Shared Projects

• some signal routing improvement.

• Changed the Boost chip to FAN5331SX (the one far more cheaper).
• now mixing the solid ground plane (at the rigid parts) and mesh plane (flexible part).

Untested. For adding cd sound back into the nomad for sega cd audio when using the mega sd cart. You dont need to, but I designed this to go on top of the 315 5684 audio chip and bend pins 10 and 24 up into the vias on the left and right. Flow solder from the via to pin 1 on the chip. Or you can place the chip elsewhere and run wires to it. Use 0402 package resistors and caps.

For programming and testing Malenki-nano

NOT FOR RESALE PCB Art momento of the Linwood/Lawrence EF4 rocket launch by Team Dominator. Design by Team Dominator supporter Monica Mercer. This is the first time a sensor has been launched into a Tornado to altitude. Copyright Team Dominator 2021.

An adapter to simplify and neaten up the wiring to the AV connector for use with some of the larger RGB boards from Tim Worthington and Borti4938.

A jumper is provided which allows the Composite Sync signal to be sent to the Luma output pin, the Composite Sync output pin, or both to support different SCART cables.

0.8mm, 1mm, 1.2mm should all be fine for board thickness.

Designed July 2021.

3Pin drop in with an LT3042 Regulator. Fixed or Adjustable voltage setting.

• decrease the SN74LVC157APWR pad width (better tolerance).
• ground plane reaches more places.
• fixed the vias overlapping with some pads.

github page

Basic stereo audio attenuator using standard voltage divider setup. Suggest using sockets for resistors to allow trial and error tuning.

R1 and R2 should be matched and are the higher value (ex 1000) R3 and R4 should be matched and lower value (ex 100)

With example 100 and 1k values that gives a 10:1 reduction which should be -20db but for my devices ended up being more like -30db which worked for what I needed it for. This is due to the source’s output impedance. I use this to reduce line in audio to a volume my recorder that records at mic level volume can handle.

middle hole is 4mm for pcb mount or screw • holes on each side are for 3mm pcb mount or screw

Raspberry pi infrared remote

Swapped the PD0 and PC4 duty. PC4 is now clock generator via CCO and PD0 is Master out pin (CMD).

Fixed USB-C mounting hole.
Moved LED a little bit away form Reset switch.
Increase 3v3 trace routing width (to Pull up resistor).

SNES controller R and L button replacement boards. Use with standard 6x6mm micro switches with 8mm height. Boards were designed for original SNS-005 controllers and may not work with 3rd party controllers.

Apologies/Disclaimer: These work well. It may takes some finesse, however, to get them in. Tabs will need to be sanded or filed down on top and botton. The narrow section may also need some messaging as they are a very tight fit. Just be sure to check the fitment before assembling them to the wires and switches. The legs of the switch will also need to be trimmed with flush cut pliers so flood their holes with solder very well. I accidentally made the wire holes in the corners a little too big, but it’s nothing that isn’t manageable. All in all it’s still a very good alternative to the cheap replacement membranes sold today.

Low Voltage regulator that allows for 24V input and outputs 3.3V or 24V based on what pins used