Wiring diagram:
Effective range: open area 700 meters, other conditions determine the effective distance according to the truth!
PLS connection the antenna(433 sucker) with the first pcs of TF-RF-M, and charge it was normal power.
Connected the RF sender module to computer via USB cable and installation with antenna(433 sucker). Make confirm your computer already installation the driver from USB port to serial port.(my computer-- click on the mouse of right button "attributes" --"hardware" --"device manager" --"port (LPT and COM )" to see if there have display com port.
Open powerled software
, click on "Sear"£¬then you will see the following window. Otherwise check the previous step is correct.(there will have an lamp keep lighting all the working time.)
Add text/time/clock...from tool bar, after finish edit and check, just click on send button, as below picture.