Shared projects

Mid Morse Beacon 2

by DonBindner.

2 layer board of 2.33x0.77 inches (59.08x19.46 mm).
Shared on January 5th, 2016 05:59.

Diminutive FM “fox” transmitter capable of up to 100 mW of output power.

Bill of materials: http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=0a724f6ca0

Kicad drawings and MSP430 source code: http://dbindner.freeshell.org/kicad/MidMorseBeacon2/

Source code was written for gcc-msp430 compiler and mspdebug on Debian/Ubuntu.

You’ll need an MSP430 Launchpad card for programming. Available for $9.99 from Texas Instruments. https://store.ti.com/MSP-EXP430G2.aspx

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Balloon Throwie

by DonBindner.

2 layer board of 1.01x1.01 inches (25.55x25.55 mm).
Shared on October 29th, 2015 00:29.

A dead simple “throwie” style blinker for balloon flights.

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Tiny Morse Beacon rev 3

by DonBindner.

2 layer board of 2.46x0.66 inches (62.46x16.87 mm).
Shared on October 27th, 2015 04:21.

A very low power 10 to 20mW beacon for radio direction finding. A bill of materials is available at:

http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=06ba8c9ddb

Schematic: http://dbindner.freeshell.org/kicad/TinyMorseBeacon.pdf

Kicad files are at: http://dbindner.freeshell.org/kicad/TinyMorseBeacon/

Gerber files are at: http://dbindner.freeshell.org/kicad/TinyMorseBeacon/gerbers/

Source code for the MSP430 microcontroller that runs the show: http://dbindner.freeshell.org/kicad/TinyMorseBeacon/msp430/

Important You must put your own amateur radio call in the file encoder.py before you build the program.

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DRA818 daughter card version 1.2

by DonBindner.

2 layer board of 1.90x1.97 inches (48.23x50.14 mm).
Shared on August 12th, 2015 03:22.

Plugs into balloon radio card to provide a transmitter. (This version with resistors in the PTT and Enable lines).

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APRS companion

by DonBindner.

2 layer board of 2.48x0.70 inches (62.97x17.88 mm).
Shared on July 22nd, 2015 04:29.

Decodes APRS audio from your radio and sends it via bluetooth to your phone or laptop. Requires an Inland Arduino Mini Pro, and an HC-05 bluetooth card.

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