Espressif · ESP32
ESP32-C3 DevKitM-1
A low-cost, low-power RISC-V ESP32 with Wi-Fi and BLE 5 — the sensible pick for simple connected gadgets and battery nodes.
Wi-FiBLE3.3 V logicBreadboard
Typical price
$9
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Specifications
| Maker | Espressif |
|---|---|
| Chip | ESP32-C3-MINI-1 |
| 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 | 15 usable |
| ADC | 6 channels, 12-bit |
| DAC | None |
| Flash | 4 MB |
| RAM | 400 KB |
| Logic level | 3.3 V |
| Power input | 5V USB |
| Deep sleep (typ.) | ~5 µA |
| Active current (typ.) | ~60 mA |
| Form factor | Breadboard |
| USB | Micro-USB (+ native USB serial/JTAG) |
| Programming | Arduino, MicroPython, ESP-IDF, PlatformIO |
| Released | 2020 |
Typical values. Sleep current is approximate; whole-board numbers are higher than the bare chip's datasheet figure.
Pros
- Cheap and efficient — great deep-sleep numbers
- BLE 5 with long-range (coded PHY) support
- Open RISC-V core with a well-supported toolchain
Cons
- Only ~15 usable GPIOs
- Single core, 160 MHz
- No DAC and just 5–6 ADC channels
Best use cases
- 01Battery-powered sensor nodes
- 02BLE peripherals
- 03Smart plugs and relays
- 04Simple Wi-Fi dashboards
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