A Small Duino

The title might sound a little strange at first go but believe me it’s worth reading or at least giving it a try. Majority of the people, mainly the hobbyist or electronic freaks, tend to use ARDUINO as their main developing environment for most of their project. The reason behind this is it’s actually low-cost, it save times as you can prototype you project faster and more importantly it’s easy to learn keeping in mind the fact the support which is available behind it. However there are situations every now and then, where you need an extra arduino or maybe the main arduino requires a small number of pins. Then Bare-Duino is the solution for your problem. The board features a ATtiny 45 or 85 on board along with an ISP programmer for easy programing with LED as well as battery connections. ISP programmer was included as previously people at MIT tech labs, develop a low cost ATTiny45 based arduino, which can be used for low pin requirements project, however it has to be programmed using an ARDUINO IDE. The… Continue reading

Quarter size stackable Arduino

tiny stackable Arduino

Tiny circuits have introduces really small Arduino board. It’s even smaller than a quarter coin. On a circle shaped PCB there is Atmega328P microcontroller in MLF package. On the edge you can find reset switch, status Led and battery connector. Due to size constraints USB connectivity and ISP is implemented in external tiny shield. These shields can be stacked one on another using special miniature connector. Modular structure allows to achieve small sized applications that may fit in to small robots, rocket models or in any tight space. There are already several shields available – USB & ISP, 16 LED and bunch pr prototyping shields. They also come in 20mm square shape. Be sure to check out TinyLily as well. Continue reading

New micro Arduino board using Attiny85

Arduino is an interesting platform to experiment with. But using standard Arduino board is not always a best solution. For small projects like controlling LEDs or relays smaller MCU boards would be better choice. This is why Digispark came up with a new shape of Arduino board. Making tiny board they’ve chosen smaller microcontroller as well. As we already know Attiny85 runs well Arduino code it is ideal solution in six legged package. The board is designed to serve as USB connector which solves power and serial interface problems. Arduino board has 6 pins where two of them are already used for USB. But they can be used as general purpose I/O. Overall there is I2C and SPI available, 3PWM four analog inputs, power LED and status LED. The board size is 17.5mm by 19mm. This is an open hardware project that awaits your feedback on improvements and shield requests. Continue reading