• Flexible MCU Module: Incorporates the ESP32-C3 32-bit RISC-V chip operating up to 160 MHz, mounted as a single-sided SMD module without through-hole headers, supported by Arduino/CircuitPython

• Outstanding RF performance: Implement complete Wi-Fi functions and Bluetooth Low Energy, while supporting communication over 100m with a U.FL antenna

• Elaborate Power Design: Provide 4 working modes as low as 44 μA in deep sleep mode, while supporting lithium battery charge management

• Perfect for Production: Breadboard-friendly & SMD design, no components on the back

Specification

Parameter

Description

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

Complete 2.4GHz Wi-Fi subsystem

Bluetooth 5.0/ Bluetooth mesh

On-chip Memory

400KB SRAM & 4MB Flash

Interface

1x UART, 1x IIC, 1x SPI,11x GPIO(PWM), 4x ADC

1x Reset button, 1x Boot button

Dimensions

21 x 17.8mm

Power

Circuit operating voltage: 3.3V@200mA

Charging current: 350mA/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

Working Temperature

-40°C ~ 85°C

Hardware Overview

• Onboard

• PinOut

Application

• Internet of Things

• Wearable devices

• Health monitoring

• Education

• Low-Power(LP) networking

• Rapid prototyping