Crowd Funded project OLIMEXINO-85S held the title of being the smallest Arduino compatible board around by being barely bigger than an SD card with measurements of about 16.9 x 12.7 mm; but that title now changes hands with the introduction of ?duino board measuring just 12 x 12 mm. The team behind ?duino has designed the board with the objective of providing a shrinkfield device that can be used almost anywhere. The board is said to be perfect for applications such as a mini quad-copter, a GPS logging module, small multimeters, heart rate monitors, and other wearables.The project has launched on Crowdsupply with a $5,000 US funding goal. However, being the smallest does not translate to being the cheapest as it costs $18 to get the board with a micro USB cable. Shipping within the US has been kept free with an additional $7 charged for international delivery. The deliveries are expected to commence from September this year.
Following is a list of the boards technical specifications:
ATMEGA32U4 microcontroller 6x Analog I/O ports 14x Digital I/O ports (including Rx/Tx) Status LED 5V voltage regulator (accepts up to 16V DC) 6-pin ICSP programming ports (load custom bootloaders, program other boards, etc) 2x 5V ports 2x ground ports 1x Analog reference voltage port Reset button 16 MHz precision crystal oscillator MicroUSB port for easy programming and prototyping 2x mounting holes (can be sewn into clothing)
Sources: CNXSoft
