GSM-Forum - View Single Post

Phil · 04-21-2002, 08:24

2 x 2V7 for RX/TX

1 x 78L05 for voltage regulation and external power supply and the 2 1N4148 for dropping voltage down to ~ 3.3V for the Max 232 - that`s the way it works

Phil

04-21-2002, 08:24	#10 (permalink)
Phil Freak Poster Join Date: Dec 2000 Location: Germany Posts: 182 Member: 2735 Status: Offline Thanks Meter: 28	aha 2 x 2V7 for RX/TX 1 x 78L05 for voltage regulation and external power supply and the 2 1N4148 for dropping voltage down to ~ 3.3V for the Max 232 - that`s the way it works Phil