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# Solder the LED

If you have purchased a kit you may already have an assembled soldered LED cable

## For this section you will need:

### Tools

- 1 heatgun - If a heatgun is not available, the soldering iron can be used.
- 1 precision wire cutters
- 1 soldering iron
- 1 wire strippers

### Consumables

- a little solder

### Electronic Components

- 1 150 Ohm Resistor - The exact value will depend on the current rating of your LED.
- 1 2 pin Du Pont connector female housing
- 40 mm of Black heatshrink - 4.8mm ID
- 1 Black pre-crimped Female-Female jumper cable (30 cm)
- 35 mm of Red heatshrink - 2.4mm ID
- 1 Red pre-crimped Female-Female jumper cable (30 cm)
- 1 Warm white 5mm LED

## Step 1: Solder the resistor to the LED

- Tun on your soldering iron so it can heat up
- Take the LED
- Cut the longest leg down to about 5mm long using precision wire cutters
- Tin this leg with solder
- Take a 150 Ohm Resistor and cut each leg down to about 5mm long.
- Tin both legs with solder
- Solder one side of the resistor to the cut leg of the LED.
- Cut the other leg of the LED to be the same height as the end of the resistor.
- Tin the end of this leg

## Step 2: Solder cables

- Take the red and black precrimped jumper cables and cut off one end with precision wire cutters
- Strip about 5mm of cable on each, and tin the cable with wire strippers
- Solder the red wire to the leg with the resistor
- Solder the black wire to the other leg
- Take the red heatshrink and slide it over the red cable up to the LED.
- Use a heatgun to shrink the heatshrink
- Take the black heatshrink and slide it over both cables up to the LED.
- Use a heatgun to shrink the heatshrink

## Step 3: Add the connector

- Take the DuPont housing
- Push both connectors from the LED cable into the connector

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