Adding Custom Boards to the Arduino v1.6.3+ Board Manager

Screen Shot 2015-04-03 at 7.28.04 PM

If you have downloaded v1.6.3 of the Arduino IDE, you may have noticed the addition of a feature called the Board Manager that was added along with the Library Manager. We have been working hard on updating our boards to work with the new manager, but the IDE doesn’t support the adding of third party boards to the list yet. We have a temporary workaround for that issue in the form of a simple open source HTTP proxy that adds our Trinket Pro and Flora boards to the Board Manager list. We have also packaged the ESP8266 Arduino core and the arcore MIDI USB core for the Arduino Micro and Leonardo so they are easy for you to install and use in your projects.

The proxy server is very experimental, and we are still working on support for the Gemma and standard Trinket boards. Check out the tutorial on the Adafruit Learning System for more info!

Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here:

Join Adafruit on Mastodon

Adafruit is on Mastodon, join in!

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Join over 36,000+ makers on Adafruit’s Discord channels and be part of the community!

CircuitPython – The easiest way to program microcontrollers –

Maker Business — “Packaging” chips in the US

Wearables — Enclosures help fight body humidity in costumes

Electronics — Transformers: More than meets the eye!

Python for Microcontrollers — Python on Microcontrollers Newsletter: Silicon Labs introduces CircuitPython support, and more! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi

Adafruit IoT Monthly — Guardian Robot, Weather-wise Umbrella Stand, and more!

Microsoft MakeCode — MakeCode Thank You!

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — #NewProds 7/19/23 Feat. Adafruit Matrix Portal S3 CircuitPython Powered Internet Display!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at !


  1. Hi,
    This is great, except that when I try to compile with my Trinket Pro 5V/16Mhz FTDI, I get

    Arduino: 1.6.3 (Mac OS X), Board: "Pro Trinket 5V/16MHz (FTDI)"

    Sketch uses 20,740 bytes (72%) of program storage space. Maximum is 28,672 bytes.
    Global variables use 313 bytes of dynamic memory.
    Error while uploading: missing ‘upload.params.quiet’ configuration parameter

    This report would have more information with
    "Show verbose output during compilation"
    enabled in File > Preferences.

  2. Hi Brian,

    Could you try a restart of the Arduino IDE and upload again? If that doesn’t work, could you post your issue to the Arduino section of the Adafruit forums?

  3. can you tell me, which Librarys did you use?

    thanks a lot

Sorry, the comment form is closed at this time.