Adafruit Pro Trinket - 3V 12MHz

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Product Code: 91520
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Product Description
  • ATmega328P onboad chip in QFN package running at 3.3V logic
  • 12MHz clock rate, 28K FLASH available
  • USB bootloader so you can program it with AVRdude and/or the Arduino IDE (with a few simple config modifications).
  • Has headers for an FTDI port for reprogramming
  • 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 3.3V 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 #13 LED
  • Reset button for entering the bootloader or restarting the program.
  • Works with 99% of existing Arduino sketches (anything that doesn't use more than 28K, and doesn't require pins #2 and #7)
  • Mounting holes
$10.76
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    Adafruit Pro Trinket - 3V 12MHz info

    Adafruit Pro Trinket - 3V 12MHz combines everything you love about Trinket with the familiarity of the core Arduino chip, the ATmega328. It's like an Arduino Pro Mini with more pins and USB tossed in. Adafruit Pro Trinket - 3V 12MHz designed for projects in which users need more pins, more flash and more RAM. It has 18 GPIO, 2 extra analog inputs, 28K flash and 2K of RAM.

    Like the Trinket, Adafruit Pro Trinket - 3V 12MHz has onboard USB bootloading support and a MicroUSB jack. It also has Optiboot support, so you can either program your Adafruit Pro Trinket - 3V 12MHz over USB or with a FTDI cable just like the Pro Mini and friends.

    Adafruit Pro Trinket - 3V 12MHz uses the Atmega328P chip, which is the same core chip in the Arduino UNO/Duemilanove/Mini/etc. However, it uses 3V logic and 12MHz clock which means it's good when you want a lower-power and lower-voltage setup. Adafruit Pro Trinket - 3V 12MHz is programmable using the Arduino IDE as you already set up, and 95% of Arduino projects will work out of the box!

    Here are some things you may have to consider when adapting Arduino sketches:

    • Pins #2 and #7 are not available (they are exclusively for USB)
    • Adafruit Pro Trinket - 3V 12MHz runs at 12MHz, this doesn't affect most projects. Only the most timing-specific libraries may be affected, check the documentation. The NeoPixel Library works fine at 12MHz.
    • The onboard power supply is a 3.3V regulator and it can provide 150mA output
    • You cannot plug shields directly into the Pro Trinket
    • There is no Serial-to-USB chip onboard. This is to keep the Pro Trinket small and inexpensive, you can use any FTDI cable to connect to the FTDI port for a Serial connection. The USB connection is for uploading new code only.
    • The bootloader on the Pro Trinket use 4KB of FLASH so the maximum sketch size is 28,672 bytes. The bootloader does not affect RAM usage.

     

    Adafruit Pro Trinket - 3V 12MHz - Genel Özellikler

    • ATmega328P onboad chip in QFN package running at 3.3V logic
    • 12MHz clock rate, 28K FLASH available
    • USB bootloader so you can program it with AVRdude and/or the Arduino IDE (with a few simple config modifications).
    • Has headers for an FTDI port for reprogramming
    • 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 3.3V 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 #13 LED
    • Reset button for entering the bootloader or restarting the program.
    • Works with 99% of existing Arduino sketches (anything that doesn't use more than 28K, and doesn't require pins #2 and #7)
    • Mounting holes

     

    Adafruit Pro Trinket - 3V 12MHz - Technical Specifications

    • Dimensions: 38mm x 18mm x 2mm
    • Height with MicroUSB: 4mm
    • Weight: 2.6g

     

    Videos

     

    Documents

    ATmega328 Datasheet

     

    References

    Adafruit Web Sitehttps://www.adafruit.com/products/2010

     

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