Wio Terminal x Qubitro

credential.h

#define WIFI_SSID "YOUR_WIFI_SSID"
#define WIFI_PASS "YOUR_WIFI_PASSWORD"
#define MQTT_BROKER "broker.qubitro.com"
#define MQTT_USER "YOUR_QUBITRO_DEVICE_ID"
#define MQTT_PASS "YOUR_QUBITRO_DEVICE_TOKEN"
#define MQTT_CLID "YOUR_QUBITRO_DEVICE_ID"
#define MQTT_PORT 1883
#define MQTT_TOPIC "YOUR_QUBITRO_DEVICE_ID"

WioQubitro.ino

// import libraries
#include "credential.h"
#include "TFT_eSPI.h"
#include "LIS3DHTR.h"
#include "rpcWiFi.h"
#include <ArduinoMqttClient.h>

// objects
TFT_eSPI tft;
LIS3DHTR<TwoWire> lis;
int button = 0;

WiFiClient wifiClient;
MqttClient mqttClient(wifiClient);
const char* ssid = WIFI_SSID;
const char* password = WIFI_PASS;

void setup() {
  // TFT LCD setup
  tft.begin();
  tft.setRotation(3);
  tft.fillScreen(TFT_BLACK);  

  // sensors setup
  lis.begin(Wire1);
  lis.setOutputDataRate(LIS3DHTR_DATARATE_25HZ);
  lis.setFullScaleRange(LIS3DHTR_RANGE_2G);
  pinMode(WIO_LIGHT, INPUT);
  pinMode(WIO_MIC, INPUT);
  pinMode(WIO_5S_PRESS, INPUT_PULLUP);

  // connect WiFi
  WiFi.mode(WIFI_STA);
  WiFi.disconnect();
  tft.setTextSize(2);
  tft.drawString("Processing...", 20, 20);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    WiFi.begin(ssid, password);
  }
  tft.setTextSize(2);
  tft.drawString("WiFi connected!", 20, 50);
  
  // connect to Qubitro mqtt broker
  mqttClient.setId(MQTT_CLID);
  mqttClient.setUsernamePassword(MQTT_USER, MQTT_PASS);
  if (!mqttClient.connect(MQTT_BROKER, MQTT_PORT)){
    tft.setTextSize(2);
    tft.drawString("Failed connect to Qubitro", 20, 80);
  }
  tft.setTextSize(2);
  tft.drawString("Qubitro connected!", 20, 80);

  delay(3000);
  tft.fillScreen(TFT_BLACK);
}

void loop() {
  int light = analogRead(WIO_LIGHT);
  int mic = analogRead(WIO_MIC);  
  float x, y, z;
  x = lis.getAccelerationX();
  y = lis.getAccelerationY();
  z = lis.getAccelerationZ();

  // event: if button pressed, publish data to Qubitro
  if (digitalRead(WIO_5S_PRESS) == LOW) {
    button += 1;

    // publish data
    mqttClient.poll();
    mqttClient.beginMessage(MQTT_TOPIC);

    // send JSON string
    mqttClient.print("{");
    mqttClient.print("\"accx\":");
    mqttClient.print(x);
    mqttClient.print(",");
    mqttClient.print("\"accy\":");
    mqttClient.print(y);
    mqttClient.print(",");
    mqttClient.print("\"accz\":");
    mqttClient.print(z);
    mqttClient.print(",");
    mqttClient.print("\"light\":");
    mqttClient.print(light);
    mqttClient.print(",");
    mqttClient.print("\"mic\":");
    mqttClient.print(mic);
    mqttClient.print(",");
    mqttClient.print("\"button\":");
    mqttClient.print(button);
    mqttClient.print("}");
    mqttClient.endMessage();
  }

  // show sensor values on TFT LCD
  tft.setTextSize(2);
  tft.drawString("Acc X:", 20, 20);
  tft.drawString("Acc Y:", 20, 95);
  tft.drawString("Acc Z:", 20, 165);
  tft.drawString("Light:", 180, 20);
  tft.drawString("Microphone:", 180, 95);
  tft.drawString("Button:", 180, 165);
  tft.setTextSize(4);
  tft.drawString(String(x), 20, 45);
  tft.drawString(String(y), 20, 120);
  tft.drawString(String(z), 20, 190);
  tft.drawString(String(light), 180, 45);
  tft.drawString(String(mic), 180, 120);
  tft.drawString(String(button), 180, 190);
  delay(100);
}