Fall Electronics session 2021
Easy circuit to transmit and receive audio through an LED
We are using the 555 chip to make an oscillator (Osc). Our audio signal changes the frequency of the Osc.
This signal drives a transistor with Infrared LED collector load........
We think any voltage controlled oscillator circuit will do. We think so
On the receiver side, a photodiode converts this light back to current. Circuit then followed with an I-V converter (a simple resistor).......
And rest is audio..It works
Date and Time
- Date: 09 Oct 2021
- Time: 09:00 AM to 11:00 AM
- All times are (GMT-05:00) Canada/Eastern
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