What is it?

This is ATtiny84 breakout board Kit suitable for use in breadboard. It has reverse current protection on all power inputs so it can work while connected to external power source and includes AMS1117 3.3v regulator.

Led is attached to standard PB2 (LED_BUILTIN) and includes a reset button.

USB is connected to PB1 and PB0, so micronucleus can work as well.

Please note that the ATtiny84 included is not programmed, you'll have to use ISP 6 PIN to program it.

All in a tiny 30x20 mm board

Why did you make it?

I needed a small MCU but with enough pins for experimentation and proof of concept before I design a PCB for other projects, this board gives me the opportunity to do just that, I couldn't find ATtiny84 breakout with my needs, so I designed this board.

What makes it special?

I don't think there are any ATtiny84 breakout boards ready for micronucleus, while ISP is good enough, sometimes its easier just to plug USB and program it.

I've also added 3 PCB jumpers: JP1 - to disconnect PB2 from LED, in case it interferes with your design JP2 - to disconnect PB3 (RST) from the 3.3v pullup and reset button. * JP3 - to disconnect the Power LED, in case it uses too much power

Can you solder it for me?

This product does not come soldered and is a DIY type of project. Unfortunately I don't have the time to solder this kit for you, but if you have a steady hand and decent SMT soldering skills, I only have a few tips.

• By far the hardest part is the USB socket, if you don't plan on using it, avoid it.
• Use plenty of flux, when you're done, use a toothbrush and some alcohol and the board will look like new.
• Solder only 1 pin, position the part and when its set, solder the others.