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Re: CH_PD always connected to GND?

PostPosted: Tue Jun 09, 2015 11:26 am
by tytower
OK I would suspect wiring initially as this chip has big bursts of power frequently and it seems to burn wires easily . Use solid if you can on the TX and RX wires and make sure they are crossed .TX to RX -RX to TX and you have the baud rate set right.

Re: CH_PD always connected to GND?

PostPosted: Tue Jun 09, 2015 3:38 pm
by j0hncc
"The chip ... seems to burn wires easily"

LOL!

Re: CH_PD always connected to GND?

PostPosted: Wed Jun 10, 2015 1:11 am
by tytower
j0hncc wrote:"The chip ... seems to burn wires easily"

LOL!

Yep there are transmission pulses of 450mA each 100 nanoseconds or so I am told . Too quick to get on a multi but my orrible ong kong breadboard connectors seem to just give up on this chip and I have gone to all solid wires.