555 using TV Remote Control ON-OFF Switching

346

03:55:01

Left 5 volt battery is television remote control.  NPN Transistors is replaced with L14F1 npn silicon photodarlingtons (narrow reception angle) (940 nm wavelength)  in black tube sleeve so you can aim remote or perhaps laser pointer light at separate photo sensor- at top for OFF or lower sensor for ON.  Two 1M ohm adjustable resistors to set sensitivity of each photodarlington.  Daylight may turn these on if sensitivity is too high.  Both diodes are 1N4148's.  Press television remote on/ off button at selected photo sensor.

published 11 years ago

ALEX18

11 years ago

😱

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.