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Development Board, ATMEGA16 4 MCU, 4x Relays, Opto Isolated Digital Inputs, Automation Projects


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AVR-IO-M16   Datasheet
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Technical Documents (2)

CAD Downloads


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CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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Product Overview

The AVR-IO-M16 is an ATMega16-16AI development board. The board is small but powerful for small automation projects. The board have four relays with 10A/250VAC current switching capabilities, four opto isolated digital inputs and RS 232 port.
  • ATMega16-16AI AVR microcontroller
  • ICSP 5x2pin connector for in CKT programming
  • Reset IC ZM33064
  • Quartz crystal oscillator circuit 16MHz
  • Voltage regulator 5V, 7805 and filtering capacitors
  • RS 232 DB9 female connector , RS 232 and interface circuit with Tx, Rx signals
  • Four opto coupler isolated inputs with screw terminals
  • Four relay outputs with 5A/250VAC contacts with screw terminals
  • Output status LEDs


Building Automation, Wireless, Sensing & Instrumentation


The AVR-IO-M16 board must not be subject to high electrostatic potentials. General practice for working with static sensitive devices should be applied when working with this board.

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