Description.
This is a simple remote controller
tester circuit based on infrared sensor IC TSOP 1738. TSOP 1836.etc When the IR
waves fall on the sensor it output changes to low state.This makes the
transistor Q1 ON and LED will blink according to the code contained in
the signal. So for press of each button the LED blinks in different
ways. This is a good indication of the working of remote.
Remote Tester Circuit
Notes .
This circuit can be used to test remotes operating in the 38Khz carrier
frequency.Almost all remotes fall into this category so no problem.
Examples
TV remote,USB & AC and others
Sensor Type
Transistor BC557,BC556
TSOP 1736 Sensor Infra Red
R1 = 330 ohm ¼ watt Resistor
R2 = 10k ohm ¼ watt Resistor
R3 = 1k ohm ¼ watt Resistor
led
Transistor BC557 data sheet
FEATURES
Low current (max. 100mA)
Low voltage (max. 65V).
APPLICATIONS
General purpose switching and amplification.
DESCRIPTION
PNP transistor in a TO-92; SOT54 plastic package.
