Seeed XIAO ESP32C3

Seeed Studio XIAO ESP32C3 is an IoT mini development board based on the Espressif ESP32-C3 WiFi/Bluetooth dual-mode chip. ESP32-C3 is a 32-bit RISC-V CPU, which includes an FPU (Floating Point Unit) for 32-bit single-precision arithmetic with powerful computing power. It has excellent radio frequency performance, supporting IEEE 802.11 b/g/n WiFi, and Bluetooth 5 (LE) protocols. This board comes included with an external antenna to increase the signal strength for your wireless applications. It also has a small and exquisite form-factor combined with a single-sided surface-mountable design. It is equipped with rich interfaces and has 11 digital I/O that can be used as PWM pins and 3 analog I/O that can be used as ADC pins. It supports four serial interfaces such as UART, I2C and SPI. There is also a small reset button and a bootloader mode button on the board. XIAO ESP32C3 is fully compatible with the Grove Shield for Seeeduino XIAO and Seeeduino XIAO Expansion board except for the Seeeduino XIAO Expansion board, the SWD spring contacts on the board will not be compatible.

With regard to the features highlighted above, XIAO ESP32C3 is positioned as a high-performance, low-power, cost-effective IoT mini development board, suitable for low-power IoT applications and wireless wearable applications.

Features:

• Flexible MCU Board: Incorporate the ESP32-C3 32-bit RISC-V chip, operating up to 160 MHz, mounted multiple development ports, 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
• Thumb-sized Design: 21 x 17.8mm, Seeed Studio XIAO series classic form factor and elegant productization of single-sided components mounting, suitable for wearable devices
• Perfect for Production: Breadboard-friendly & SMD design, no components on the back

 In the Box

Files

• XIAO ESP32 Wiki
• XIAO ESP32 Pinout
• ESP32-C3 Datasheet
• Report of Low Power Consumption
• XIAO ESP32C3 Bottom pad positioning
• XIAO ESP32C3 ROHS
• Schematic Diagram & PCB
• XIAO Reference Design
• 3D Printing "Case" Studies

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 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