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PakMan project done during the last few hours of the MakeZurich hackathon using a Teensy 3.6, a HC05 BT module and interfacing a FMLR LoRa button from MiroMico emulating button presses
#include <Arduino.h>
#include <ArduinoJson.h>
#include <EEPROM.h>
#include <Snooze.h>
#include <Wire.h>
#include <sensirion_ess.h>
#define INTERVAL 1000
#define PIN_BT_EN 2
#define PIN_ISR 7
#define PIN_LORA 8
SensirionESS ess;
SnoozeDigital digital;
SnoozeTimer timer;
SnoozeBlock config(digital, timer);
void setup() {
Serial.begin(115200);
Serial.setTimeout(1000);
Serial1.begin(9600);
Serial2.begin(9600);
Serial2.setTimeout(1000);
pinMode(PIN_BT_EN, OUTPUT);
digitalWrite(PIN_BT_EN, HIGH);
pinMode(PIN_LORA, OUTPUT);
timer.setTimer(INTERVAL);
digital.pinMode(PIN_ISR, INPUT_PULLUP, FALLING);
// digital.pinMode(BT_ISR_PIN, INPUT_PULLUP, FALLING);
delay(1000);
Serial.print("Welcome to pakman\r\n");
ess.initSensors();
Serial.print(ess.getError());
Serial.println();
}
void loop() {
measure();
bt_loop();
Serial2.flush();
}
void measure() {
float temp, humidity, tvoc;
ess.measureIAQ();
ess.measureRHT();
temp = ess.getTemperature();
humidity = ess.getHumidity();
tvoc = ess.getTVOC();
Serial.print(temp);
Serial.print(" ");
Serial.print(humidity);
Serial.print(" ");
Serial.println(tvoc);
Serial2.println(tvoc);
if (humidity > 65.0f) {
lora(5000);
} else if (humidity > 45.0f) {
lora(200);
}
}
void lora(uint32_t d) {
digitalWrite(PIN_LORA, LOW);
delay(d);
digitalWrite(PIN_LORA, HIGH);
delay(10000);
}
void bt_loop() {
uint32_t start_time = millis();
for (;;) {
StaticJsonBuffer<512> jsonBuffer;
char buffer[128];
int len = Serial2.readBytesUntil('\n', buffer, sizeof(buffer));
if (len == 0) {
Serial2.readBytesUntil('\n', buffer, sizeof(buffer));
}
JsonObject &object = jsonBuffer.parseObject(buffer);
if (!object.success()) {
// Serial2.printf("waiting for json\r\n");
return;
}
const char *cmd = object["command"];
Serial2.println(cmd);
if (strcmp(cmd, "lora") == 0) {
lora(200);
}
if (millis() - start_time > INTERVAL) {
break;
}
}
}
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