func main() {
flag.Parse()
if err := embd.InitSPI(); err != nil {
panic(err)
}
defer embd.CloseSPI()
bus := embd.NewSPIBus(embd.SPIMode0, channel, speed, bpw, delay)
defer bus.Close()
for i := 0; i < 30; i++ {
time.Sleep(1 * time.Second)
val, err := getSensorValue(bus)
if err != nil {
panic(err)
}
fmt.Printf("value is: %v\n", val)
}
}
func main() {
flag.Parse()
fmt.Println("this is a sample code for mcp3008 10bit 8 channel ADC")
if err := embd.InitSPI(); err != nil {
panic(err)
}
defer embd.CloseSPI()
spiBus := embd.NewSPIBus(embd.SPIMode0, channel, speed, bpw, delay)
defer spiBus.Close()
adc := mcp3008.New(mcp3008.SingleMode, spiBus)
for i := 0; i < 20; i++ {
time.Sleep(1 * time.Second)
val, err := adc.AnalogValueAt(0)
if err != nil {
panic(err)
}
fmt.Printf("analog value is: %v\n", val)
}
}
func main() {
if err := embd.InitSPI(); err != nil {
panic(err)
}
defer embd.CloseSPI()
spiBus := embd.NewSPIBus(embd.SPIMode0, 0, 1000000, 8, 0)
defer spiBus.Close()
dataBuf := [3]uint8{1, 2, 3}
if err := spiBus.TransferAndReceiveData(dataBuf[:]); err != nil {
panic(err)
}
fmt.Println("received data is: %v", dataBuf)
dataReceived, err := spiBus.ReceiveData(3)
if err != nil {
panic(err)
}
fmt.Println("received data is: %v", dataReceived)
dataByte := byte(1)
receivedByte, err := spiBus.TransferAndReceiveByte(dataByte)
if err != nil {
panic(err)
}
fmt.Println("received byte is: %v", receivedByte)
receivedByte, err = spiBus.ReceiveByte()
if err != nil {
panic(err)
}
fmt.Println("received byte is: %v", receivedByte)
}