So this is my first AVR project which i thought is worth to share.
It is a simple Robot which is controlled by my TV remote.
How does It Work
IR Communication:
TV remotes uses Infra-red signals to communicate to TV. Remote have IR LED which sends IR signals. At receiving end (TV) has a IR receiver (normally TSOP 1738 sensor) to receive signals sent via remote. In Many remotes you can see IR LED on the front of the remote. Every button on Remote have a unique code which is stored in both TV and Remote memory. So whenever we press a button IR LED sends Code of the pressed Button to TV which then figure out code and take action accordingly.
TSOP 1738
This is the IR Receiver I have used in my project. It have 3 pins as shown below. OUT pin is the data pin which sends signals to Microcontroller. It is high by default that means when it has nothing to receive it will send 1 or +5v.
All buttons have individual code
(... To be continue)
It is a simple Robot which is controlled by my TV remote.
How does It Work
IR Communication:
TV remotes uses Infra-red signals to communicate to TV. Remote have IR LED which sends IR signals. At receiving end (TV) has a IR receiver (normally TSOP 1738 sensor) to receive signals sent via remote. In Many remotes you can see IR LED on the front of the remote. Every button on Remote have a unique code which is stored in both TV and Remote memory. So whenever we press a button IR LED sends Code of the pressed Button to TV which then figure out code and take action accordingly.
TSOP 1738
This is the IR Receiver I have used in my project. It have 3 pins as shown below. OUT pin is the data pin which sends signals to Microcontroller. It is high by default that means when it has nothing to receive it will send 1 or +5v.
All buttons have individual code
(... To be continue)
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