RF operated flashlight

Discussion in 'The Projects Forum' started by j-o-achim, May 23, 2016.

  1. j-o-achim

    Thread Starter New Member

    May 23, 2016
    3
    0
    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
     
  2. crutschow

    Expert

    Mar 14, 2008
    12,990
    3,226
    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.
     
  3. j-o-achim

    Thread Starter New Member

    May 23, 2016
    3
    0
    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.
     
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