- MCP23017 (CJMCU-2317 board) - Example of usage - GPIO ports expander. The module available at Aliexpress.
- SIM800C board - Example of usage - 2G GSM board SIM800C. The module available at Aliexpress.
- RS485 (XY-017 board) - Example of usage- RS485 interface board. The module available at Aliexpress.
- XY-ItoV - Example of usage - Current 4..20 mA to voltage board. The module available at Aliexpress.
- SIM800L - 2G GSM board SIM800L. The module available at Aliexress.
- MH-ET Live ESP32 Devkit 38 pins - The module available at Aliexpress.
- GY-ADS1115 (cherry board) - The module available at Aliexpress.
- RS485 (MAX3485 chip) - Example of usage - Inexpensive RS485 board. The module available at Aliexpress.
- MAX31855. MAX31855. Example of usage. The module available at Aliexpress.
- ESP32 chip.
- LuaNode32_ESP32_30pins.
- NodeMCU_ESP8266.
- ADS1115 (blue board). The module available at Aliexpress.
- MCP23017 extender (blue board).