publicWagsHome/rgb-led-board
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attempt at receiving message for board
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Nathan
2023-01-14 19:29:54 +00:00
parent c7f4f17242
commit 17340399e5
2 changed files with 32 additions and 57 deletions
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45
main.go
View File

@@ -13,6 +13,7 @@ import (
rgbmatrix "gitea.wagshome.duckdns.org/publicWagsHome/go-rpi-rgb-led-matrix"
"github.com/disintegration/imaging"
MQTT "github.com/eclipse/paho.mqtt.golang"
mqtt "github.com/eclipse/paho.mqtt.golang"
"github.com/fogleman/gg"
)
@@ -25,6 +26,7 @@ type Animation struct {
stroke int
image []image.Image
updown int
msg chan mqtt.Message
}
var (
@@ -66,26 +68,38 @@ func main() {
}*/
m, err := rgbmatrix.NewRGBLedMatrix(config)
fatal(err)
mqMessages := make(chan mqtt.Message)
go listener(mqMessages)
tk := rgbmatrix.NewToolKit(m)
defer tk.Close()
tk.PlayAnimation(NewAnimation(image.Point{64, 32}))
go animator(tk, mqMessages)
}
func setupMQTT() {
func listener(mqMessages chan mqtt.Message) {
opts := setupMQTT()
client := MQTT.NewClient(opts)
topic := "home/rgbboard"
if token := client.Connect(); token.Wait() && token.Error() != nil {
panic(token.Error())
}
client.Subscribe(topic, 0, func(client mqtt.Client, msg mqtt.Message) {
log.Println("Receiving ", string(msg.Payload()), " on topic: ", msg.Topic())
mqMessages <- msg
})
}
func animator(tk *rgbmatrix.ToolKit, mqMessages chan mqtt.Message) {
tk.PlayAnimation(NewAnimation(image.Point{64, 32}, mqMessages))
}
func setupMQTT() *mqtt.ClientOptions {
opts := MQTT.NewClientOptions()
opts.AddBroker(fmt.Sprintf("tcp://%s:%s", os.Getenv("MQTTBROKER"), os.Getenv("MQTTPORT")))
opts.SetUsername(os.Getenv("MQTTUSER"))
opts.SetPassword(os.Getenv("MQTTPASS"))
opts.SetDefaultPublishHandler(messagePubHandler)
opts.OnConnect = connectHandler
opts.OnConnectionLost = connectLostHandler
client := MQTT.NewClient(opts)
if token := client.Connect(); token.Wait() && token.Error() != nil {
panic(token.Error())
}
return opts
}
func init() {
flag.Parse()
@@ -97,7 +111,7 @@ func fatal(err error) {
}
}
func NewAnimation(sz image.Point) *Animation {
func NewAnimation(sz image.Point, mqMessages chan mqtt.Message) *Animation {
reader, err := os.Open("marioUp.png")
if err != nil {
log.Fatal(err)
@@ -123,6 +137,7 @@ func NewAnimation(sz image.Point) *Animation {
stroke: 8,
image: images,
updown: 0,
msg: mqMessages,
}
}
@@ -136,7 +151,11 @@ func (a *Animation) Next() (image.Image, <-chan time.Time, error) {
a.ctx.DrawImageAnchored(imaging.FlipH(a.image[a.updown]), a.position.X, a.position.Y, 0.5, 0.5)
}
a.ctx.SetColor(color.White)
a.ctx.DrawString("mario", 5, 9)
select {
case msg := <-a.msg:
a.ctx.DrawString(string(msg.Payload()), 5, 9)
default:
}
return a.ctx.Image(), time.After(time.Millisecond * 50), nil
}

44
mqtt.go
View File

@@ -1,44 +0,0 @@
package main
import (
"fmt"
MQTT "github.com/eclipse/paho.mqtt.golang"
mqtt "github.com/eclipse/paho.mqtt.golang"
)
func publish(client MQTT.Client, bps float32) {
topic := "WirelessBandwidth/state"
//Payload := "{\"Mbps\":\"" + fmt.Sprintf("%f", bps) + "\"}"
token := client.Publish(topic, 1, false, Payload)
token.Wait()
//fmt.Println(fmt.Sprintf("%f",bps))
}
func subscribe(client MQTT.Client, bps float32) {
topic := "home/rgbboard"
//Payload := "{\"Mbps\":\"" + fmt.Sprintf("%f", bps) + "\"}"
sub := client.Subscribe()
token := client.Publish(topic, 1, false, Payload)
token.Wait()
//fmt.Println(fmt.Sprintf("%f",bps))
}
var messagePubHandler MQTT.MessageHandler = func(client mqtt.Client, msg mqtt.Message) {
fmt.Printf("Received message: %s from topic: %s\n", msg.Payload(), msg.Topic())
}
var connectHandler MQTT.OnConnectHandler = func(client mqtt.Client) {
fmt.Println("Connected")
//topic := "homeassistant/sensor/WirelessBandwidth/config"
//Payload := "{\"name\":\"WirelessBandwidth\",\"state_class\":\"measurement\",\"unit_of_measurement\":\"Mbps\", \"device_class\":\"monetary\", \"state_topic\":\"WirelessBandwidth/state\",\"unique_id\":\"WirelessBandwidth\",\"value_template\":\"{{ value_json.Mbps }}\"}"
//token := client.Publish(topic, 1, false, Payload)
//token.Wait()
}
var connectLostHandler MQTT.ConnectionLostHandler = func(client mqtt.Client, err error) {
fmt.Printf("Connect lost: %v", err)
}