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Snooping on an IR receiver with a microcontroller

For non-interferance design in an isolated supply (I drew a battery but you can use an isolated DC-to-DC module) to power the input side of the optocoupler and the amplifier that allows connection to ...
Jasen  Слава Україні's user avatar
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Snooping on an IR receiver with a microcontroller

The IR signal used for remote controls usually uses a carrier (38 kHz is common.) The IR receiver demodulates this signal to the baseband data line. So you don't have access to the 'raw' IR signal ...
hacktastical's user avatar
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TCRT5000 combined with ESP8266 ADC voltage divider

Your second schematic would work, but the transistor in the sensor has a saturation voltage of 0.4 V at full reflection. So this way the usable ADC range would be 0.4 to 1 V. If you put the divider in ...
Jens's user avatar
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Hacking a vacuum fluorescent display from an old DVD player

Interfacing with Arduino is perfectly possible. In the past I also have recovered some Vaccum Fluorescent Displays from retired equipament for use with MSP430 and ARM Cortex MCUs in personal projects. ...
Dirceu Rodrigues Jr's user avatar
4 votes

Hacking a vacuum fluorescent display from an old DVD player

Your Arduino can be connected to where the MCU is shown in the schematic in the drive datasheet. IC pins 6 (maybe), 7, 8, 9. Trace those pins out. Dout may not be used, just a pullup, but trace it out....
Spehro Pefhany's user avatar
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Determine polarity of IrED with multimeter

I experienced the same, new and surprising to me, phenomena today. In contrast to the other answer I would bet the polarity is pin 1 = anode. That is, the larger voltage drop is the forward bias. Here'...
Heath Raftery's user avatar

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