5V Trinket Mini Microcontroller Board

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Adafruit IndustriesSKU: RB-Ada-273
Manufacturer #: 1501

Price  :
Sale price ¥1,074 Regular price ¥1,195

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In stock, 11 units

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  • Tiny microcontroller board
  • Power with either USB or external output
  • Can run at 8 MHz or at 16MHz by setting the software-set clock frequency
  • On-board 5.0V power regulator with 150mA output capability and ultra-low dropout

The 5V Trinket Mini Microcontroller Board may be small, but do not be fooled by its size! It's a tiny microcontroller board, built around the Atmel ATtiny85, a little chip with a lot of power. We wanted to design a microcontroller board that was small enough to fit into any project, and low cost enough to use without hesitation.

5V Trinket Mini Microcontroller Board- Click to Enlarge

Perfect for when you don't want to give up your expensive dev-board and you aren't willing to take apart the project you worked so hard to design. It's our lowest-cost arduino-IDE programmable board!

5V Trinket Mini Microcontroller Board- Click to Enlarge

  • 1.2" x 0.6" x 0.2" / 31mm x 15.5 x 5mm


  • (no headers): 1.85 grams
  • ATtiny85 on-board, 8K of flash, 512 byte of SRAM, 512 bytes of EEPROM
  • Internal oscillator runs at 8MHz, but can be doubled in software for 16MHz
  • USB bootloader with a nice LED indicator looks just like a USBtinyISP so you can program it with AVRdude (with a simple config modification) and/or the Arduino IDE (with a few simple config modifications)
  • Micro-USB jack for power and/or USB uploading, you can put it in a box or tape it up and use any USB cable for when you want to reprogram.
  • On-board green power LED and red pin #1 LED
  • Reset button for entering the bootloader or restarting the program. No need to unplug/replug the board every time you want to reset or update!
  • 5 GPIO - 2 shared with the USB interface. The 3 independent IO pins have 1 analog input and 2 PWM output as well. The 2 shared IO pins have 2 more analog inputs and one more PWM output.
  • Hardware I2C / SPI capability for breakout & sensor interfacing.
  • Works with many basic Arduino libraries including Adafruit Neopixel!
  • Really really small

Customer Reviews

Based on 2 reviews
Where size is at a premium

Excellent controller despite small size. My project is powered by USB so there was only 3 pins out of 5 available. Got around that problem by using a pair of 7447's. 16mhz software selectable. Excellent service and delivery as always from Robotshop!

As advertised

What can I say? It does pretty much exactly what it says it does. Great for applications that require a small micro controller due to physical size restrictions. Still has a decent number of features despite size. The tab near the reset button does add an extra ~0.1" and doesn't seem to serve any purpose other than space to screen the device name on.

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