14 May
2013
14 May
'13
5:34 p.m.
Le 14/05/2013 16:22, Peter Stuge a écrit :
choukoumoun wrote:
Nice !!!!
How you connect? I designed a PCB with a battery contact and a case to hold it in
place. I've seen several people solder connections permanently to
the phone.
Great !!!! Ok you will have a connection diagram? or a file for the PCB?
I meant that I do not want
to mix power and serial connection
anyone has a solution for connecting to power directly
to the
battery connector by usb?
I thought used a 3.7V zener diodes in parallel between the - and +
USB power and a series resistor.
I've used LP3874. You'll need a fair bit
of capacitance in order to
transmit. it was just the power connect to a USB port and
trasmition and
another connection.
I don't understand this.
//Peter