Fritzing esp32 devkit3/6/2024 ![]() The pins on the board should be in the same place as the header beside it as one is supposed to connect to the other. The following files are parts files exported from Fritzing, having been created within the Fritzing Parts Editor (using artwork prepared in Adobe Illustrator). There should be a terminalId=“connector3terminal” added to the schematic connector entry above. In the current fzp file many of the pins lack the terminalId definition causing the above problem. Where each connector has a terminalId called connectorxterminal which is also in the schematic svg. When using the ESP32 with the Arduino IDE, the default I2C pins are: GPIO 21 (SDA) GPIO 22 (SCL) If you want to use other pins when using the wire library, you just need to call: Wire. ![]() The ESP32 has two I2C channels and any pin can be set as SDA or SCL. The wires are connecting to the center of the pin because the terminalIds are not correct (missing completely in some cases.) The fzp file should look like this: Learn how to use ESP32 PWM with Arduino IDE: ESP32 PWM with Arduino IDE.
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