esp8266 NodeMCU абсолютно не видит датчик, как бы я его не подключал, он не видим для esp8266. Проверял двумя разными чекерами, оба не видят esp8266. Я бы и списал на бракованный датчик, но это уже 4 датчик который не работает, причем не работает на двух esp8266
#include <Wire.h>
void setup()
{
Wire.begin();
Serial.begin(9600);
while (!Serial); // Leonardo: wait for serial monitor
Serial.println("\nI2C Scanner");
}
void loop()
{
byte error, address;
int nDevices;
Serial.println("Scanning...");
nDevices = 0;
for(address = 1; address < 127; address++ )
{
// The i2c_scanner uses the return value of
// the Write.endTransmisstion to see if
// a device did acknowledge to the address.
Wire.beginTransmission(address);
error = Wire.endTransmission();
if (error == 0)
{
Serial.print("I2C device found at address 0x");
if (address<16)
Serial.print("0");
Serial.print(address,HEX);
Serial.println(" !");
nDevices++;
}
else if (error==4)
{
Serial.print("Unknown error at address 0x");
if (address<16)
Serial.print("0");
Serial.println(address,HEX);
}
}
if (nDevices == 0)
Serial.println("No I2C devices found\n");
else
Serial.println("done\n");
delay(5000); // wait 5 seconds for next scan
}
и второй чекер i2c
*void scanPorts() {*
*for (uint8_t i = 0; i < sizeof(portArray); i++) {*
*for (uint8_t j = 0; j < sizeof(portArray); j++) {*
*if (i != j){*
*Serial.print("Scanning (SDA : SCL) - " + portMap[i] + " : " + portMap[j] + " - ");*
*Wire.begin(portArray[i], portArray[j]);*
*check_if_exist_I2C();*
*}*
*}*
*}*
*}*
*//This code is a modified version of the code posted on the Arduino forum and other places*
*void check_if_exist_I2C() {*
*byte error, address;*
*int nDevices;*
*nDevices = 0;*
*for (address = 1; address < 127; address++ ) {*
*// The i2c_scanner uses the return value of*
*// the Write.endTransmisstion to see if*
*// a device did acknowledge to the address.*
*Wire.beginTransmission(address);*
*error = Wire.endTransmission();*
*if (error == 0){*
*Serial.print("I2C device found at address 0x");*
*if (address < 16)*
*Serial.print("0");*
*Serial.print(address, HEX);*
*Serial.println(" !");*
*nDevices++;*
*} else if (error == 4) {*
*Serial.print("Unknow error at address 0x");*
*if (address < 16)*
*Serial.print("0");*
*Serial.println(address, HEX);*
*}*
*} //for loop*
*if (nDevices == 0)*
*Serial.println("No I2C devices found");*
*else*
*Serial.println("**********************************\n");*
*}*
