DTMF via PICAXE ?
I've recently pondered a simple UHF signalling application that may suit PICAXEing, & the marvellous Nov. 2007 DTMF work of Michael Jeffery crossed my mind => http://www.picaxeforum.co.uk/showthread.php?t=8140&highlight=DTMF. Such hacked PICAXE approaches increasingly appeal, as traditional DTMF chips are often now both elusive & quite costly little blighters. Did anyone work this past PICAXE approach up, or nail any quirks?
DTMF of course is legendary for it's robustness, & although slow ("typing speed") will often get thru' in noisy links when all other approaches fail. I'm happy to test & co-ordinate PICAXE ideas (preferably 08M with a coin shop IR TV remote keypad encoder), as I'd like to produce at least a standard approach educationally. Stan
I've recently pondered a simple UHF signalling application that may suit PICAXEing, & the marvellous Nov. 2007 DTMF work of Michael Jeffery crossed my mind => http://www.picaxeforum.co.uk/showthread.php?t=8140&highlight=DTMF. Such hacked PICAXE approaches increasingly appeal, as traditional DTMF chips are often now both elusive & quite costly little blighters. Did anyone work this past PICAXE approach up, or nail any quirks?
DTMF of course is legendary for it's robustness, & although slow ("typing speed") will often get thru' in noisy links when all other approaches fail. I'm happy to test & co-ordinate PICAXE ideas (preferably 08M with a coin shop IR TV remote keypad encoder), as I'd like to produce at least a standard approach educationally. Stan
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