Trinket 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. 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!
The Attiny85 is a fun processor because despite being so small, it has 8K of flash, and 5 I/O pins, including analog inputs and PWM 'analog' outputs. We designed a USB bootloader so you can plug it into any computer and reprogram it over a USB port just like an Arduino. In fact we even made some simple modifications to the Arduino IDE so that it works like a mini-Arduino board. You can't stack a big shield on it but for many small & simple projects the Trinket will be your go-to platform.
This is the 3V Trinket, there are two versions of the Trinket. One is 3V and one is 5V. Both work the same, but have different operating logic voltages. Use the 3V one to interface with sensors and devices that need 3V logic, or when you want to power it off of a LiPo battery. The 3V version should only run at 8 MHz.
Use the 5V one for sensors and components that can use or require 5V logic. The 5V version can run at 8 MHz or at 16MHz by setting the software-set clock frequency. Even though you can program Trinket using the Arduino IDE, it's not a fully 100% Arduino-compatible.
There are some things you trade off for such a small and low cost microcontroller:
- Trinket does not have a Serial port connection for debugging so the serial port monitor will not be able to send/receive data
- Some computers' USB v3 ports don't recognize the Trinket's bootloader. Simply use a USB v2 port or a USB hub in between
- 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, you can program it with AVRdude
- with a simple config modification can be programmed from the Arduino IDE
- Mini-USB jack for power and/or USB uploading
- ~5.25K bytes available for use (2.75K taken for the bootloader)
- Available in both 3V and 5V flavors
- On-board 3.3V or 5.0V power regulator with 150mA output capability and ultra-low dropout.
- Up to 16V input, reverse-polarity protection, thermal and current-limit protection.
- Power with either USB or external output (such as a battery) - it'll automatically switch over
- On-board green power LED and red pin #1 LED
- Reset button for entering the bootloader or restarting the program.
- 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!
- Mounting holes! Yeah!
- Really really small
- Dimensions: 1.2" x 0.6" x 0.2" / 31mm x 15.5 x 5mm
- Weight (no headers): 1.85 grams
- 3.3V Logic
- Trinket Fake USB Serial - Add a USB serial port to your Trinket using software
- Trinket USB Volume Knob - Making a volume control knob using the Trinket connected to your computer via USB.
- Trinket Sound-Reactive LED Color Organ - Add sound reactive color to your tunes.
- Trinket USB Keyboard - Turning the Trinket into a standard USB keyboard.
- Trinket / Gemma Space Invader Pendant - Itsy bitsy electronic jewelry!
- Trinket / Gemma IR Control - Use a Trinket or Gemma to determine the IR codes from your remote and use the codes in your own program to trigger events
- Larson Scanner Shades (Trinket-Powered NeoPixel LED Strip Glasses) - A simple cyberpunk/Tronpunk fashion project!
- Trinket / Gemma Mini-Theramin - Make music with tiny microcontrollers and varying light levels
- Trinket (& Gemma) Servo Control - Get your Trinket or Gemma moving
- Tap Tempo Trinket - OONTZ OONTZ OONTZ
- Introducing Trinket - Introducing Adafruit's mini microcontroller
- Kaleidoscope Eyes (Trinket-Powered NeoPixel LED Ring Goggles) - Fashion headwear for cyberpunks, steampunks and Daft Punks.
For a lot more details, including a tour of the Trinket, pinout details and Arduino IDE examples, check out theIntroducing Trinket tutorial
Adafruit Trinket Mini, ATtiny85 5V
- Product Code: AD-335
- Availability: Out Of Stock
- Ex Tax: 7.11€