I think the used library of the OLED does set the I2C frequency. Good catch. The MLX90614 is a low speed device (100KHz max). The OLED plugin is most likely initializing the i2c bus to the default 700KHz. - Thomas Yes.. The I2C speed is defined in SSD1306Wire.h at line 52 : Wire.setClock(700000); W...

I hope you got the latest sources from github? When using a Normal build of ESPEasy, both plugins P024 and P036 are included, so no need to make a custom build for that :o Latest releases (compiled binaries and matching source code) can always be found here: https://github.com/letscontrolit/ESPEasy...

Hi . I made custom build using latest sources and included "P024_MLX90614" and 'P036_FrameOLED". Both using I2C bus. Upload to LiLon NodeMCU V3. Changed I2C clock speed to 100 kHz so MLX90614 can work correct. Each of devices work OK , but when enable it together P024 stop reading tem...

I bought few Wemos D1-Mini boards and all of them have connection to USB problems. Found some posts over the internet, but no real solution. When I look in datasheet of CH340 I see that at pin16 of chip is VCC (5v from USB), but on the board this pin is connected to 3,3V. The simplest modification i...