Seeed Studio XIAO ESP32 C3

The Seeed Studio XIAO ESP32C3 is a very small board (21 × 17.8 mm) with the ESP32-C3 (RISC-V, 160 MHz), Wi-Fi and Bluetooth LE 5. An external antenna with U.FL connector is included. A 3.7 V LiPo battery can be connected to the solder pads on the back and is charged via USB-C with up to 380 mA. The board is programmed with Arduino, ESP-IDF or MicroPython.

Recommended Accessories:

• Seeed Studio Expansion Base for XIAO
• Seeed Studio Grove Base for XIAO

Features:

• ESP32-C3, RISC-V 32-bit up to 160 MHz
• 400 KB SRAM, 4 MB flash
• Wi-Fi 802.11 b/g/n 2.4 GHz, Bluetooth LE 5 and Bluetooth Mesh
• External antenna with U.FL connector included
• 11 GPIO with PWM, 4 of them analogue inputs; A3 is on ADC2 and according to Seeed measures unreliably, better use A0 to A2
• UART, I2C and SPI
• GPIO2, GPIO8 and GPIO9 are strapping pins: their level at start-up determines the boot mode
• USB-C, charging a 3.7 V LiPo battery with 380 mA
• Deep sleep approx. 44 µA
• Reset and boot buttons
• Pinout as an image in the picture gallery

Application Examples:

• Small sensor nodes with Wi-Fi
• Bluetooth devices with low power consumption
• Projects with little space
• Integration into Home Assistant with ESPHome

Documentation:

• XIAO ESP32C3 wiki (Seeed Studio)
• ESPHome documentation: ESP32 Platform

Technical Data:

• Manufacturer: Seeed Studio
• Manufacturer SKU: 113991054
• Chip: ESP32-C3
• CPU: RISC-V 32-bit, 160 MHz
• SRAM: 400 KB
• Flash: 4 MB
• Wi-Fi: IEEE 802.11 b/g/n, 2.4 GHz
• Bluetooth: LE 5, Mesh
• I/O: 11 GPIO with PWM, 4 analogue inputs
• Interfaces: UART, I2C, SPI
• Supply: 5 V via USB-C, battery 3.7 V
• Logic voltage: 3.3 V
• Charging current: 380 mA
• Deep sleep: approx. 44 µA
• Operating temperature: -40 to 85 °C
• Dimensions: 21 × 17.8 mm
• Weight: 4 g

Scope of Delivery:

• 1× Seeed Studio XIAO ESP32 C3
• 1× antenna with U.FL connector