Convert flashing LED to constant/steady LED Light

Thread Starter

dnaso

Joined Mar 1, 2016
1
Very limited knowledge when it comes to circuits, pardon my ignorance. I'm looking for a simple 'hack' for a paging device I just purchased.

Simple transmitter and receiver. Push a button on the transmitter, receiving device flashes an LED light for 8 seconds as well as plays a simple little chime. Kind of like a wireless doorbell - easy enough. Rather than the light on the receiver flashing for those 8 seconds, I need it to stay on as a constant/steady light for those 8 seconds. If that's possible, whats the best way to accomplish this?

Here is a picture of the circuit board on the receiver. I don't have a close up of the remote transmitter button but if that's needed, I can easily post.

Many thanks in advance for your help.

IMG_2742 2.jpg
 

Dodgydave

Joined Jun 22, 2012
8,589
Looks like the led is driven with negative pulses via R1 510r resistor, from pin1 of the chip, its possible its a Lm324, ideally you need a dvm to see where the pulses are from, it can be smoothed out with a capacitor and transistor to drive the led.
 
Top