l am fairly new to iOS growth and simply having a tough time attempting to make MQTT publish messages from my cellphone. l want to use the app I’ve constructed to manage the raspberry pi wheels (the step motors extra particularly). I made a button to connect with the robotic.
struct ConnectToRobot: View {
var physique: some View {
Button {
print("Hook up with robotic")
mqttClient.join()
} label: {
Picture(systemName: "circle")
.renderingMode(.template)
.resizable()
.aspectRatio(contentMode: .match)
.body(width: 100, peak: 100)
.foregroundColor(.white)
}
}
}
When l press the button from the app in my cellphone, it connects to the raspberry pi and it exhibits me the message “subscribing”, “subscribed”. Nevertheless, when l press every other buttons on the app, like “ahead” or the rest it appears to not work in any respect. Right here is the code from the RPi:
#For checking the connection standing
def connectionStatus(shopper, userdata, flags, rc):
print("subscribing")
mqttClient.subscribe("robotic/transfer")
print("subscribed")
#motion management
def messageDecoder(shopper, userdata, msg):
message = msg.payload.decode(encoding='UTF-8')
if message == "f":
ahead()
mess2 = msg.payload.decode(encoding='UTF-8')
print("^^^ ahead! ^^^")
elif message == "b":
backward()
print("/ backward /")
elif message == "l":
left()
print("<- left")
elif message == "r":
proper()
print("-> proper")
elif message == "fl":
diagFL()
print(" Diagonal Entrance Left")
elif message == "fr":
diagFR()
print("/ Diag Entrance Proper")
elif message == "bl":
diagBL()
print("/ Diag Again Left")
elif message == "br":
diagBR()
print(" Diag again Proper")
elif message == "cw":
cw()
print("O Clockwise")
elif message == "ccw":
ccw()
print("O Counter Clockwise")
elif message == "s":
cease()
else:
print("?!? Unknown message?!?")
# Arrange calling capabilities to mqttClient
mqttClient.on_connect = connectionStatus
mqttClient.on_message = messageDecoder
# Hook up with the MQTT server & loop ceaselessly.
# CTRL-C will cease this system from working.
mqttClient.join(serverAddress)
mqttClient.loop_forever()
That is my swiftUI code beneath:
import SwiftUI
import CocoaMQTT
let mqttClient = CocoaMQTT(clientID: "Robotic", host: "raspberrypi.native", port: 1883)
struct ContentView: View {
var physique: some View {
ZStack {
VStack{
HStack {
VStack {
BackwardLeft()
Backward()
BackwardRight()
}
VStack{
Left()
ConnectToRobot()
Proper()
}
VStack {
ForwardLeft()
Ahead()
ForwardRight()
}
}
}
}
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
//First VStack
//Again left
struct BackwardLeft: View {
var physique: some View {
Button {
print("Transfer again left")
} label: {
Picture(systemName: "arrow.up.left.sq.")
.renderingMode(.template)
.resizable()
.aspectRatio(contentMode: .match)
.body(width: 100, peak: 100)
.foregroundColor(.white)
}
}
}
//Backward
struct Backward: View {
var physique: some View {
Button (motion: {
mqttClient.publish("robotic/transfer", withString: "b")
print("Transfer again")
}, label: {
Picture(systemName: "arrow.left.sq.")
.renderingMode(.template)
.resizable()
.aspectRatio(contentMode: .match)
.body(width: 100, peak: 100)
.foregroundColor(.white)
})
}
}
//Again Proper
struct BackwardRight: View {
var physique: some View {
Button {
print("Again proper")
} label: {
Picture(systemName: "arrow.down.left.sq.")
.renderingMode(.template)
.resizable()
.aspectRatio(contentMode: .match)
.body(width: 100, peak: 100)
.foregroundColor(.white)
}
}
}
//Second VStack
//Left
struct Left: View {
var physique: some View {
Button {
mqttClient.allowUntrustCACertificate = true
mqttClient.publish("robotic/transfer", withString: "l")
print("Transfer left")
} label: {
Picture(systemName: "arrow.up.sq.")
.renderingMode(.template)
.resizable()
.aspectRatio(contentMode: .match)
.body(width: 100, peak: 100)
.foregroundColor(.white)
}
}
}
//MQTT Connection
struct ConnectToRobot: View {
var physique: some View {
Button {
print("Hook up with robotic")
mqttClient.join()
} label: {
Picture(systemName: "circle")
.renderingMode(.template)
.resizable()
.aspectRatio(contentMode: .match)
.body(width: 100, peak: 100)
.foregroundColor(.white)
}
}
}
//Proper
struct Proper: View {
var physique: some View {
Button {
print("Transfer proper")
mqttClient.publish("robotic/transfer", withString: "r")
} label: {
Picture(systemName: "arrow.down.sq.")
.renderingMode(.template)
.resizable()
.aspectRatio(contentMode: .match)
.body(width: 100, peak: 100)
.foregroundColor(.white)
}
}
}
//Third VStack
//Ahead left
struct ForwardLeft: View {
var physique: some View {
Button {
print("Transfer foward left")
} label: {
Picture(systemName: "arrow.up.proper.sq.")
.renderingMode(.template)
.resizable()
.aspectRatio(contentMode: .match)
.body(width: 100, peak: 100)
.foregroundColor(.white)
}
}
}
//Ahead
struct Ahead: View {
var physique: some View {
Button {
mqttClient.publish("robotic/transfer", withString: "f")
print("Transfer ahead")
} label: {
Picture(systemName: "arrow.proper.sq.")
.renderingMode(.template)
.resizable()
.aspectRatio(contentMode: .match)
.body(width: 100, peak: 100)
.foregroundColor(.white)
}
}
}
//Ahead proper
struct ForwardRight: View {
var physique: some View {
Button {
print("Transfer prime proper")
} label: {
Picture(systemName: "arrow.down.proper.sq.")
.renderingMode(.template)
.resizable()
.aspectRatio(contentMode: .match)
.body(width: 100, peak: 100)
.foregroundColor(.white)
}
}
}
I’m not certain what’s flawed, as a result of when l press join the message exhibits up on the PI terminal however when l press a course button nothing exhibits up. I’m pondering it may be a connection challenge or one thing l did flawed within the IOS code. Thanks prematurely
I attempted to alter the swiftUI code but it surely did not work
