Although small in size, great in capabilities. The ATTINY85 Mini USB Development Board is similar to the Arduino but cheaper and smaller (of course a bit less powerful). With a whole host of shields to extend its functionality and the ability to use the familiar Arduino IDE, this board is a great way to jump into microcontroller electronics.

Complete USB Development Board Cheap Enough to Leave in a Project. If you have never heard of the ATtiny board before, it may take you more than a moment to understand its full power and potential. So read this carefully:

Firstly, it’s a 20MHz, AVR 8-bit microcontroller with 8 KB flash, 512 bytes of RAM

You get up to 5 GPIOs, 4 ADCs, 2 PWMs, 1 SPI, and 1 I2C[*]

Secondly, it’s fully compatible with Arduino

Thirdly, it can be directly programmed via USB without needing any other programmer!

And finally, it is available at a cheap price!!

Features :

1. High Performance, Low Power AVR® 8-Bit Microcontroller
2. Non-volatile Program and Data Memories
3. 8K Bytes of In-System Programmable Program Memory Flash
4. Endurance: 10,000 Write/Erase Cycles
5. 512 Bytes In-System Programmable EEPROM
6. 512 Bytes Internal SRAM
7. Peripheral Features
8. Two High-Frequency PWM Outputs with Separate Output Compare Registers
9. USI – Universal Serial Interface (12C, SPI, 1-wire) with Start Condition Detector
10. 10-bit ADC
11. 4 Single Ended Channels
12. Two Differential ADC Channel Pairs with Programmable Gain (1x, 20x)
13. Speed Grade
14. 0 – 10 MHz @ 2.7 – 5.5V, 0 – 20 MHz @ 4.5 – 5.5V
15. Industrial Temperature Range
16. Low Power Consumption
17. Active Mode:1 MHz, 1.8V: 300 µA