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Some edits to 'soil moisture' projects

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ganicke
2017-12-01 14:57:34 -08:00
parent 40101e60bd
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docs/projects/soil-moisture/connect.md
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@ -1,15 +1,12 @@
# Connect
We are going to use radio to send the current moisture
level to a dashboard @boardname@. The dashboard
will display one LED per @boardname@.
Use the radio to send the current moisture level to a dashboard @boardname@. The dashboard will display one LED per @boardname@.
## Moisture sensor
To make it happen, we need to change the program to
To make it happen, we need to change the program to:
* setup the radio by choosing group 4 and sending the serial number of the device
* send the moisture level **divided by 4**
as the dashboard takes values between ``0`` and ``255``.
* send the moisture level **divided by 4** as the dashboard takes values between ``0`` and ``255``.
```blocks
radio.setTransmitSerialNumber(true)
@ -34,15 +31,17 @@ basic.forever(() => {
## The dashboard
The dashboard code can be found at [/examples/radio-dashboard](/examples/radio-dashboard).
The dashboard code is found in the [radio dashboard](/examples/radio-dashboard) example.
Download the code from that example into the @boardname@ that will be used to display the result.
### Setup a dashboard @boardname@
When the dashboard receives a message from a @boardname@, it find a pixel for that board (and remembers it)
and uses the number received as the brightness of the LED.
Download the code from that example into the @boardname@ that will be used to display the results.
When a message hasn't been received by a board for some time, it's pixel will start to blink. After more time, it will simply turn off.
### Dashboard operation
When the dashboard receives a message from a @boardname@, it finds a pixel to use for that board (and remembers it). The number sent in the messages from the board are used to set the brightness of the LED.
When a message hasn't been received by the dashboard for awhile, it's pixel will start to blink. Then, after some time, it will simply turn off.
```package
radio