I am trying to test out my RF 433MHz transmitter/receivers with a simple test to see if it works between two arduinos, one is a NHduino UNO and the other is a Freetronics Eleven. I can not get anything on the receiver end and I don’t know why. When I check serial on the receiver I see the message ’ device is ready’ but that is all. No Rx lights flashing. I have pretty much copied and pasted the codes from two of the below links without sucess:
I made sure I had used all the right pins according to the code and setup diagram on each link.
Im still new to Arduino so not sure if there is an issue with the RF transmitter/receivers or something wrong with the code, or some compatability issue with using two different brand arduino unos?. I assume the code is ready to go assuming the pins are correct?
I have also attached a photo of the setup.
Have attached photo of testing as recommended in a few posts below and original photo of setup trying to get the transmitter and receiver working
I have tried what you have said but can not get the led to turn on. I have attached a photo of my setup but not sure if I have done something wrong, im still a noob to all of this. Let me know what you think. Thanks
I have pretty much copied and pasted the codes from two of the below links without sucess:
Forget about the code in the second link, and use Virtual Wire (or RadioHead) as the library to use these modules.
VirtualWire is more simple and works well, so start with that. There are examples which come with the library.
As a first trial, don't use an led on the RX pin, but use either the Serial monitor to test for successful transmission/reception or the built in led on pin13. See the VW examples.
You should also use antennas with these modules. If there are right angle pins on the Antenna connections, then a piece of strait wire 17cm pushed onto a breadboard hole linked to the pin will work. Otherwise, you can solder the wire directly to the antenna hole on the board and have it pointing upwards.