arduino › microcontroller board
generic ESP32-C3 SuperMini
Cheapest credible WiFi+BLE board. Single-core RISC-V, only 11 usable GPIO. Ships under many brand names; quality control varies — buy from a vendor with returns.
Specifications
- mcu chip
- esp32_c3
- clock mhz
- 160
- flash kb
- 4096
- sram kb
- 400
- wifi
- yes
- wifi band
- 2_4ghz
- bluetooth
- ble
- usb
- type_c
- gpio count
- 11
- analog inputs
- 4
- pwm pins
- 6
- i2c
- yes
- spi
- yes
- uart count
- 2
- operating voltage v
- 3.3
- input voltage range v
- 5
- power pins
- 3v3, 5v
- firmware compat
- arduino_ide, esp_idf, micropython, platformio
- ai accelerator
- none
- form factor
- mini
Sources
- SparkFun open product catalog · ingest 2026-05-06