Doit esp32 devkit v1 fritzing8/24/2023 I tried it for many WEEKS in my spare time, and, I have finally succeeded. However, it is not the same case for ESP32. I2C programming in Arduino Uno or Nano is simple, easy and straight forward. (*) The most difficult issue in programming I2C using ESP32 is probably the POWER issue. Here, I use only VCC, GND, SCL, SDA on GY-88, and VIN, GND, 21(SDA) 22(SCL) from ESP32. * I can't find my ESP32 Do-it DevKit and GY-88 Fritzing module, so I have used similar ones to draw. I have used GY-88 (MPU6050, HMC5338L, BMP085 ) module in this experiment. Now I can do some serious work with this module. Just u ntil I succeed, I thought ESP32 is piece of junk made only for wifi since it wasn't any useful at all. (*) It took me weeks to succeed in programming I2C for ESP32. Original MPU-6050 or GY-521 has INT pin that needs to be connected also.) I have used GY-88, but you can not do this with separate MPU-6050 or GY-521. (Testing with MPU-6050 3-axis Gyro, Accels, Temperature. I2C Test with my ESP32 Do-IT DevKit using Arduino IDE
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