I knew I had it somewhere ... See if you are interested in this module (such as the size was not compatible with the forum, I got into my googledocs - If you have trouble viewing, Notify):

https://docs.google.com/open?id=0B8p...UdITTBZMUNpMWs
https://docs.google.com/open?id=0B8p...S1ZVk12dlp1cVE

also, a couple of years ago, I saw a similar module in a forum where they shared the hex and circuit diagram to build it ... you would have uqe implement google, maybe you'll get lucky and arm ...


ESP= Yo sabia que en algun lado lo tenia... fijate si te interesa este modulo (como el tamaño no era compatible con el foro, lo subi a mi googledocs - si tenes problemas para visualizarlos, comentame):
https://docs.google.com/open?id=0B8p...UdITTBZMUNpMWs
https://docs.google.com/open?id=0B8p...S1ZVk12dlp1cVE
igualmente, hace un par de años, vi un modulo similar en un foro donde compartian el hex y el diagrama de circuito para armarlo... tendrias uqe implementar google, quizas tengas suerte y armarlo...