Shared Projects

A board designed to help make building a joystick for a Neo Geo easy and clean. This design uses terminal blocks with a 3.5mm pitch.

The design has screw terminals for each line from the DB15 connector as well as terminals for each button and the joystick. There is also space for an LED (powered by the +5v from the Neo Geo) and an extra terminal for the +5v line in case you want to do something with that.

The board is designed for use with Phoenix Contact’s Combicon PT series 3.5mm terminal blocks (however others with the same pitch will most likely fit). There are 6 2 position blocks for the buttons (+1 extra if you want one for +5v). There is 1 5 position terminal block for the joystick and 1 15 position terminal block for the DB15 in from the system. You could use the board just fine without populating the terminals (soldering directly to the holes for the terminals) but if that’s your goal a nicer and smaller board could be made with just pads/holes.

Note: The LED (including its resistor R1) and the +5v terminal block are completely optional.

(v1.8)

A board for building a line voltage inducer (as part of a phone cable) powered by USB. Meant for use with a Dreamcast and DreamPi. The board includes a DC-DC boost converter which boosts the 5v supplied via the USB to the required voltage- both 9v and 18v are supported, you just have to populate the board for the appropriate voltage. Phone jacks are used instead of splicing the cable to make the inducer as easy to use as possible.

• U1 is a TI MC33063AP
• D0 should be a Schottky Diode with a high enough voltage rating
• J1 and J2 were designed for Stewart Connector’s SS-6466S-A-PG1
• J3 was designed for Amphenol FCI’s 73725-0110BLF

Prototyping Board with 30 Columns

Main Board of Divergence Meter 2 - TEST

IN-14 Board of Divergence Meter 2 - TEST

My first tryout for a Tranceiver with the PCB-Antenna. Used TSSOP-20, 9x 0402 and 1x 0603 Component’s Footprints. Ready for seamless Integration in exist system.

First release. Need try to real circuit environment.

CAN-bus shield for Arduino Pro Micro. Also can support for ISO9141 (K-Line).

Based on STM8S003 and CP2102

FPGA Bridge Adapter Board

Atmega32u4 + GPS + LoRaWAN

Fully working digital setting circles for telescope based on Atmega328p and HC-05 Bluetooth to Serial converter. To be used in conjunction with two incremental encoders.

Convenient way to connect a bench split supply to a breadboard, using banana connectors. Inspired by Mutable Instruments/Olivier Gillet.

Simple adapter to conveniently run a single Eurorack module from a bench power supply (eg. to measure current draw)

ILI9341 connector for 14 pads + 4 pads for touch, broken out to 14 connector pins using a touch controller. It is a clone of the PCB for this screen but without the SD card and the PCB is much smaller making it useful when you have very little room to mount it. The screen itself is available separately here To build this you need a couple of resistors and ceramic capacitors as well as an RT9169 and a touch controller. I used solder paste etc for the smd parts but I hand soldered the screen. It is fiddly work but I don’t think it is a good idea to put the screen through an oven or hot plate. Be careful when soldering the screen to the board. The connections are very fine and, when soldered, rather fragile. Make sure you stick the board and screen together somehow, such as double sided tape, to prevent strain on the connection. It is important to get the screen connection around the right way. Check carefully before you solder. For details on connecting the resulting board to your processor see PJRC’s instructions

See more details: https://github.com/mvvproject/ReVerSE-U16/tree/master/u16_board/modules/v2debug