42 lines
2.0 KiB
TypeScript
42 lines
2.0 KiB
TypeScript
/**
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* Control currents in Pins for analog/digital signals, servos, i2c, ...
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*/
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//% color=#B22222 weight=30 icon="\uf140"
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//% advanced=true
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namespace pins {
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/**
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* Map a number from one range to another. That is, a value of ``from low`` would get mapped to ``to low``, a value of ``from high`` to ``to high``, values in-between to values in-between, etc.
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* @param value value to map in ranges
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* @param fromLow the lower bound of the value's current range
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* @param fromHigh the upper bound of the value's current range, eg: 1023
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* @param toLow the lower bound of the value's target range
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* @param toHigh the upper bound of the value's target range, eg: 4
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*/
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//% help=pins/map weight=23
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//% blockId=pin_map block="map %value|from low %fromLow|from high %fromHigh|to low %toLow|to high %toHigh"
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export function map(value: number, fromLow: number, fromHigh: number, toLow: number, toHigh: number): number {
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return ((value - fromLow) * (toHigh - toLow)) / (fromHigh - fromLow) + toLow;
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}
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/**
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* Read one number from 7-bit I2C address.
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*/
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//% help=pins/i2c-read-number blockGap=8 advanced=true
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//% blockId=pins_i2c_readnumber block="i2c read number|at address %address|of format %format|repeated %repeat" weight=7
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export function i2cReadNumber(address: number, format: NumberFormat, repeated?: boolean): number {
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let buf = pins.i2cReadBuffer(address, pins.sizeOf(format), repeated)
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return buf.getNumber(format, 0)
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}
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/**
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* Write one number to a 7-bit I2C address.
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*/
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//% help=pins/i2c-write-number blockGap=8 advanced=true
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//% blockId=i2c_writenumber block="i2c write number|at address %address|with value %value|of format %format|repeated %repeat" weight=6
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export function i2cWriteNumber(address: number, value: number, format: NumberFormat, repeated?: boolean): void {
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let buf = createBuffer(pins.sizeOf(format))
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buf.setNumber(format, 0, value)
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pins.i2cWriteBuffer(address, buf, repeated)
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}
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}
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