Voting resources, early voting, and poll worker information - VOTE. ... Adafruit is open and shipping.

“Arduino upgrade” – for free…

Tinkering in London writes –

At Tinker London we frequently built large interactive projects using Arduino, often to tight timescales. We frequently use libraries that give us lots of functionality, but code space in Arduino can be tight, and it always feels like programming takes too long.
The open source nature of the tools we use gives us flexibility to customise them to suit us better. I had a delve into the Arduino source code to see what could be done. Hours went into code examination, tweaking, restructuring and compiler optimisation, and a lot was learnt along the way. The result of these labours is Optiboot, a replacement bootloader for Arduino platforms.

Optiboot gives us:

  • Faster sketch uploading. Optiboot has improved serial port handling and programming algorithms which speeds up uploading.
  • More space for sketches. Optiboot is a quarter of the size of the normal Arduino bootloader, giving 1.5K of extra space to use for our sketches.
  • Adaboot enhancements. Optiboot has extra logic that makes sure that our application runs as soon as possible after programming.
  • Better maintainability. Optiboot is written in C without large blocks of assembly language, so alterations will be easier in future

Changing the bootloader on an Arduino requires some form of device programmer – we use the AVRISP Mk II programmer, but you also use another Arduino as a programmer.

Optiboot is an open source project for anyone to use and build upon. It is available at the Optiboot Google Code repository.

Adafruit has had paid day off for voting for our team for years, if you need help getting that going for your organization, let us know – we can share how and why we did this as well as the good results. Here are some resources for voting by mail, voting in person, and some NY resources for our NY based teams as well. If there are additional resources to add, please let us know –

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.

Join 24,000+ makers on Adafruit’s Discord channels and be part of the community!

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!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more

CircuitPython – The easiest way to program microcontrollers –

Maker Business — To make it through a tough business cycle, layoffs should be a last resort

Wearables — Rub’n’buff

Electronics — Multimeter Bandwidth – AC Signal

Python for Microcontrollers — Python on Microcontrollers Newsletter: CircuitPython 6 Release Candidate, new hardware & more! #Python #Adafruit #CircuitPython #ElectronicHalloween @micropython @ThePSF

Adafruit IoT Monthly — Matrix Portal, Solar Lawn Sprinkler and more!

Microsoft MakeCode — micro:bit version 2 Announced!

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

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — BACK IN STOCK – Adafruit 2.9″ Grayscale eInk / ePaper Display FeatherWing – 4 Level Grayscale

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

1 Comment

  1. Looking forward to trying this out!

Sorry, the comment form is closed at this time.