The emeralds are normally lit, and the rubies come on when it's warm outside.
The diamonds flash when cold, and you can set the pattern with a mimeolight.

• temperature learning sensor
• mimeolight
• 6 lightboards: ruby, emerald, diamond
• push switch
• velcro switch
• conductive thread
• large 3-volt battery
• large, soft battery holder
• a piece of fabric to work on

• a needle
• fabric paint (for insulation)
• fabric glue (to prevent thread unravelling)
• a pair of scissors

Place your components on the fabric, and decide how to sew them together with the fewest number of thread crossings. Some components are attached on the other side of the fabric.

Here is a sketch of the design.

• black for ground (-)
• orange for ruby lightboards
• green for emerald lightboards
• dark gray for power to the mimeolight
• gray for diamond lightboards
• purple for the calibration switch
• red for power (+)

And this is a summary of the sewing steps

1. Sew the ground connections of every component together.
2. Sew the ruby lights to the learning sensor.
3. Attach the emerald lights.
4. Connect the mimeolight's power to the learning sensor.
5. Sew the diamond lights to the mimeolight.
6. Attach the push switch to the learning sensor.
7. Connect battery power (+) to the velcro switch.
8. Sew the other side to the learning sensor.

With a double-threaded stitch, secure the ground connections to all the lightboards. Make several passes with the thread at each lightboard before moving to the next.

Do the same with the battery holder, learning sensor, mimeolight, and push switch.
Tie a knot and cut the thread after connecting all 10 components.

With a new piece of thread, connect (+) on the two ruby lightboards, and stitch towards the temperature sensor.

Just before reaching the sensor, test your lights by touching the needle to the (+) on the battery holder. If they light up, connect the thread to the "H" on the temperature sensor.

Repeat the process for the emerald lightboards.
Always cut your thread after each pair of lights is connected.
Remember to double-thread your stitches, and keep them as short as possible.

If any light is dimmer than the others, there might be too much resistance.
You might need to make another identical stitch to reduce it.