mirror of https://github.com/kidoman/embd
47 lines
749 B
Go
47 lines
749 B
Go
package main
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import (
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"flag"
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"fmt"
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"time"
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"github.com/kidoman/embd"
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_ "github.com/kidoman/embd/host/all"
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)
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func main() {
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flag.Parse()
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if err := embd.InitSPI(); err != nil {
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panic(err)
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}
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bus := embd.NewSPIBus(embd.SpiMode0, 0, 1000000, 8, 0)
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defer clean(bus)
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for i := 0; i < 30; i++ {
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time.Sleep(1 * time.Second)
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val, _ := getSensorValue(bus)
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fmt.Printf("value is: %v\n", val)
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}
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}
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func clean(bus embd.SPIBus) {
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bus.Close()
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embd.CloseSPI()
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}
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func getSensorValue(bus embd.SPIBus) (uint16, error) {
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data := make([]uint8, 3)
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data[0] = 1
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data[1] = 128
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data[2] = 0
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var err error
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err = bus.TransferAndRecieveData(data)
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if err != nil {
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return uint16(0), err
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}
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return uint16(data[1]&0x03)<<8 | uint16(data[2]), nil
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}
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