-40%

LED Flasher Unit PCB for Warning Beacons on Diecast Models - 555 Timer

€ 2.37

Availability: 65 in stock
  • Condition: New
  • Brand: The RC Tractor Guy
  • Type: 555 Timer
  • Duty Cycle: 51.60%
  • Output Current: 15mA Max
  • Frequency: 7.267 Hz
  • Supply Voltage: 3.3 - 5V
  • Features: Built From Scratch
  • Unit Quantity: 40
  • Country/Region of Manufacture: Ireland

    Description

    This flasher unit PCB allows you to add flashing LED beacons to your static or radio controlled models. You can use it for a single LED beacon or dual LED beacons.
    Flasher Unit PCB Examples - YouTube
    Video will open in a new window
    Using the eBay App? Paste link into a browser window:
    [isdntekvideo]
    The PCB comes with connectors and housings so that you can easily connect to the circuit in your model. You will need to buy LEDs and resistors separately.
    You need to use a current limiting resistor to limit the current to 15 mA if your supply voltage is greater than the LED forward voltage. You can calculate the resistance using the following formula:
    Resistor Value (
    Ω) = (Supply Voltage (V) - LED Forward Voltage (V))/Desired Current (A)
    It is pretty common to get 470 Ohm resistors with LEDs when you buy them from ebay sellers as that is a high enough resistance to ensure you are below 15 mA at 5 V for most LEDs.
    In this example I use the flasher unit PCB to add beacons to a Siku Control 32 Fendt 930 model.
    Adding beacons to a Siku Control 32 Fendt 930 - YouTube
    Video will open in a new window
    Using the eBay App? Paste link into a browser window:
    [isdntekvideo]