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:

Breakout board for TalonSRX Motor Controller. Includes optional 0805 resistor (10K) and 0805 schotkky diode pads to support 5V -> 3V level shifting for 5V encoder signals on rev 1.5 and earlier versions (2015 production run) of the motor controller (per the CTRE data sheet Electrical/Mechanical specs, note 2: https://www.ctr-electronics.com/Talon%20SRX%20User’s%20Guide.pdf).

Support for SMD and through hole 0.1" pitch headers. Cutout to allow access to brake/coast cal button.

This is a quick eval board for the pSemi PE4259, a SPDT RF switch. The official eval board is nearly one hundred bucks. That’s a bit much for my tinkering projects, so I decided to build my own version.

R1 and R2 are 1k ohm, R3 is 10k ohm. Square pads are pin 1. PWR-1 is 3.3V, PWR-2 is GND. CTRL-1 is connected to 3.3V, and is connected to RF-6 via R1. CTRL-2 is connected to RF-4 (CTRL) via R2, while R3 provides a pull-down on that same pin.

Traces should be ~50 ohms when using OSHParks 0.8 mm/2oz process.

No guarantees are made, use at your own risk, etc…

Uses the “extended” NeoGeo controller pinout to map buttons 5 and 6.

Parts needed:

• Female DSUB15 socket (.318" footprint, forked board locks, #4-40 flush threaded inserts)

• Female DIN13 socket (PCB mount)

See Github project: https://github.com/Wetmelon/WarthoggitClone