beep when you press the buttonHEADmaster

Polls PIC32 ignition button state, tells the cVEND to beep.

1 files changed, 42 insertions, 0 deletions

diff --git a/cmd/beep/main.go b/cmd/beep/main.go
new file mode 100644
index 0000000..56263d5
--- /dev/null
+++ b/cmd/beep/main.go
@@ -0,0 +1,42 @@
+package main
+
+import (
+	"encoding/binary"
+	"time"
+
+	"pm3.dev/cvend"
+	"pm3.dev/pic32"
+)
+
+func must[V any](v V, err error) V {
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+func main() {
+	cv := must(cvend.OpenIPP(nil))
+	defer cv.Close()
+	var lastIgnition bool
+	pic := must(pic32.OpenIPP(func(msgType byte, msgData []byte) {
+		if msgType == 0x03 && binary.BigEndian.Uint16(msgData[:2]) == 0x03fb {
+			ignition := msgData[2] != 0
+			if lastIgnition != ignition {
+				lastIgnition = ignition
+				if ignition {
+					if err := cv.SendIPP(0x22, []byte{0x06, 0x00, 0x01, 0x00}); err != nil {
+						panic(err)
+					}
+				}
+			}
+		}
+	}))
+	defer pic.Close()
+	for {
+		if err := pic.SendIPP(0x02, []byte{0x03, 0xfb}); err != nil {
+			panic(err)
+		}
+		time.Sleep(100 * time.Millisecond)
+	}
+}