Today I am going to make a circuit of Remote tester using C945 transistor and photo-diode.We can use this circuit for checking all remotes.
Let's get started,
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Step 1: Take All Components As Shown Below
Step 2: Circuit Diagram
Connect all components according to the circuit diagram.
Step 3: Connect Transistor
Connect emmiter pin of transistor to -ve pin of the battery as solder in the picture.
Step 4: Connect LED to the Circuit
Next we have to connect LED to the circuit.
Solder -ve pin of LED to collector pin of the transistor and
solder +ve pin of LED to +ve of the battery.
Step 5: Connect Photo-diode
Now we have to connect photo-diode to the circuit.
Solder -ve leg of photo-diode to the base pin of the transistor and
solder +ve leg of the photo-diode to +ve pin of the battery as you can see in the picture.
Step 6: Circuit Is Ready
Now our remote tester circuit is ready.
HOW TO USE -
Press any button of Remote towards photo-diode.When we will press any button of remote towards photo-diode then LED will blink.If LED is not blinking then Remote is not working.
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