NOTICE-I am currently waiting on some improved PCB's. shown above is the older PCB however any orders will receive the newer improved PCB shown in the pinout diagram. They are identical minus the moved R1 and improved silkscreen. Unfortunately in the new pcb silkscreen SCL is in a slightly off position

Designed to be squeezed into the tiniest of projects where space is key, but as powerful as an Arduino(TM) UNO running on the same chip. At heart its an Atmega328p-AU breakout board with 0.1" spacing, the most basic support circuitry and an isp port for programming. This allows it to be hackable and to adapt, power it with any voltage from 2.7-5.5V! it will (probably) survive and keep going! change the fuse bits! mess with the clock! then stuff it into a tiny enclosure and watch it drive your tiny robot!

Why ISP

So to program this you need and ISP programmer BUT - ISP free's up a bunch of possibilities and is much more reliable and faster than talking over serial via a converter (Like the UNO) and both require a programmer to talk to a computer!? why waste your time with serial! taking up two of your pins, valuable Uart ports and Bootloader space... Ugh. I've tried a USB bootloader (eg Adafruit's Pro Trinket ) but that also takes up 2 pins! and the bootloader takes ages to load, with ISP turn it on and you programs off! just like that - no waiting.

ISP programmers used to be expensive, but now there just as easy to get and MORE useful than an ftdi serial adapter! I would recommend the USB tiny ISP, FAbisp both use the same drivers, or USBasp

Oh and there's this one - my 16$ REDisp!! cheap as chips - view it on my store.

And hey! if you haven't got one just send me your code a info@redsmokeelectronics.com in INO or HEX and ill put in on there for ya!

What you get

• A 1" by 1" board (will fit in breadboard if 2 opposing rows are populated) and will fit in a perfboard
• The Atmega328P-au
• A 16 MHZ crystal setup
• pull-up reset resistor
• Built in Power-LED In your choice of colour
• plenty 'O headers

All the necessary pins are broken out for your project - the new board has an updated silkscreen with pin functions labeled as well (pictures are of slightly older board)

Specs

• Processor-Atmega328P-AU
• Clock-16MHZ
• Fuse Bits-Same as UNO
• Voltage-5.5 to 2.7 (no reg. so do what ya want)
• Current >15MA
• Want anything else? email me for inquiries

It comes as a kit with the chip setup to run at 16MHZ and pre-tested running BLINK on pin 13 but that 0.8mm TQFP can be a pain, so i will assemble it by hand if that's required. Parts are 0805 and the LED is 0603, the Crystal is through hole to make it easy to hand solder. Again if you would like software pre-loaded instead of Blink just throw me a call.

Shipping - orders made before 12 AM GMT will ship before 7:30 GMT that day on all business days. Parts come in small Jiffy padded envelopes with extra bubble wrap - inside antistatic bag with quick reference assemble instructions as well as a checklist and Serial Number. Full assembly instructions are up on instructables.com but it should be plug and play and give a call if you need help. To program plug into ISP and use >UPLOAD USING PROGRAMMER on Arduino IDE having selected your programmer

Check out The Custom Geek and his "1 square inch" board, similar but it instead uses ftdi.

Thanks for checking me out!