Generic (Nologo / AI-Thinker clones) · ESP32
ESP32-C3 SuperMini
A thumb-sized Wi-Fi + BLE board for about $3. It is the cheapest way into modern ESP32 development — with a few clone-quality quirks.
Wi-FiBLE3.3 V logicTiny
Typical price
$3
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Specifications
| Maker | Generic (Nologo / AI-Thinker clones) |
|---|---|
| Chip | ESP32-C3FH4 |
| CPU | RISC-V single-core |
| Clock speed | 160 MHz |
| Wi-Fi | Wi-Fi 4 (802.11 b/g/n) |
| Bluetooth | Bluetooth 5 (LE) |
| Zigbee / Thread radio | No |
| GPIO pins | 13 usable |
| ADC | 5 channels, 12-bit |
| DAC | None |
| Flash | 4 MB |
| RAM | 400 KB |
| Logic level | 3.3 V |
| Power input | 5V USB-C or 3.3–6V |
| Deep sleep (typ.) | ~45 µA |
| Active current (typ.) | ~60 mA |
| Form factor | Tiny |
| USB | USB-C (native) |
| Programming | Arduino, MicroPython, ESP-IDF |
| Released | 2023 |
Typical values. Sleep current is approximate; whole-board numbers are higher than the bare chip's datasheet figure.
Pros
- Absurdly cheap
- Very small, breadboard-friendly
- USB-C with native USB serial
Cons
- Antenna layout on some batches gives weak Wi-Fi range
- Pin labels vary between sellers
- Board-level sleep current is higher than the bare chip
Best use cases
- 01Tiny Wi-Fi sensors
- 02Disposable prototypes
- 03BLE keyboards and beacons
- 04Wearable or wall-mounted gadgets
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