DFRobot μHex - Low Power Controller

by DFRobot

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.

Note:

  • 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.

Features

  • 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

Specification

  • 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: 0.12uA@3V3， 0.16uA@5V （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

Documents