The Seeed Studio XIAO ESP32C3 is a tiny, low-cost IoT board with the RISC-V based ESP32-C3 chip, 2.4GHz Wi-Fi and Bluetooth 5.0 (BLE). It is only 21 × 17.5mm, has a USB-C port and a battery charging circuit, which makes it ideal for small wireless sensors and wearables. Program it with Arduino IDE, MicroPython or ESP-IDF.
| Processor | ESP32-C3, 32-bit RISC-V single core, up to 160 MHz |
|---|---|
| Memory | 400KB SRAM, 4MB Flash |
| Wireless | 2.4GHz Wi-Fi + Bluetooth 5.0 (BLE) |
| I/O | 11 digital (PWM) pins, 4 analog pins, I2C, SPI, UART |
| USB | USB Type-C |
| Logic level | 3.3V |
| Size | 21 × 17.5 mm |
Is it 5V tolerant?
No, the I/O pins are 3.3V.
What is the difference from XIAO ESP32S3?
ESP32C3 is single-core RISC-V with less memory and lower price; ESP32S3 is dual-core with 8MB PSRAM for heavier tasks.
Can I buy the Seeed Studio XIAO ESP32C3 in Kanpur?
Yes – buy online with delivery across India, or pick it up from the iTechBuilders store, Damodar Nagar, Kanpur.
