2.1.28, initiation update to PXT v5.28.24 (#54)
This commit is contained in:
Amerlander
committed by
Peli de Halleux
Peli de Halleux
parent
38a964516e
commit
5c114a0c57
@ -6,11 +6,11 @@ Find how bright the [LED screen](/device/screen) is _when it is turned on_.
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led.brightness();
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```
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### Returns
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## Returns
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* a [number](/reference/types/number) that means how bright the screen is when it is turned on, from `0` (darkest) to `255` (brightest). For example, the number `127` means the screen is halfway bright when it is turned on.
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* a [number](/types/number) that means how bright the screen is when it is turned on, from `0` (darkest) to `255` (brightest). For example, the number `127` means the screen is halfway bright when it is turned on.
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### Example: highest brightness
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## Example: highest brightness
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This program makes the screen completely bright when it is turned on (if it is not that way already):
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@ -21,7 +21,7 @@ if (led.brightness() < 255) {
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```
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### Example: change brightness
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## Example: change brightness
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This program makes the screen brightness 100% (255). Then it turns on
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the center LED (`2, 2`), waits for one second and then sets the screen
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@ -34,7 +34,7 @@ basic.pause(1000)
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led.setBrightness(led.brightness() / 2)
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```
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### See also
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## See also
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[set brightness](/reference/led/set-brightness), [fade in](/reference/led/fade-in), [fade out](/reference/led/fade-out)
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@ -6,21 +6,21 @@ Turns the LED screen on and off
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led.enable(false);
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```
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### Parameters
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## Parameters
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* ``on`` is a [boolean](/reference/types/boolean) that defines the on/off state of the screen
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* ``on`` is a [boolean](/types/boolean) that defines the on/off state of the screen
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### Example: Turning off the screen
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## Example: Turning off the screen
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This program turns off the screen when pressing button ``B``
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```typescript
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```blocks
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input.onButtonPressed(Button.B, () => {
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led.enable(false)
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});
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```
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### Pins: P3, P4, P6, P7, P9, P10
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## Pins: P3, P4, P6, P7, P9, P10
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These pins are coupled to the LED matrix display, and also it’s associated ambient light sensing mode.
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To disable the display driver feature (which will automatically disable the light sensing feature) call the DAL function ``led.enable(false)``.
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@ -28,6 +28,6 @@ To turn the display driver back on again later, call ``led.enable(true)``.
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More information at http://tech.microbit.org/hardware/edgeconnector_ds/ .
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### See also
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## See also
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[unplot](/reference/led/unplot), [point](/reference/led/point), [LED screen](/device/screen)
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@ -6,11 +6,11 @@ Gradually increase the [LED screen](/device/screen) brightness until the LED lig
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led.fadeIn(700);
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```
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### Parameters
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## Parameters
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* ms - [Number](/reference/types/number); the speed by which the screen brightness is increased, expressed in milliseconds (1,000 milliseconds = 1 second). The smaller the number the faster the screen brightness increased.
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* ms - [Number](/types/number); the speed by which the screen brightness is increased, expressed in milliseconds (1,000 milliseconds = 1 second). The smaller the number the faster the screen brightness increased.
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### Example: fading dot
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## Example: fading dot
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The following code turns on centre LED and then gradually increases and decreases the screen brightness (the centre LED pulses 5 times):
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@ -24,7 +24,7 @@ for (let i = 0; i < 5; i++) {
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}
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```
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### See also
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## See also
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[brightness](/reference/led/brightness), [fade out](/reference/led/fade-out), [set brightness](/reference/led/set-brightness)
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@ -6,11 +6,11 @@ Gradually decrease the [LED screen](/device/screen) brightness until the LED lig
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led.fadeOut(700);
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```
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### Parameters
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## Parameters
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* ms - [Number](/reference/types/number); the speed that the screen brightness is decreased, expressed in milliseconds (1,000 milliseconds = 1 second). The smaller the number the faster the screen brightness decreased.
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* ms - [Number](/types/number); the speed that the screen brightness is decreased, expressed in milliseconds (1,000 milliseconds = 1 second). The smaller the number the faster the screen brightness decreased.
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### Example: fade away letter A
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## Example: fade away letter A
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The following example sets the screen brightness to the maximum brightness, displays the letter A, and then gradually fades the letter away:
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@ -20,7 +20,7 @@ basic.showString("A", 1000)
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led.fadeOut(1000)
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```
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### See also
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## See also
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[brightness](/reference/led/brightness), [fade in](/reference/led/fade-in), [set brightness](/reference/led/set-brightness)
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@ -6,7 +6,7 @@ Turn on all the 25 LEDs on the [LED screen](/device/screen).
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led.plotAll()
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```
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### See also
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## See also
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[LED screen](/device/screen), [clear screen](/reference/basic/clear-screen)
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@ -1,30 +1,29 @@
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# Plot Bar Graph
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# plot Bar Graph
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Displays a bar graph of the numbers you say.
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A bar graph is a kind of chart that shows numbers as lines with different lengths.
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Display a bar graph for a number value.
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```sig
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led.plotBarGraph(2, 20);
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```
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### Parameters
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A bar graph is a kind of chart that shows numbers as lines with different lengths.
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* ``value`` is a [number](/reference/types/number) that means what you
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## Parameters
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* **value**: a [number](/types/number) that is the value of what you
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are measuring or trying to show. For example, if you are measuring
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the temperature of ice with the @boardname@, ``value`` might be `0`
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because the temperature might be 0 degrees centigrade.
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* ``high`` is a [number](/reference/types/number) that means the highest
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possible number that the ``value`` parameter can be. This number is
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also the tallest that the lines in the bar chart can be.
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if the temperature is 0 degrees Celsius.
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* **high**: a [number](/types/number) that is the highest
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possible number (maximum) that the **value** parameter can be. The lines in the bar graph will reach their highest point when **value** reaches this number. If **high** is `0`, then the largest value recently plotted is used as the maximum.
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### Example: chart acceleration
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## Example: chart acceleration
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This program shows a bar graph of the [acceleration](/reference/input/acceleration)
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Show a bar graph of the [acceleration](/reference/input/acceleration)
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in the `x` direction of the @boardname@.
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The @boardname@'s `x` direction is from left to right (or right to left).
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The more you speed up moving the @boardname@ in this direction,
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the taller the lines in the bar graph will be,
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until they are as tall as the parameter `high` says they can be.
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The faster you move the @boardname@ in this direction,
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the taller the lines in the bar graph will be. The **high** paramter is `1023` which sets the highest possible value of acceleration to show.
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```blocks
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basic.forever(() => {
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@ -33,7 +32,7 @@ basic.forever(() => {
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})
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```
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### See also
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## See also
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[brightness](/reference/led/brightness), [fade in](/reference/led/fade-in), [fade out](/reference/led/fade-out), [LED screen](/device/screen), [stop animation](/reference/led/stop-animation)
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63
docs/reference/led/plot-brightness.md
Normal file
63
docs/reference/led/plot-brightness.md
Normal file
@ -0,0 +1,63 @@
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# Plot Brightness
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Turn on a LED light with a specific brightness on the [LED screen](/device/screen).
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```sig
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led.plotBrightness(0,0, 128);
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```
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### Parameters
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* ``x`` is a [number](/types/number) that means the
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horizontal spot on the LED screen (from left to right: 0, 1, 2, 3,
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or 4)
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* ``y`` is a [number](/types/number) that means the vertical
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spot on the LED screen (from top to bottom: 0, 1, 2, 3, or 4)
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* ``brightness` is a [number](/types/number) that represents the brightness of the LED, from 0 (off) to 255 (full brightness)
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If a parameter is [out of bounds](/reference/out-of-bounds) (a value
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other than 0 to 4), then this function will do nothing.
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### ~hint
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The LED screen is a solid square of LEDs with five LEDs on each side.
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To learn more about how you number the LEDs with ``x`` and ``y``
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coordinates, see [LED screen](/device/screen).
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### ~
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### Example: One LED
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This program turns on the bottom right LED at 50% brightness
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```blocks
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led.plotBrightness(2, 2, 128)
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```
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### Example: Square
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This program uses a [for loop](/blocks/loops/for)
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and the `plotBrightness` function
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to make a square around the edges of the LED screen.
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```blocks
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for (let i = 0; i < 5; i++) {
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led.plotBrightness(0, i, 64)
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led.plotBrightness(4, i, 128)
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led.plotBrightness(i, 0, 172)
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led.plotBrightness(i, 4, 255)
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basic.pause(500)
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}
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```
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### ~hint
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Use the [point](/reference/led/point) function to find out if an LED is
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on or off.
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### ~
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### See also
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[plot](/reference/led/plot), [unplot](/reference/led/unplot), [point](/reference/led/point), [LED screen](/device/screen)
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@ -1,34 +0,0 @@
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# Plot LEDs
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Display an [Image](/reference/images/image) on the @boardname@'s [LED screen](/device/screen). NOTE: `basic -> plot image` has been replaced by `basic -> show leds`.
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```sig
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basic.showLeds(`
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. . . . .
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. # . # .
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. . # . .
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# . . . #
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. # # # .
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`)
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```
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### Parameters
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* leds - a series of LED on/off states that form an image (see steps below)
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### Example: smiley
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```blocks
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basic.showLeds(`
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. . . . .
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. # . # .
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. . # . .
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# . . . #
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. # # # .
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`)
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```
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### See also
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[show animation](/reference/basic/show-animation), [image](/reference/images/image), [show image](/reference/images/show-image), [scroll image](/reference/images/scroll-image)
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@ -12,26 +12,26 @@ Use [unplot](/reference/led/unplot) to turn **off** an LED.
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## ~
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### Parameters
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## Parameters
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* ``x`` is a [number](/reference/types/number) that means the
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* ``x`` is a [number](/types/number) that means the
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horizontal spot on the LED screen (from left to right: 0, 1, 2, 3,
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or 4)
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* ``y`` is a [number](/reference/types/number) that means the vertical
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* ``y`` is a [number](/types/number) that means the vertical
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spot on the LED screen (from top to bottom: 0, 1, 2, 3, or 4)
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If a parameter is [out of bounds](/reference/out-of-bounds) (a value
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other than 0 to 4), then this function will do nothing.
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### ~hint
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## ~hint
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The LED screen is a solid square of LEDs with five LEDs on each side.
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To learn more about how you number the LEDs with ``x`` and ``y``
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coordinates, see [LED screen](/device/screen).
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### ~
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## ~
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### Example: One LED
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## Example: One LED
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This program turns on the bottom right LED.
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@ -40,7 +40,7 @@ led.plot(4, 4)
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```
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### Example: Square
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## Example: Square
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This program uses a [for loop](/blocks/loops/for)
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and the `plot` function
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@ -56,13 +56,13 @@ for (let i = 0; i < 5; i++) {
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}
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```
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### ~hint
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## ~hint
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Use the [point](/reference/led/point) function to find out if an LED is
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on or off.
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### ~
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## ~
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### See also
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## See also
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[unplot](/reference/led/unplot), [point](/reference/led/point), [LED screen](/device/screen)
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@ -7,30 +7,30 @@ Find whether the LED you say on the
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led.point(0,0);
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```
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### Parameters
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## Parameters
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* ``x`` is a [number](/reference/types/number) that means the
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* ``x`` is a [number](/types/number) that means the
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horizontal spot on the LED screen (from left to right: 0, 1, 2, 3,
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or 4)
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* ``y`` is a [number](/reference/types/number) that means the vertical
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* ``y`` is a [number](/types/number) that means the vertical
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spot on the LED screen (from top to bottom: 0, 1, 2, 3, or 4)
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If a parameter is [out of bounds](/reference/out-of-bounds) (a value
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other than 0 to 4), this function will return `false`.
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### Returns
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## Returns
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* a [boolean](/blocks/logic/boolean). If it is `true`, that means the LED is on. If it is `false`, that means the LED is off.
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### ~hint
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## ~hint
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The LED screen is a solid square of LEDs with five LEDs on each side.
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To learn more about how you number the LEDs with ``x`` and ``y``
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coordinates, see [LED screen](/device/screen).
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### ~
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## ~
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### Example: Toggle off
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## Example: Toggle off
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This program turns the center LED (2, 2) off if it is already on. (If
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it is already off, this program leaves it off.)
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@ -41,7 +41,7 @@ if (led.point(2, 2)) {
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}
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```
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### See also
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## See also
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[unplot](/reference/led/unplot), [plot](/reference/led/plot), [LED screen](/device/screen)
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@ -6,15 +6,15 @@ Make an [Image](/reference/images/image) out of the current state of the [LED sc
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led.screenshot();
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```
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### Parameters
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## Parameters
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* none
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### Returns
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## Returns
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* an [Image](/reference/images/image) of what is currently visible on the [LED screen](/device/screen)
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### See also
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## See also
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[create image](/reference/images/create-image), [LED screen](/device/screen),
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@ -7,14 +7,20 @@ turned on.
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led.setBrightness(121)
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```
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### Parameters
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## Parameters
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* ``value`` is a [number](/reference/types/number) that means how
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* ``value`` is a [number](/types/number) that means how
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bright the screen is when it is turned on, from `0` (darkest) to
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`255` (brightest). For example, the number `127` means the screen is
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halfway bright when it is turned on.
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### Example: change brightness
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## ~ hint
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The brightness is not supported in the simulator. You will need to try it on the @boardname@ itself!
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## ~
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## Example: change brightness
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This program makes the screen brightness 100% (`255`). Then it turns on
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the center LED (`2, 2`), waits for one second, and then sets the screen
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@ -27,6 +33,6 @@ basic.pause(1000)
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led.setBrightness(led.brightness() / 2)
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```
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### See also
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## See also
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[brightness](/reference/led/brightness), [fade in](/reference/led/fade-in), [fade out](/reference/led/fade-out), [LED screen](/device/screen)
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@ -1,8 +1,26 @@
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# Set Display Mode
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# set Display Mode
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Sets the display mode between black and white and greyscale for rendering [LEDs](/device/screen).
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Set the display mode to either black and white or greyscale for rendering [LEDs](/device/screen).
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```sig
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led.setDisplayMode(DisplayMode.Greyscale)
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```
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The LED screen can create a sense of color depth with the display mode setting. Color depth is the difference in darkness between the pixels in the display. The `greyscale` mode makes the pixels appear
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to have some amount of brightness to represent the grey value of real color. The `black and white` mode just shows an image on the pixels with the LEDs either on or off.
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## Parameters
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* ``mode`` the display mode type. This is either `BlackAndWhite` or `GreyScale`.
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## Example
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Set the display mode to `black and white`.
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```blocks
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led.setDisplayMode(DisplayMode.BlackAndWhite)
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```
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## See also
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[set brightness](/reference/led/set-brightness)
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@ -7,7 +7,7 @@ play.
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led.stopAnimation()
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```
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### Example
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## Example
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This program sets up the ``stop animation`` part of the program,
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and then shows a string that you can stop with button ``B``.
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@ -19,14 +19,14 @@ input.onButtonPressed(Button.B, () => {
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basic.showString("STOP ME! STOP ME! PLEASE, WON'T SOMEBODY STOP ME?");
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```
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### ~hint
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## ~hint
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It's important to set up ``stop animation`` before showing the
|
||||
animation, so the ``stop animation`` part of the program will be ready
|
||||
to go.
|
||||
|
||||
### ~
|
||||
## ~
|
||||
|
||||
### See Also
|
||||
## See Also
|
||||
|
||||
[show animation](/reference/basic/show-animation)
|
||||
|
||||
@ -6,11 +6,11 @@ Toggle all the 25 LEDs on the [LED screen](/device/screen) - if an LED is on bef
|
||||
led.toggleAll()
|
||||
```
|
||||
|
||||
### Parameters
|
||||
## Parameters
|
||||
|
||||
* none
|
||||
|
||||
### Example
|
||||
## Example
|
||||
|
||||
The following code will result in every LED being on except for the LED at coordinate (2,2)
|
||||
|
||||
@ -26,7 +26,7 @@ led.plot(2, 2)
|
||||
led.toggleAll()
|
||||
```
|
||||
|
||||
### See also
|
||||
## See also
|
||||
|
||||
[toggle](/reference/led/toggle), [LED screen](/device/screen), [clear screen](/reference/basic/clear-screen)
|
||||
|
||||
|
||||
@ -6,18 +6,18 @@ Toggle a LED light on the [LED screen](/device/screen), meaning to turn it on (
|
||||
led.toggle(0,0)
|
||||
```
|
||||
|
||||
### Parameters
|
||||
## Parameters
|
||||
|
||||
* x - [Number](/reference/types/number); the *x coordinate* or horizontal position (0, 1, 2, 3, 4)
|
||||
* y - [Number](/reference/types/number); the *y coordinate* or vertical position (0, 1, 2, 3, 4)
|
||||
* x - [Number](/types/number); the *x coordinate* or horizontal position (0, 1, 2, 3, 4)
|
||||
* y - [Number](/types/number); the *y coordinate* or vertical position (0, 1, 2, 3, 4)
|
||||
|
||||
If a parameter is [out of bounds](/reference/out-of-bounds) (a value other than 0-4), then this function will do nothing.
|
||||
|
||||
### x, y coordinates?
|
||||
## x, y coordinates?
|
||||
|
||||
The LED screen is made up of 25 LEDs arranged in a 5x5 grid. To figure out the ``x``, ``y`` coordinates, see [LED screen](/device/screen).
|
||||
|
||||
### Example
|
||||
## Example
|
||||
|
||||
This code toggles the centre LED:
|
||||
|
||||
@ -25,7 +25,7 @@ This code toggles the centre LED:
|
||||
led.toggle(2, 2)
|
||||
```
|
||||
|
||||
### See also
|
||||
## See also
|
||||
|
||||
[toggle all](/reference/led/toggle-all), [plot](/reference/led/plot), [unplot](/reference/led/unplot), [point](/reference/led/point), [LED screen](/device/screen),
|
||||
|
||||
|
||||
@ -12,26 +12,26 @@ Use [plot](/reference/led/plot) to turn **on** an LED.
|
||||
|
||||
## ~
|
||||
|
||||
### Parameters
|
||||
## Parameters
|
||||
|
||||
* ``x`` is a [number](/reference/types/number) that means the
|
||||
* ``x`` is a [number](/types/number) that means the
|
||||
horizontal spot on the LED screen (from left to right: 0, 1, 2, 3,
|
||||
or 4)
|
||||
* ``y`` is a [number](/reference/types/number) that means the vertical
|
||||
* ``y`` is a [number](/types/number) that means the vertical
|
||||
spot on the LED screen (from top to bottom: 0, 1, 2, 3, or 4)
|
||||
|
||||
If a parameter is [out of bounds](/reference/out-of-bounds) (a value
|
||||
other than 0 to 4), then this function will do nothing.
|
||||
|
||||
### ~hint
|
||||
## ~hint
|
||||
|
||||
The LED screen is a solid square of LEDs with five LEDs on each side.
|
||||
To learn more about how you number the LEDs with ``x`` and ``y``
|
||||
coordinates, see [LED screen](/device/screen).
|
||||
|
||||
### ~
|
||||
## ~
|
||||
|
||||
### Example: Center off
|
||||
## Example: Center off
|
||||
|
||||
This program shows a picture on the LED screen, and then turns off the center LED with `unplot`.
|
||||
|
||||
@ -47,14 +47,14 @@ basic.pause(500)
|
||||
led.unplot(2, 2)
|
||||
```
|
||||
|
||||
### ~hint
|
||||
## ~hint
|
||||
|
||||
Use the [point](/reference/led/point) function to find out if an LED is
|
||||
on or off.
|
||||
|
||||
### ~
|
||||
## ~
|
||||
|
||||
|
||||
### See also
|
||||
## See also
|
||||
|
||||
[plot](/reference/led/plot), [point](/reference/led/point), [LED screen](/device/screen)
|
||||
|
||||
Reference in New Issue
Block a user