mirror of
https://github.com/tinygo-org/drivers.git
synced 2026-08-03 06:27:47 +00:00
Thomas Richner
34 lines
784 B
Go
34 lines
784 B
Go
package main
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import (
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"machine"
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"strconv"
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"time"
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"tinygo.org/x/drivers/seesaw"
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)
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const readDelay = time.Microsecond * 3000
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// example reading soil moisture with an Adafruit capacitive soil-sensor (4026) powered by a seesaw
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// https://learn.adafruit.com/adafruit-stemma-soil-sensor-i2c-capacitive-moisture-sensor/overview
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func main() {
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machine.I2C0.Configure(machine.I2CConfig{})
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dev := seesaw.New(machine.I2C0)
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dev.Address = 0x36
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// the soil sensor is especially slow, let's give it some more time
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dev.ReadDelay = readDelay
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var buf [2]byte
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err := dev.Read(seesaw.ModuleTouchBase, seesaw.FunctionTouchChannelOffset, buf[:])
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if err != nil {
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panic(err)
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}
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moisture := uint16(buf[0])<<8 | uint16(buf[1])
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println("soil moisture: " + strconv.Itoa(int(moisture)))
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}
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