Adafruit KB2040 controller: Pro Micro size, awesome RP2040 power #Keyboards #RP2040 @KbdNews
Adafruit announced the preliminary pinouts of its RP2040 based KB2040 controller.
Featuring a Raspberry Pi RP2040 with a dual ARM Cortex-M0+ running at up to 133MHz with 264kB on-chip SRAM and built in USB, the Adafruit KB2040 seems to be a Raspberry Pi Pico alternative in a Pro Micro form factor.
Designers at Adafruit seem to be aware of the importance of Pro Micro compatibility among keyboard enthusiasts.
We’re comparing to the popular pro micro boards that folks use for keebs. so far so good – it’s a lot to fit into such a small board but we think it’s all there! – Phillip Torrone.
So this controller has 18 easily accessible GPIO pins like the original Pro Micro?
Yes there are 18 GPIO pins accessible along the pads, plus another 2 on the JST SH connector – those are intended for I2C access. We also broke out the D+ and D- pins for folks who want to have the USB connector elsewhere.
Also, is the footprint 100% Pro Micro compatible?
Yep! The physical size is the same with the pads in the same location. For pin usage, there are a few differences: the RP2040 does not have as many analog pins, for example, but it can have PWM on any pad. All the peripherals: UART/I2C/SPI and the GPIO numbers, are the same locations.
Giveaway – Celebrating The First Anniversary Of Starting KBD.news
KBD.news turns one on November 20!
The first “issue” was a simple, humble text post on Reddit (here, in a test-sub), a simple list of links, without any bells and whistles.
Today, after 50+ issues published and 1000+ projects featured, the website is checked by 40,000 unique users in a month and the weekly newsletter is sent to 1,500 subscribers.
To celebrate these achievements of the past year, I reached out to some vendors (the vendor database and map came in handy) and many were kind enough to offer various prizes for my readers and subscribers.
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: adafruit.com/editorialstandards
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 code.org, 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.