Taking a break

 We're taking a break moving shop and hope to be back soon. We hope to start shipping orders in Nov 2018. 

µHex is the first low-power controller which is compatible with Arduino. It is very suitable for the battery power supply environment. A 210mAh CR2032 cell battery could make it work 60 days long.

As it is using Atmega 328 Microcontroller, it has good general and powerful performance. It packs 14 GPIO and 7 power ports (4 of them could be controlled) which could suit most of your project requirements.

Designed by maker Leo Yan.


  • Bootloader is write protected, please do not attempt to update Bootloader.
  • For large load applications (such as motor controlling), please connect VCC & GND directly or supply with independent power.


  • Hexagon design, compact size with 14 IO ports and 7 power ports
  • 4 switchable power supply interfaces to reduce power consumption
  • Two sleep-wake interfaces for convenient interactions with surrounding
  • Designated Arduino development libraries
  • Cross design in power and IO interfaces, directly supports 3 pin/4 pin sensor/actuator
  • Large welding plate design
  • 2.54 mm standard spacing plate


  • Microcontroller: ATmega328P; Board type: Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega328
  • Operating Voltage: 2.7 - 5V
  • Clock Frequency: 8MHz (RC)
  • Sleep Current: [email protected], [email protected] (watchdog OFF)
  • Flash: 32 KB ( 0.5KB for bootloader)
  • SRAM: 2 KB
  • EEPROM: 1 KB
  • Digital I/O Pins: 14 (PWM: 3,5,9,10,11)
  • Analog I/O Pins: 6
  • UART Interface: 1
  • I2C Interface: 1
  • Interrupt interface: 2
  • Solder Pad: 2mm/2.54mm
  • Power in port: 1
  • Power out port: 6 (4 of them could be turn-off)
  • Maximum Current: 2A
  • Dimension: 28 x 31 x 2.3 (mm)
  • Weight: 10g

Parts List

  • µHex Low-power Controller    x1

μHex - Low Power Controller

  • Brand: DFRobot
  • Product Code: DFR-DFR0343
  • Reward Points: 9
  • Availability: 2
  • £10.31

  • Ex Tax: £8.59
  • Price in reward points: 100

DFRduino Pro Mini v1.3 (16M5V328)

DFRduino Pro Mini v1.3 (16M5V328)


The 5V DFduino Pro Mini V1.3 (Arduino Pro Mini Compatible) is a microcontroller board based on the ...

Qty: 2

Nova Basic Kit (tiny Arduino)
Arduino Micro

Arduino Micro


The Arduino Micro is a microcontroller board based on the ATmega32u4.

Qty: 8

GEMMA v2 - Miniature Wearable Electronic Platform [1222]

GEMMA v2 - Miniature Wearable Electronic Platform [1222]


GEMMA is a tiny wearable platform board with a lot of might in a 1" diameter package. Powered by a ...

Qty: 3

Trinket - Mini Microcontroller - 3.3V Logic [1500]

Trinket - Mini Microcontroller - 3.3V Logic [1500]


Trinket is a tiny microcontroller board, built around the Atmel ATtiny85, a little chip with a lot ...

Qty: 5

SquareWear v2

SquareWear v2


SquareWear 2.0 is an open-source, Arduino-based wearable microcontroller board.


8pino - Minimalist's Arduino / Trinket Compatible
Flotilla - Dock

Flotilla - Dock


It uses the ATMEGA32A4U microcontroller to talk to the Flotilla modules and relay data to and from ...

Qty: 1