Features: The Double-MCU Board integrates RP2040 and ESP32C3, offering powerful functionality and flexibility. The RP2040 features double-cores ARM Cortex-M0+ processors and can run independently. The ESP32C3 supports WiFi802.11 and wirelessV4.2+BLE and can be used as a standalone MCU. The ESP32C3 and RP2040 on this board can communicate and exchange data through UARTserial communication. This mean that you can enable WiFi functionality on the RP2040 by utilizing the ESP32C3 WiFi and wireless capabilities. Specifications: Material:PCB Double MCU: RP2040: Double-cores ARM Cortex-M0+ FLASH: 4MB ESP32C3: Support WiFi802.11, WirelessV4.2+BLE + FLASH: 4MB Onboards functions: 2 buttons for RP2040 2 buttons for ESP32C3 1 user LED for RP2040 1 user LED for ESP32C3 onboards switching is used to switching the USB connection to either RP2040 or ESP32 Note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xDevelopment Board