I am making a project using a BMP280 sensor connect to an ESP-01 board.
I am using I2C communication.
But it does not work. I think ESP-01 is not booting. I made a test with a LED and it did not execute loop code.
I use the following code:
#include <Wire.h>
//#include <SPI.h>
#include <Adafruit_BMP280.h>
/*
#define BMP_SCK (13)
#define BMP_MISO (12)
#define BMP_MOSI (11)
#define BMP_CS (10)
*/
Adafruit_BMP280 bmp; // I2C
//Adafruit_BMP280 bmp(BMP_CS); // hardware SPI
//Adafruit_BMP280 bmp(BMP_CS, BMP_MOSI, BMP_MISO, BMP_SCK);
void setup() {
Serial.begin(115200);
Serial.println(F("BMP280 test"));
if (!bmp.begin()) {
Serial.println(F("Could not find a valid BMP280 sensor, check wiring!"));
while (1);
}
/* Default settings from datasheet. */
bmp.setSampling(Adafruit_BMP280::MODE_NORMAL, /* Operating Mode. */
Adafruit_BMP280::SAMPLING_X2, /* Temp. oversampling */
Adafruit_BMP280::SAMPLING_X16, /* Pressure oversampling */
Adafruit_BMP280::FILTER_X16, /* Filtering. */
Adafruit_BMP280::STANDBY_MS_500); /* Standby time. */
pinMode(1, OUTPUT);
Wire.begin(2, 0);
}
void loop() {
digitalWrite(1, HIGH);
Serial.print(F("Temperature = "));
Serial.print(bmp.readTemperature());
Serial.println(" *C");
Serial.print(F("Pressure = "));
Serial.print(bmp.readPressure());
Serial.println(" Pa");
Serial.print(F("Approx altitude = "));
Serial.print(bmp.readAltitude(1013.25)); /* Adjusted to local forecast! */
Serial.println(" m");
Serial.println();
delay(1000);
digitalWrite(1, LOW);
delay(1000);
}
This is the diagram. LED connected to GPIO1 does not appear in the diagram.
I hope you can help me.
Thanks.