Hi
I want view the signal emitted from an IR remote control on an oscilloscope. I have a 3-pin IR receiver but no power supply. Is it possible to take the USB cable from the computer, cut it and put a resistor in between it and Vcc on the diode to power the diode? Note I dont have any 78xx voltage regulator.. but IR receiver needs 4.5V/3mA minimum
I want view the signal emitted from an IR remote control on an oscilloscope. I have a 3-pin IR receiver but no power supply. Is it possible to take the USB cable from the computer, cut it and put a resistor in between it and Vcc on the diode to power the diode? Note I dont have any 78xx voltage regulator.. but IR receiver needs 4.5V/3mA minimum