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.
Maker Go ESP32-C5-EVB specifications:
- Wireless module – DOIT ESPC5-32 module
- SoC – Espressif Systems ESP32-C5
- CPU
- Single-core 32-bit RISC-V processor @ up to 240 MHz
- Low-power RISC-V core @ 40 MHz acting as the main processor for power-sensitive applications
- Memory – 384 KB SRAM on-chip, support for external PSRAM
- Storage – 320 KB ROM, support for external flash
- Connectivity
- Dual-band 802.11ax WiFi 6 in the 2.4GHz and 5 GHz bands, with 802.11b/g/n WiFi 4 standard support for backward compatibility
- Bluetooth 5.0 Low Energy (LE)
- 802.15.4 radio for Zigbee 3.0, Thread 1.3, and Matter
- CPU
- Storage – 4MB SPI flash
- PCB antenna
- SoC – Espressif Systems ESP32-C5
- USB – USB Type-C port for programming and JTAG debugging
- I/Os and expansion
- 4x relays (10A/240VAC) with 3-pin terminal blocks
- 4x optoisolated inputs for DC voltage up to 30VDC
- RS485 terminal block
- 2x UEXT connectors
- Debugging/Programming – ESP-DEBUG connector suitable for ESP-PROG
- Misc
- Reset and user buttons
- User LED
- Power Supply – 4.5 – 40V DC input via DC jack or 2-pin terminal block
- Dimensions – 12.2 x 8.7 cm
The company provides PDF schematics and Arduino sketches for RS485, relays, and opto-isolated inputs on a wiki on ICBBuy, where the board is also known as ESP32-C5-EVBPlus.
A DIN rail mountable shell/enclosure is also offered with the board, and it looks to be the same as the one used with the previous ESP32-C6-EVB model.
I first found the Maker Go ESP32-C5-EVB on AliExpress for $21.15. However, that’s for the board only, and the company sells the DIN rail enclosure for $7.12. Alternatively, you’ll find the board and a board+shell combo on Tindie for $14.95 and $20.95, respectively.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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