I tried a couple of different scenarios.
1.) The above test...FAILED.
2.) The LoRa board and a DHT11...it worked.
3.) ESP-WROOM 32 and the DHT11, it worked.
4.) ESP-WROOM 32 and a bme680 using I2c pins, it worked.
Tests 1 & 4 used the same code.
First it all the code works. I can send and receive messages between two LoRa32 boards,
I can connect the bme680 and run the test sketch with serial output OK.
Without changing any hardware, pins etc. I load the lora code with the bme added to it and it loads BUT it fails the bme read.
Code: Select all
#include <Adafruit_Sensor.h>
#include "Adafruit_BME680.h"
//Libraries for LoRa
#include <SPI.h>
#include <LoRa.h>
//Libraries for OLED Display
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
//define the pins used by the LoRa transceiver module
#define SCK 5
#define MISO 19
#define MOSI 27
#define SS 18
#define RST 14
#define DIO0 26
//433E6 for Asia
//866E6 for Europe
//915E6 for North America
#define BAND 915E6
//OLED pins
#define OLED_SDA 4
#define OLED_SCL 15
#define OLED_RST 16
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
//packet counter
int counter = 0;
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RST);
#define I2CSDA 21
#define I2CSCL 13
#define SEALEVELPRESSURE_HPA (1013.25)
TwoWire I2CPin = TwoWire(0);
Adafruit_BME680 bme; // I2C
float temperature;
float humidity;
float pressure;
bool status1;
String LoRaMessage = "";
void setup() {
Serial.begin(115200);
//reset OLED display via software
pinMode(OLED_RST, OUTPUT);
digitalWrite(OLED_RST, LOW);
delay(20);
digitalWrite(OLED_RST, HIGH);
//initialize OLED
Wire.begin(OLED_SDA, OLED_SCL);
if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3c, false, false)) { // Address 0x3C for 128x32
Serial.println(F("SSD1306 allocation failed"));
for(;;); // Don't proceed, loop forever
}
display.clearDisplay();
display.setTextColor(WHITE);
display.setTextSize(1);
display.setCursor(0,0);
display.print("LORA SENDER ");
display.display();
//SPI LoRa pins
SPI.begin(SCK, MISO, MOSI, SS);
//setup LoRa transceiver module
LoRa.setPins(SS, RST, DIO0);
if (!LoRa.begin(BAND)) {
Serial.println("Starting LoRa failed!");
while (1);
} bool status;
display.setCursor(0,10);
display.print("LoRa Initializing OK!");
display.display();
delay(2000);
I2CPin.begin(I2CSDA, I2CSCL, 100000);
bool status1 = bme.begin(0x77, &I2CPin);
if (!status1) {
Serial.println("[b]Could not find a valid BME280_1 sensor, check wiring!"[/b]);
} else {
// Set up oversampling and filter initialization
bme.setTemperatureOversampling(BME680_OS_8X);
bme.setHumidityOversampling(BME680_OS_2X);
bme.setPressureOversampling(BME680_OS_4X);
bme.setIIRFilterSize(BME680_FILTER_SIZE_3);
bme.setGasHeater(320, 150); // 320*C for 150 ms
}
}
void loop() {
if (!bme.performReading()) {
LoRaMessage = String("BME680 Read Failed: ") + String(counter);
//Send LoRa packet to receiver
LoRa.beginPacket();
LoRa.print(LoRaMessage);
LoRa.endPacket();
display.clearDisplay();
display.setCursor(0,0);
display.println("LORA SENDER");
display.setCursor(0,20);
display.setTextSize(1);
display.print("LoRa packet sent.");
display.setCursor(0,30);
display.print("Counter:");
display.setCursor(50,30);
display.print(counter);
display.display();
} else {
temperature = bme.temperature;
humidity = bme.humidity;
pressure = bme.pressure/100.00;
LoRaMessage = String(temperature) + "* " + String(humidity) + "% " +String(pressure) + "^ " + String(counter);
//Send LoRa packet to receiver
LoRa.beginPacket();
LoRa.print(LoRaMessage);
LoRa.endPacket();
display.clearDisplay();
display.setCursor(0,0);
display.println("LORA SENDER");
display.setCursor(0,20);
display.setTextSize(1);
display.print("LoRa packet sent.");
display.setCursor(0,30);
display.print("Counter:");
display.setCursor(50,30);
display.print(counter);
display.display();
}
counter++;
delay(10000);
}rst:0x1 (POWERON_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:1184
load:0x40078000,len:13260
load:0x40080400,len:3028
entry 0x400805e4
Could not find a valid BME280_1 sensor, check wiring!
I have read many posts on the LoRa32 and I2C and would like to chain multiple I2C sensors to do some tests but I need to get one working first....
So why does the ESP-WROOM32 work and the TTGO LoRa32 does not...
I know they are two different boards BUT they are both based on the same technology.
Any suggestions...Thanks
