Hi Guys

Quick question here from an electronics beginner. My main interests are flashlights, so I want to mod a flashlight to be operated with a rf remote. The flashlight has a circuit board which cycles through modes as you click the switch. Is it as simple as replacing the switch with an RF receiver? Will something like a RF433 do the trick? Any advice would be welcome.

Joachim

 

That should work, but note that the receiver draws a continuous 4mA so your flashlight battery won't last more than a few weeks, depending upon battery size.

 

That should work, but note that the receiver draws a continuous 4mA so your flashlight battery won't last more than a few weeks, depending upon battery size.

Thanks for your quick reply. Adding an extra switch to cut off connection with the battery would be a good idea then. The battery is a 18650 3.7V cell. That means I'll have to find a receiver that works in that range or boost my voltage to 5V, but that will be too high for the flashlight driver.