Wires for IR LEDs

Use the following wires for connecting the IR LEDs to the QT Py.

  • 1x 2-pin JST cable (female)
  • 1x 100ohm resistor
  • 4x Wires

Trim Leads

Take a moment to trim the leads from the IR LEDs and resistor short.

Solder First IR LED

Solder two of the single wires to the pins on one of the IR LEDs.

Use pieces of heat shrink tubing to insulate the leads.

Solder Second IR LED

Two wires will be soldered to the anode pin on the second IR LED.

Connect the a new single wire AND the anode wire from the first IR LED to the anode pin on the second IR LED.

Wire Second IR LED

Two wires will be soldered to the cathode pin on the second IR LED.

Connect the a new single wire AND the cathode wire from the first IR LED to the cathode pin on the second IR LED.

Wired IR LEDs

Take a moment to check the wires have been properly soldered to the IR LEDs.

Solder Resistor

Connect the 100ohm resistor to the cathode wire from the two IR LEDs. 

JST Cable for IR LEDs

Use the 2-pin JST female cable to connect the IR LEDs to the QT Py. 

Ground Wire

Solder the 100ohm resistor to the black wire on the JST cable.

Signal Wire

Connect the remaining anode wire to the red wire on the JST cable.

Finished IR LEDs

Take a moment to check all of the wires have been properly soldered to the two IR LEDs.

This guide was first published on Jul 13, 2022. It was last updated on 2022-07-13 08:12:45 -0400.

This page (Wiring IR LEDs) was last updated on Jul 23, 2022.

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