pigbaobao
Member level 2
Hi all,
I am a final year student and i am using cytron product 315MHz transmitter and receiver and 2400 baud rate to proceed my final year project. I am also using PIC16F877A in this project.
The problem i face is...
- In the part of transmitter is fine, it i will continuous sent signal...i check it on oscilloscope the "HIGH" of rectangular waveform is 4.8V and "LOW" is almost 0V...when i sent a signal by pressing button and the waveform is pretty nice for what i want...so I think it is function well.
- In the part of receiver, what receiver receive is the "HIGH" of waveform is 4.6V but "LOW" is not 0V but 3.6V. (I am measured the voltage on the UART pin, RC7). Of course, the wave shape and frequency is the same no matter what type of signal i sent..So anyone here know what is the problem of this and any method can help me solve it?
I cant get the result i wan at the receiver side (example light on a LED when pressed a button in transmitter side), since when i was directly connected UART pin (RC6) at tx side to uart pin (RC7) at rx side it is work what i want.
I am very appreciate to anyone can help me to solve it...THANK!
I am a final year student and i am using cytron product 315MHz transmitter and receiver and 2400 baud rate to proceed my final year project. I am also using PIC16F877A in this project.
The problem i face is...
- In the part of transmitter is fine, it i will continuous sent signal...i check it on oscilloscope the "HIGH" of rectangular waveform is 4.8V and "LOW" is almost 0V...when i sent a signal by pressing button and the waveform is pretty nice for what i want...so I think it is function well.
- In the part of receiver, what receiver receive is the "HIGH" of waveform is 4.6V but "LOW" is not 0V but 3.6V. (I am measured the voltage on the UART pin, RC7). Of course, the wave shape and frequency is the same no matter what type of signal i sent..So anyone here know what is the problem of this and any method can help me solve it?
I cant get the result i wan at the receiver side (example light on a LED when pressed a button in transmitter side), since when i was directly connected UART pin (RC6) at tx side to uart pin (RC7) at rx side it is work what i want.
I am very appreciate to anyone can help me to solve it...THANK!
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