Shared Projects

This is a Shield to hold promicro 5 axis and a 6 rotary encoder matrix and pins to wire in shift register board from Debolestis. Tested and works

This a a board of 3 rotary endcoders matrix with diodes wired to Promicro programmed with with MMJOY2 currently working in a radio panel I put together. Tested and works

A simple RF Bandpass Filter. Component values are dependent on your filter requirements.

This board will work with many Bandpass filter designs, such as https://www.electronicproducts.com/Bandpass_Filter_Design_Calculator.aspx . Put in your cut-off frequency, impedance is probably 50 ohms, and 5 L/C pairs. Then click Calculate, and those are your component values.

This board will take either 1206 SMT capacitors, or .1" radial capacitors. It’s laid out assuming FT37-43 toroids for the inductors, but will probably work with axial pre-made inductors too, they just won’t lay flat on the board. The SMA connectors will take either vertical or edge mounted SMA connectors.

A simple RF Highpass Filter. Component values are dependent on your filter requirements. I made this as an AM broadcast band blocker, cut-off at 1.7MHz. But you can put whatever values you want on it.

This board will work as either Butterworth filter (eg: http://www.calculatoredge.com/electronics/bw%20tee%20high%20pass.htm) or Chebyshev filter (eg: http://www.calculatoredge.com/electronics/ch%20tee%20high%20pass.htm). Put in your cut-off frequency, impedance is probably 50 ohms, and 9 components. (For Chebyshev, you’ll also need to specify the pass-band ripple tolerances.) Then click Calculate, and those are your component values.

This board will take either 1206 SMT capacitors, or .1" radial capacitors. It’s laid out assuming FT37-43 toroids for the inductors, but will probably work with axial pre-made inductors too, they just won’t lay flat on the board. The SMA connectors will take either vertical or edge mounted SMA connectors.

Teensy Audio Breakout for Nixon 18.5min gap

PCM2707 breakout

VERIFIED WORKING

This light is powered by an ATtiny45/85 which powers on the 14 LED lights when motion is sensed and it is in a dark room. The light sensor on the board will not allow the lights to come on if it is in a reasonably lit room.

It is fitted with a barrel plug for power, this model specifically with an L7805CV voltage regulator.

NOTE - I use a 3 pin female header to plug the PIR sensor into to the PCB.

Download my source code

View BOM

Designed using Fritzing

Dual RGB LED driver board

Atmega328P and RFM69HCW to send values of sensors to the main gateway. Untested yet. Order on your own risk!

linx / Arduino-Pro board

SJ Effects Mons Meg ‘ultimate’ Big Muff PCB. Project info/thread can be found here: http://www.madbeanpedals.com/forum/index.php?topic=24468.0

https://github.com/kbob/MinimumViableSynth

• Composite Video Output for ZX Spectrum +2A/B & +3
• TEA2000 LUMI delay line

PCB fits within the RF modulator casing (v. 0.99)

beep beep beepity beep

Is 35mm too wide? I’m sure it is. Here’s one that’s only 24mm. As small as I can make a pair of 5050’s and a beeper. needs a special beeper, too!

https://www.digikey.com/product-detail/en/pui-audio-inc/AI-1027-TWT-5V-2-R/668-1454-ND/5011389

Go nuts.

ISDE Logic Translator Socket Board

Fits USB ports on most RaspberryPi revisions. Measurements taken from a rPi2. Includes breakout board for UJ2-ADH-1-TH - Dual USB Horizontal Connectors

s9 signal source