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ESP32 MH-ET MiniKit — Compact ESP32 Dev Board for Breadboard Builds
The ESP32 MH-ET MiniKit Development Board is a compact, breadboard-friendly ESP32 board that includes the full ESP32 SoC, a CH340G USB-to-serial chip, and all passive components needed to start developing immediately. Plug it into your breadboard, connect a Micro-USB cable, and you have dual-core WiFi + Bluetooth development at your fingertips.
It mirrors the standard ESP32 DevKit pinout, so code and wiring guides written for the DevKit work directly on the MH-ET board — with the advantage of a slightly more compact footprint.
ESP32 MH-ET vs ESP32 DevKit CH9102 — which board to choose?
| Feature | ESP32 MH-ET (this board) | ESP32 DevKit CH9102 |
|---|---|---|
| USB chip | CH340G | CH9102 — newer, better macOS support |
Form factor| Compact MiniKit |
Standard 30-pin DevKit | |
| Pin count | Standard DevKit pinout | 30 pins exposed |
| Driver ease | CH340 driver required on macOS | CH9102 — often driverless on newer OS |
| Best for | Compact breadboard builds, Windows users | macOS/Linux users, newer OS compatibility |
Key features
- Dual-core ESP32: 240 MHz, WiFi + Classic BT + BLE in one chip
- CH340G USB-to-serial: Direct USB programming without extra hardware
- Breadboard friendly: Compact layout fits standard prototyping boards
- 34 GPIO pins: ADC, DAC, touch, UART, SPI, I2C, I2S, PWM, CAN
- 4 MB flash: Space for complex applications and OTA
- Arduino + ESP-IDF compatible: Use your preferred development framework
Technical specifications
| Core Chip | ESP32 (dual-core Xtensa LX6, up to 240 MHz) |
|---|---|
| USB Bridge | CH340G |
| Flash Memory | 4 MB |
| SRAM | 520 KB |
| WiFi | 802.11 b/g/n, 2.4 GHz |
| Bluetooth | Classic BT 4.2 + BLE |
| GPIO | 34 programmable pins |
| ADC | 18 × 12-bit channels |
| DAC | 2 × 8-bit |
| Power Input | Micro-USB or 3.3V pin |
| Logic Level | 3.3V |
Frequently Asked Questions
Is this compatible with standard ESP32 DevKit code? Yes. The pinout mirrors the standard ESP32 DevKit, so tutorials and libraries written for DevKit boards work directly.
Does it support BLE (Bluetooth Low Energy)? Yes. The ESP32 supports both Classic Bluetooth and BLE 4.2 simultaneously.
Do I need to install a driver? On Windows, CH340 drivers are often auto-installed. On macOS and Linux, you may need to install the CH340 driver manually.
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Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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