I have a phone with a data cable. The phone has a hayes compatiable modem in it so Im pretty keen to get it going with a pixace. Probem is the cable has 1.A micoprocessor for translating commands and 2. some sort of max232 setup to level shift from the phone (3.3v) to a PC.
Problem is I want to communcate with this from a picaxe but obviously don't have the voltage swing of a pc. I assume the MAX232 uses the voltage from the PC to 'charge up' the caps for the voltage swing.
Anyone have any ideas how I could do this?
Problem is I want to communcate with this from a picaxe but obviously don't have the voltage swing of a pc. I assume the MAX232 uses the voltage from the PC to 'charge up' the caps for the voltage swing.
Anyone have any ideas how I could do this?