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Frequently Asked Questions (FAQ)

This section answers the most common questions about the installation and use of Unit Electronics development boards.

How do I install the support packages in Arduino IDE?

Follow these steps:

  1. Open Arduino IDE.
  2. Go to File > Preferences.
  3. In Additional Board Manager URLs, add the corresponding URL:
https://raw.githubusercontent.com/UNIT-Electronics/Uelectronics-ESP32-Arduino-Package/main/package_Uelectronics_esp32_index.json
  1. Save and then install the boards from Tools > Board > Board Manager.

How do I select the correct board in Arduino IDE?

  • Go to Tools > Board and select the one you want to program.
  • For DualMCU-ONE, choose "DualMCU-ONE (ESP32 + RP2040)".
  • For Cocket Nova CH552, choose "Cocket Nova CH552".

Arduino IDE does not recognize the board, what should I do?

  • Make sure the USB drivers are installed from: https://www.wch-ic.com/downloads/CH341SER_EXE.html
  • Try another USB cable or connection port.
  • Restart the IDE and check if the board appears in Tools > Port.

How do I report a problem or error in the installation?

You can report a problem in the Unit Electronics GitHub repository: github issues