MicroHex Low-power Controller

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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 2.3mm(1.10 x 1.22 x 0.09)
• Weight: 10g

Documents

• WIKI (μHex - Low Power Controller)
• Schematic 
• Layout 
• Arduino library 

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