[Svxlink-devel] Arduino and Raspberry Pi
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From: Stephen L. <kv...@kv...> - 2012-11-02 21:08:48
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Hi! Just joined the mail list, looks like this is the right place for me to be! I have seen some posts in the archive about the Raspberry Pi and Arduino interfacing - stuff I am working on too. My name is Stephen Leander, call is KV6O. My QTH is Manitou Springs, Colorado (just west of Colorado Springs), and about 6 months ago I created a Arduino based repeater controller with the plan of having the Arduino board handle the low level stuff - timers, beeps, IDing, etc. - the normal repeater controller "stuff". The other novel thing about this controller is it uses an Analog Devices digital pot to control audio levels programmatically. The original plan was to have some higher level device run a web server where repeater management could be done remotely - tweaking of audio, timers, enable/disable, etc. I have the controller up and running - it's on a custom PCB and is running on a test repeater in the Colorado Springs area. In the meantime, I have acquired a Raspberry Pi and discovered svxlink. Reading the posts - particularly the last one from Gustavo (LU8WFY), I can see I am not alone! Gustavo, my controller is pretty basic but might be a good place for you to start - it has a serial port (FTDI) and accepts commands (somewhat cryptic at this point) to adjust audio levels, enable/disable the repeater, adjust timers, etc. I'll have to get the code and Eagle files posted somewhere! I have been looking thru the source code but I am not that good a programmer - I can see where I think transmitter TX is done and where the port and pin is read out of the svxlink.conf file. My goal was to replace the serial RTS/DTR control with a RP GPIO pin, but I can see here on the mail list that other folks are trying / thinking the same thing. Working within the community here rather than by myself might be a good idea at this point! What drove me to design this repeater controller was a desire for a better, more flexible, more powerful repeater controller - most out there are expensive, closed, and based on 20 year old technology. My vision is for a controller that is web enabled, low power (hence the Raspberry Pi), low cost, modular, and open hardware / software. Perhaps with the work that has been done in the svxlink community I can realize this! Stephen Leander KV6O |