71 lines
1.6 KiB
Go
71 lines
1.6 KiB
Go
//go:build example
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// +build example
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//
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// Do not build by default.
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package main
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import (
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"fmt"
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"time"
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"gobot.io/x/gobot/v2"
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"gobot.io/x/gobot/v2/drivers/spi"
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"gobot.io/x/gobot/v2/platforms/tinkerboard"
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)
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// Wiring
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// PWR Tinkerboard: 1 (+3.3V, VCC), 2(+5V), 6, 9, 14, 20 (GND)
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// SPI0 Tinkerboard (not working with armbian): 11 (CLK), 13 (TXD), 15 (RXD), 29 (CSN0), 31 (CSN1, n.c.)
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// SPI2 Tinkerboard: 23 (CLK), 19 (TXD), 21 (RXD), 24 (CSN0), 26 (CSN1, n.c.)
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// MFRC522 plate: VCC, GND, SCK (CLK), SDO (->TXD), SDI (->RXD), NCS/SDA (CSN0/CSN1?)
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func main() {
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a := tinkerboard.NewAdaptor()
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d := spi.NewMFRC522Driver(a, spi.WithBusNumber(2))
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wasCardDetected := false
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const textToCard = "Hello RFID user!\nThis text was written to card."
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work := func() {
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if err := d.PrintReaderVersion(); err != nil {
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fmt.Println("get version err:", err)
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}
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gobot.Every(2*time.Second, func() {
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if !wasCardDetected {
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fmt.Println("\n+++ poll for card +++")
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if err := d.IsCardPresent(); err != nil {
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fmt.Println("no card found")
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} else {
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fmt.Println("\n+++ write card +++")
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err := d.WriteText(textToCard)
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if err != nil {
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fmt.Println("write err:", err)
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}
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wasCardDetected = true
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}
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} else {
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fmt.Println("\n+++ read card +++")
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text, err := d.ReadText()
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if err != nil {
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fmt.Println("read err:", err)
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wasCardDetected = false
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} else {
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fmt.Printf("-- start text --\n%s\n-- end text --\n", text)
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}
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}
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})
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}
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robot := gobot.NewRobot("spiBot",
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[]gobot.Connection{a},
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[]gobot.Device{d},
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work,
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)
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if err := robot.Start(); err != nil {
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panic(err)
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}
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}
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