Seeed XIAO ESP32C3

The Seeed XIAO ESP32C3 has a highly-integrated ESP32-C3 chip, built around a 32-bit RISC-V chip processor with a four-stage pipeline that operates at up to 160 MHz.

The board equips highly-integrated ESP32-C3 SoC. The chip has been installed with a complete 2.4GHz Wi-Fi subsystem which means it supports Station mode, SoftAP mode, SoftAP & Station mode, and promiscuous mode for multiple Wi-Fi applications. It works under an ultra-low power state, also supporting features of Bluetooth 5 and Bluetooth mesh. There are 400 KB SRAM & 4 MB Flash on the chip, allowing for more programming space, and bringing more possibilities to the IoT control scenarios.

Being a member of the Seeed XIAO family, the board maintains the classic thumb-sized form-factor design and single-sided component mounting. Meanwhile, it is equipped with a battery charge chip and integrated circuit. This board comes included with an external antenna to increase the signal strength for wireless applications. There are 11 digital I/O that can be used as PWM pins and 4 analogue i/o that can be used as ADC pins. It supports UART, IIC, and SPI serial communication ports, also including IIS (Internet Information Services).

Note: This product comes with 1x antenna, but NO headers

Features

• Outstanding RF performance: Powerful ESP32-C3 SoC and U.FL antenna provided that supports WiFi/Bluetooth connection over 100m
• Thumb-size Design: 21 x 17.5mm overall dimension, portable and lightweight
• Low power consumption: Lowest as 44 μA (deep sleep mode), with 4 working modes available
• Onboard battery charge IC: Supports battery charging, great for various wearable scenarios and wireless IoT applications
• Product number: Seeed 113991054

Specifications

• Processor: ESP32-C3 SoC - RISC-V single-core 32-bit chip processor with a four-stage pipeline that operates at up to 160 MHz
• Wireless: Wireless Complete 2.4GHz Wi-Fi subsystem
  • Bluetooth 5.0/ Bluetooth mesh
• On-Chip Memory: 400KB SRAM & 4MB Flash
• Interface: 1x UART, 1x IIC, 1x IIS, 1x SPI,11x GPIO(PWM), 4x ADC, 1x Reset button, 1x Boot button
• Dimensions: 21 x 17.5mm
• Power Circuit operating voltage: 3.3V@200mA, Charging current: 50mA/100mA, Input voltage (VIN): 5V
• Deep Sleep Power Consumption: Deep Sleep Model: >44 μA
• Wi-Fi Enabled Power Consumption Active Model: <75 mA
  • Modem-sleep Model: <25 mA
  • Light-sleep Model: <4 mA
• BLE Enabled Power Consumption Modem-sleep Model: <27 mA
  • Light-sleep Model: <10 mA
• Product number: Seeed 113991054

Resources

• XIAO ESP32 Pinout
• ESP32-C3 Datasheet
• Report of Low Power Consumption
• XIAO ESP32C3 Bottom pad positioning

Pinout