• 1 x RS485 receiver.
• 1 x CAN receiver.
• 1 x TF card connector.
• 1 x WS2812 RGB LED light.
• 8 x Reserved programmable GPIO.

• Click "File" in the upper left corner -> Preferences -> Additional Development >Board Manager URL -> Enter the URL in the input box https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json

• Click OK and the software will be installed by itself. After installation, restart the Arduino IDE software.

• Arduino Setting

• PlatformIO plug-in installation: Click on the extension on the left column -> search platformIO -> install the first plug-in
• Click Platforms -> Embedded -> search Espressif 32 in the input box -> select the corresponding firmware installation

1. CAN bus protocol does not work properly.

• A:Depending on the ESP32 chip, the CAN controller register IER parameter needs to be changed. If it is a V3 version chip, you can use 0xEF, otherwise, use 0xFF.