does anybody have any experience with what type of signal it actually sends/receives?
you see that in the datasheet for the receiver you have a digital output and a linear output as well.
I sent a pwm type output through this and it looks like it kind of successfully transfers but the signal is very noisy, disrupting the pwm signal. i dont think an analog voltage signal would transfer
"Linear" output doesn't mean that the module is intended to receive analog signals. The module pair is able to transmit digital data with balanced duty cycle, either remote control encoder data or manchester encoded serial data streams.
okay so i finally figured out to find a digital signal to send through these. there is another problem that comes up:
1. the signal being sent to the transmitter is 9600 baud which is 2x the 4800baud for the tx/rx (which i do not know if it affects the signal any)
2. when i view the signal, it is very noisy and it looks like it is just random numbers. the thing is, if i turn off the Tx, the values stay in their random state and it looks like there is no uniformity
hello.. i have this circuit of an fm transmitter.problem is, i can't explain how L2-C9 & L3-C12 seem to be doing the work of tuning. can someone here help me explain? I'l remain grateful.
Now I am at the point where i can send a digital signal at 4800 baud through these sensors.
The thing is, If it send "123" on the other side, i rarely ever get the "495051" sequence (refer to ASCII table)
there is no encoding for this signal and i am not quite sure how to "encode" it either.
the accuracy rate is less than 10% and I have no Idea why the signal is so "noisy"
as of right now i am using the default software.serial library used for the arduino connected directly to the Tx
(i believe this is called something like an UART)
Apparently the OP intends serial data transmission. HT12x isn't an option in this case. It should be mentioned that the Arduino code examples provided by Sparkfun are implementing a Manchester-like data encoding.