Maker Go ESP32-C5-EVB is an ESP32-C5 board with four relays, four opto-isolated inputs, RS-485 communication, and support for Wi-Fi 6, Bluetooth Low Energy 5.0, and Thread/Zigbee connectivity. It’s a variant of the Maker Go ESP32-C6-EVB released in 2024 that replaces the ESP32-C6 module with an ESP32-C5 module and a GPIO header with a terminal block for RS-485. The Maker Go ESP32-C6-EVB was mostly a clone of the Olimex ESP32-C6-EVB, and while Olimex already released its own ESP32-C5-EVB, it has a different dual-channel relay design. I first found the Maker Go ESP32-C5-EVB on AliExpress for $21.15. We also use affiliate links in articles to earn commissions if you make a purchase after clicking on those links.