ESP32-C5 Development Boards
The ESP32-C5 is Espressif's first dual-band Wi-Fi 6 chip, adding a 5 GHz radio alongside the usual 2.4 GHz band. It pairs a single-core 32-bit RISC-V CPU running up to 240 MHz with Bluetooth 5 (LE) and an 802.15.4 radio for Thread and Zigbee.
In practice it is a 5 GHz-capable sibling of the ESP32-C6, well suited to less congested 5 GHz networks, Matter devices, and higher-throughput IoT links. After a long pre-release period it now ships on development boards such as the ESP32-C5-DevKitC-1 and Seeed XIAO ESP32-C5, with support in ESP-IDF (v5.5+).
Specifications
Datasheet ↗Compute
Connectivity
Peripherals
Strapping & reserved pins
7 pins to knowSome pins are reserved for boot strapping, JTAG, USB and flash - misusing them can cause boot failures or programming issues. The category colours below match the table.
| Pin | Label | Why avoid | Category |
|---|---|---|---|
| GPIO28 | GPIO28 | Must stay HIGH at reset for normal SPI boot; pulling it LOW forces joint download (flashing) mode. Free to use as GPIO after reset. | Strapping |
| GPIO27 | GPIO27 / VDD_SPI | Held HIGH at reset for normal boot; it also powers external flash by default, so driving it can change the boot mode / ROM-log output or cut flash power. | Strapping |
| GPIO26 | GPIO26 | Sampled at reset for boot mode; avoid holding it at a fixed level during boot unless intentionally selecting download mode. Free after reset. | Strapping |
| GPIO25 | GPIO25 | Latched at reset to set SDIO clock-edge behaviour; avoid driving at boot unless configuring SDIO timing. Free as GPIO after reset. | Strapping |
| GPIO7 | GPIO7 (JTAG_SEL) | Must be driven to a defined level by external circuitry at reset (never left floating) to select the JTAG source; free as GPIO afterwards. | JTAG |
| MTDI | MTDI | Part of the JTAG interface and sampled at reset; avoid using as GPIO when JTAG debugging or SDIO is in use. | JTAG |
| MTMS | MTMS | Part of the JTAG interface and latched at reset; avoid using as GPIO if JTAG debugging is needed. | JTAG |
ESP32-C5 modules & revisions
3 variants
ESP32-C5 boards
0 boardsNo ESP32-C5 boards documented yet - browse all ESP32 boards →