Remote control tester ----- Remote Testing

Keywords: remote control tester In fact, the principle of circuit is very simple, just a Darrington tube equivalent circuit. When the infrared receiving tube D1 receives the infrared ray, D1 is turned on to turn the Direction of the triode V1 into a high potential, so that the C-pole and E E poles of V1 are turned on, so that the B of the V2 is extremely low, and the low potential is high. The C-pole and E are turned on, and the light emitting diode D2 lights up indication. V1 uses 3DG6 or 9014.v2 3dgl2 or 8050: D1 uses two foot infrared receiving tubes, D2 light-emitting diode; R1 uses a 500 kΩ color ring resistor, and K1 uses a small button switch; The shell is used to use the launch tube to be unconventional, the button is less than the lack of waste remote control. Install the battery, press the switch, align the receiving tube of the remote controller to the detected remote control, press the button of the tested remote control, the indicator of the remote controller will shine.

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