I have built a transmitter/receiver with an antenna and crystal. I am wondering if it is stable.
Here is my transmitter:
Here is my receiver:
I read in the data with my Arduino (using analogRead(pin)) and print it out to the console. I get: 670, 671 & 673 when it is idle. When I apply about 3.53V to the the antenna, my crystal reads: 690 & 691. I added a button so when I press the button the Arduino gives 3.53V to the antenna. I added two LEDs (one yellow one red) to the program, the yellow one would light up if the reading from the crystal was < or = to 670 but less than 675. The red LED lights up if the reading from the crystal is greater than 675. I see very buggy behavior sometimes, the red LED lights up even when I don't apply a signal to the antenna. Though I have never seen the reading go more than 673 when not applying any voltage to the antenna. Any suggestions? Thanks!
I am new to E.E. so i'm sorry if my schematic is a little off.