B34 PWM Uno Board

Breakout board for Arduino Nano R3 that connects to input and output using ribbon cables and 0.1" pitch IDC connectors.

Adapt 2X5 header to breadboard, pins 4 and 5 marked V5 and GND

MIDI Retrofit for Korg Polysix

*Same as T3.2 BB R4 but with the text “cutout” added to the areas to be cut out to create castellations. Also we have hand-edited the the .GBS and .GTS files (solder mask). The flash D codes have been hand-edited to reduce their size to approximately 4 mils (in x and y) larger than their copper layer counterparts (the large mounting hole D code was not changed). This size reduction should result in a 2 mil annular ring around the copper pad (assuming perfect registration). This fixes a production issue we saw where all copper was not getting covered by soldermask as it should be.

The purpose of this board is to adapt the Teensy 3.2 additional SMT pad contacts to standard 0.600" wide DIP28 footprint for easier plugging into a socket. Additional function pins and importantly RESET are brought out to the DIP28 pattern This board has been extensively tested with now a few hundred in use 24/7. Big thanks to the original designer of the R3 breakout board We have also designed and built a production fixture to hold Teensy and this board in alignment with the headers while soldering. Ask us if interested in that. Recommended header strips 0.025" square posts are AdamTech PH1-40-UA, these are breakaway strips of 40. We use the leftover pins in our assembly fixture so there is no waste. This is the most economical way to buy headers AFAIK. *Recommended socket strips for 0.025" square posts are DigiKey 929974-01-36-ND. The strip of high-quality 36 breakaway sockets leaves 12 pins: use two of those leftovers to make another strip of 24, so there is no waste.

1.3"_screen_breakout Blog post - https://facelesstech.wordpress.com/2019/01/27/1-3-screen-with-raspberry-pi/

Small board that allows for a coin receiver and a bill receiver to be used along with some RGB LED’s and a Serial display, and a finger print reader. Will update later with project link once completed.

Board for Omten 1288 switch and max 10mm spring.

This device is an adaptation of Digistump’s USB device, with two added Qwiic connectors. The first is used as a 5V I2C port, and the second has a level shifter to 3.3V using BSS138 FETs to create a 3.3V I2C port. It’s slightly bigger than the original, coming in at 31.2 x 19.0 mm, and plugs directly into a USB port.

See Github project for details.

This device is an adaptation of Digistump’s USB device, with two added Qwiic connectors. The first is used as a 5V I2C port, and the second has a level shifter to 3.3V using BSS138 FETs to create a 3.3V I2C port. It’s slightly bigger than the original, coming in at 31.2 x 19.0 mm, and plugs directly into a USB port.

See Github project for details.

DIY - Arduino Nano

Link to Pratik Makwana aka ICUBE Instructable In this instructable, He will show you how to make your very own Arduino Nano. He’s using laminator for the toner transfer method. OSHPark will make the boards for you

This includes a line driver to convert Dallas 1-wire protocol to USART to work around the total saturation of I/O.

Source at github

r2-Backplane

This is a backplane PCB for Digitabulum containing the power-management block and associated support circuits.

Intended usage

This PCB, combined with a Compute board, and a Digitabulum-r2 board (plus sensors) forms a complete electronics package for a single motion-capture glove.

The power-management block of this backplane is broken out in the PowerPlant-Module.

The CPLD GPIO pin has been routed to the 2v5/3v3 selection signal.

Features

• ESD protection diodes for ingress-resistant USB port.
• Supports full software management of battery.
• Supports reduced-voltage operation and full power down of the sensor package for maximum battery longevity.
• JTAG breakout for in-circuit programming of CPLD.

Source at github

Compute-WROOM32

This is one possible compute PCB to be used with Digitabulum-r2.

Intended usage

This PCB, combined with a backplane, and a Digitabulum-r2 board (plus sensors) forms a complete electronics package for a single motion-capture glove.

Features

• Integrated USB<–>Serial converter with Espressif monitor reset support.

Attribution

This project uses adamjvr’s KiCAD library for the ESP32.

Project page:https://hackaday.io/project/160042-rachels-nightmare-a-distributed-polyphonic-synth

PCB “hat” for the Nason pressure switch used on FRC robots. Inspired by the similar board from the Zebracorns (FRC 900) https://oshpark.com/shared_projects/kYgBY2bQ. This one adds SMT pads for a momentary push button to facilitate quick pneumatic system checks during inspection.

xmas id badge

Just some fun blinkies for Christmas. It was made for my spouse who had to work on the 25th.

v0.11 was fabbed and a via/pad overlap was fixed in v0.12. It should last quite some time if you make the atmega sleep forever at around 0.1uA (thanks, nick gammon). I used some 0805 led’s from aliexpress. fyi, the programming header has to be removed to insert a battery.

Fusebit Doctor AVR is a device for repairing AVR MCU fuses. Firmware on Fusebit Doctor AVR MCU.

TESTED

BOM: