Board to facilitate intercepting signals to an Intellivision STIC chip

A simple fully integrated sensor node.

I designed the board to get experience with the ARM Cortex M0+ platform.

IMPORTANT: this board has been designed for the 2 oz service; if ordered with the standard 1 oz service, the properties of the antenna will not be as expected

For more detail please consult the git hub page of the project.

Rev00 + pick holes and sand-to-fit tabs + wider L- flood.

Temp/Measurement Breakout Board For SI70XX Sensors

lm317 voltage and current adj

lm317 V adjuster

Get 6 pcs and you can build your own fidget cube with your favorite Cherry-MX compatible switches!

warning Spent 5 min designing it. Have not tested with PCBs yet.

Feel free to shoot me an email at adam[at]bigtuna.io or u/b1g-tuna

Get 6 pcs and you can build your own fidget cube with your favorite Cherry-MX compatible switches!

warning Spent 5 min designing it. Have not tested with PCBs yet.

Feel free to shoot me an email at adam[at]bigtuna.io or u/b1g-tuna

Pockells Cell diplexor

Description

Prototype PCB layout for a pager unit designed to operate on an existing WiFi infrastructure. It has a number of features designed for possible future expansion, to meet whatever requirements may arise during testing.

• OLED screen (0.96" OLED display with FPC connector, from BuyDisplay.com)
• DRV2605L haptic motor driver (and SMT haptic motor)
• ATECC508A crypto-authentication device
• Four soft-touch buttons intented for user interface operation
• Two soft-touch buttons intended for development and testing purposes
• Reset button
• JST connector for a rechargeable LiPo battery
• Micro USB connector for battery charging

NB: The ZIF connector (J1) is reversed in rev. A and requires some kind of mitigation, or an OLED module whose pin 1 is on the left-hand side. My OLED module’s pin 30 is on the left; there may be others that are not like this.

Bill of Materials

** OLED-0.96W is 30 pin 0.5mm pitch ZIF connector (bottom contact) from BuyDisplay.com

Designed by SC-Maik for use as a replacement for potentiometers in the building of a Delta Throttle http://deltathrottle.com/forums/viewtopic.php?f=4&t=122&start=10

Micro Relay Board

I designed this to use a small signal relay () with a small package to use in many of my projects that need a relay without a log of space available. The silkscreen for the relay contacts are reversed and haven t had the motivation to update it as I am probably going to be the only person using it, but just in case I wanted any else to be aware of that. The board uses a sot-23 diode as a flyback diode across the relay coil, and it is input signal is active high which drives a transistor to pull the relay to ground. So the signal input does not directly drive the relay because that might pull more current than a microcontroller can provide from a single pin. The two pin header is there to easily check that the relay functions them out. Design is about as small as I could make so the fab costs are pretty low.

syncstripper test board

FPV electronics

vrxbaord1