Shared Projects

BOB to 0.1" for SOIC-8 packages

Featured in the AddOhms video series on how to design a DIY Arduino.

Humidity & Temperature Sensor

Updated buck regulator with microcontroller.

Motor Tester PCB for NIDA Props

Feel free to get some made, just leave the credit there :)

Summary

BOM bill of material list for this one now

on this Board

6 x Caps

2 x Rectifiers

1x voltage reg 12v

1x Voltage regulator 5v

6 x cap 1000uf 35 volt 2× .1 uf cap

2 x fuel bridge rectifiers 1 x transformer 110 /240 volt in 10 to 24 volt out 0 to 14 v Dc in from Electron extract or 12 v battery

This is a board designed to be used with the Teensy 3.6 with header pins, to provide 4 separate RS232 channels for Transmit and 4 channels of Receive. This will allow you to Receive RS232 GDL90 input at whatever baud rate you wish, and then transmit it out after baud rate conversion on another RS232 channel. It also will allow a Receive Channel for Baro Altitude, and a Receive Channel for Transponder squawk code, and a Transmit channel that can combine the two, to send to a UAT. This is the final version of the GDL90 converter board, configured for the Murata Horizontal regulator. The pins are oriented in the proper direction for use of the Murata. The only thing missing is that it would be nice to place a 3A schottky diode in line with the power input, because if you power the Teensy 3.6 from USB without cutting the power circuit trace, it will back feed power out to your power bus when the unit is only powered by USB. You can cut a trace on the Teensy 3.6 to prevent this, but that will prevent you from being able to power it by USB if you want to program it when it is not powered by external power. You will need software on your Teensy 3.6 to make this all work. This board simply gives you the hardware required.

Recommended parts list is: 2- rows of 2.54MM female Header Pins 1- Murata OKI-78SR-5/1.5-W36H-C 5V DC/DC Converter 1- Panasonic 25SEP10M Capacitor (Used for C9) 2- Wurth WCAP-ATG5 50V .10uF capactitors 860020672001 8- Murata RCER71H104K0DBH03A 0.1uF +/-10% 50V Ceramic Capacitors X7R 2- MAX32222EEPN+ RS-232 3-5.5V 250kbps transceiver 1- Harting D-Sub board mount Female 15-pin connector 09682537612 2- Mill-Max 18-pin gold plated IC Socket 110-43-318-41-001000 1- 15-pin D-Sub Backshell 86303638BLF 1- SparkFun Teensy 3.6 WITH Header Pin Board 2- 4-40 thread Female Screwlocks 5207953-3 or 5748558-3 or similar 1- Schottky Diode 20V 3A DO201AD 1N5820/E3/54

For an enclosure: Hammond 3.2x2.2x.91" Extruded Aluminum Enclosure 1455C801

Mating Connector: Cinch D-Sub Connector 15-pin Male 40-9815M

Other parts you may want: Optional Parts you may want or need: If you’re converting an old NavWorX ADS600B, you may want to buy a 37-pin connector and backshell similar to (3-199-1253-7) to use to connect to all of the Echo UAT components and “the box”. Also, Kapton tape for protecting the pins from the enclosure. (or use packaging tape) D-Sub machined pins for the box connector (Pins such as 204370-8 or MilSpec M39029/64-369 are not included in the above). (Alternate Pin source: SteinAir SA-1018) Echo Molex connectors 0436450600 and Pins 0462350001 for adding wires to the Echo Harness. (Mouser and Digi-Key Sell the molex parts) If you want to join the 37-pin connector shell to another mating connector, you may want these hex nuts Conec 160X10379X or Digi-Key 626-2113-ND.

More info may be available from http://www.myrv14.com

HF AMplifier for IMD Measuring

CNC Limit Switch Module v1.0 for 1610 CNC engraver. Derived from the following design.

https://github.com/gnea/grbl/wiki/Wiring-Limit-Switches

Input circuit board for the Nestronic Video Game Music Player Alarm Clock.

Project sources are located here: https://github.com/dkonigsberg/nestronic

Main circuit board for the Nestronic Video Game Music Player Alarm Clock.

Project sources are located here: https://github.com/dkonigsberg/nestronic