Is there any documentation available for the pinout and protocol used for the head connector on a CDM 1550 (or 1250 or 750) radio?
I have a couple dead radios and I had the bright idea of gutting them and putting in a Raspberry Pi or Beaglebone Black computer to create a rugged mobile computer. I thought it would be fun to use the existing display/buttons/knob/speaker/mic as input/output from the computer board. I did some searching but found nothing so either I'm using the wrong terms or the info isn't available... There doesn't seem to be enough connectors in that ribbon cable for everything to have it's own line, so I'm guessing there's some multiplexing and serial I/O going on. But, reverse engineering it is beyond my time & talent.
For example, a Raspberry Pi computer and one of the many RTL/SDR dongles connected to the existing antenna jack could create a nifty scanner in an old CDM body...
Thanks!
-Farren
- Board index General General Motorola Solutions & Legacy Radio Discussion
- Search
-
- It is currently Fri Apr 19, 2024 11:45 am
- All times are UTC-08:00
Head protocol
The General forum is where users can discuss any topic regarding Motorola communications equipment - hardware, software, etc. There are also several focused forums on this board, so please take the time to ensure that your questions doesn't fall into one of those categories before posting here!
Moderator: Queue Moderator
Return to “General Motorola Solutions & Legacy Radio Discussion”
Jump to
- Administrative
- ↳ Announcements and Forum News
- ↳ Forum Rules
- General
- ↳ General Motorola Solutions & Legacy Radio Discussion
- ↳ Radio Programming
- ↳ Software & Firmware Releases & Issues
- ↳ Codeplug Information
- ↳ NFPA 1802 Discussion
- Current Motorola Solutions Public Safety / Astro Product Line
- ↳ APX NEXT
- ↳ APX Series Subscribers
- ↳ ASTRO Series (Astro Saber, Spectra, XTS3000/3500) Subscribers
- ↳ ASTRO25 Series (XTS/XTL 1500/2500/5000) Subscribers
- ↳ ASTRO Experimental - How to do things a little out of the box
- ↳ ASTRO Products Feature Requests & Future Speculation
- ↳ Legacy Batboard Motorola ASTRO (VSELP/IMBE/AMBE) Equipment Forum
- Current Motorola Solutions Professional / Business Product Lines
- ↳ MotoTRBO ION Devices
- ↳ Motorola CP/CM Series Subscribers
- ↳ MotoTRBO Portables and Mobiles (4xxx/6xxx) 1.0 Series Subscribers
- ↳ MotoTRBO Portables and Mobiles (3xxx/5xxx/7xxx/SL) 2.0 Series Subscribers
- ↳ MotoTRBO Repeaters, Trunking, and Site Infrastructure
- ↳ MotoTRBO 3rd Party Application Discussion & Support
- ↳ MotoTRBO/Business Products Feature Requests & Future Speculation
- ↳ Experimental - How to do things a little out of the box
- Motorola System Infrastructure (Consoles, Base Stations, Repeaters, Trunking, etc.)
- ↳ Smartnet/Smartzone/Project 25 (Phase I/II) Systems
- ↳ Base Stations, Repeaters, General Infrastructure
- ↳ Consoles
- ↳ Experimental - Mods, and how to do things a little out of the box
- ↳ Infrastructure Product Feature Requests & Future Speculation
- Focused Discussion
- ↳ Motorola Digital and Voice Paging
- ↳ Converting Motorola Equipment to 900MHz Amateur
- ↳ Test Equipment & RF Equipment Alignment
- ↳ Vehicle Radio Installs
- ↳ Experimental and Next Generation LMR
- ↳ Motorola Digital Radio Compatability
- Off-Topic Discussion
- ↳ Vehicle Warning Equipment Discussion
- ↳ Computer/Technical Assistance
- ↳ Knowledge Base