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Dear friends i have just use tws and rws pair for wireless communication between two 8051 microcontrollers.
when i communuicate them with wire, work fine...
but problem arise when i used the wirless modules,it does not works..it seems that RWS data pin is not able to drive the Rx pin of...
I have also used npn transistor (BC547) to control the RWS-434 GND in same configuration as u have describe and it works fine but i have used a 10k resistor with pull-up on transistor base.
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