How to hook an LD8001B

Hello all,

first attempt did not work.
I've used those connections:

Arduino -> LD80001b
GND -> GND
3.3.V -> VCC
5 -> RX
4 -> TX

and

LD80001b -> LD80001b
P19 -> GND

I tried also with

LD80001b -> LD80001b
P12 -> GND
P19 -> GND

Both with Arduino IDE and CoolTerm

The only way I could receive something from LD80001 was with its own
RX1 and TX1 which did not have pins soldered on (when received)
I'll try the following connection set again and let you know.

Arduino -> LD80001b
GND -> GND
3.3.V -> VCC
5 -> RX1
4 -> TX1

and

LD80001b -> LD80001b
P19 -> GND

You gave me two good tips: the use of softSerial library and the init code.
Thanks for that.