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Timm Bogner 2022-03-10 08:04:48 -06:00 committed by GitHub
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82
Sensors/BME280_8266/BME280_8266.ino
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// FARM DATA RELAY SYSTEM
//
// BME280 SENSOR MODULE
//
// Developed by Timm Bogner (bogner1@gmail.com) for Sola Gratia Farm in Urbana, Illinois, USA.
// Each reading is assigned a two-byte identifier along with a one-byte sensor type
//
#define READING_ID 63 //Unique integer for each data reading
#define SLEEPYTIME 30 //Time to sleep in seconds
#define GTWY_MAC 0x00 //Gateway MAC
#include <ESP8266WiFi.h>
#include <espnow.h>
#include <Adafruit_BME280.h>
#include "DataReading.h"
Adafruit_BME280 bme; //0x76
uint8_t broadcastAddress[] = {0xAA, 0xBB, 0xCC, 0xDD, 0xEE, GTWY_MAC};
int wait_time = 0;
void OnDataSent(uint8_t *mac_addr, uint8_t sendStatus) {
Serial.print("Last Packet Send Status: ");
if (sendStatus == 0) {
Serial.println("Delivery success");
}
else {
Serial.println("Delivery fail");
}
}
void setup() {
Serial.begin(115200);
WiFi.mode(WIFI_STA);
Wire.begin();
while (!bme.begin(0x76)) {
delay(10);
}
Serial.println("bme INIT");
if (esp_now_init() != 0) {
return;
}
esp_now_set_self_role(ESP_NOW_ROLE_CONTROLLER);
esp_now_register_send_cb(OnDataSent);
// Register peer
esp_now_add_peer(broadcastAddress, ESP_NOW_ROLE_SLAVE, 1, NULL, 0);
}
void loop() {
if (millis() > wait_time) {
wait_time = wait_time + SLEEPYTIME * 1000;
loadData();
}
}
void loadData() {
float bme_temp = bme.readTemperature();
float bme_pressure = (bme.readPressure() / 100.0F);
//float bme_altitude = bme.readAltitude(1013.25);
float bme_humidity = bme.readHumidity();
Serial.println(bme_temp);
DataReading Temp;
Temp.d = bme_temp;
Temp.id = READING_ID;
Temp.t = 1;
DataReading Hum;
Hum.d = bme_humidity;
Hum.id = READING_ID;
Hum.t = 2;
DataReading Pres;
Pres.d = bme_pressure;
Pres.id = READING_ID;
Pres.t = 3;
DataReading thePacket[3];
thePacket[0] = Temp;
thePacket[1] = Hum;
thePacket[2] = Pres;
esp_now_send(broadcastAddress, (uint8_t *) &thePacket, sizeof(thePacket));
}

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Sensors/BME280_8266/DataReading.h
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typedef struct DataReading {
float d;
uint16_t id;
uint8_t t;
} DataReading;