PCB for ATmega328 3-Relay Access Control Board
Part number: ATMEGA328Breadboards, PCBs & Enclosures
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Prices updated: 13 Oct 2026
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About this product
A bare PCB for building an ATmega328-based access control board with three relays. The listing includes the bill of materials and a soldering guide, making it suitable for door and switching projects where you solder the parts yourself.
Specifications
- Board type
- Bare PCB
- Microcontroller
- ATmega328
- Relay channels
- 3
- Included documents
- Bill of materials and soldering guide
Frequently asked questions
Is this board fully assembled?
No. It is a bare PCB, so you need to solder the components yourself using the bill of materials and soldering guide included with the listing.
Which microcontroller does the board use?
The board is built around the ATmega328. Check the bill of materials to confirm the exact microcontroller variant and the supporting components before soldering.
