On the 4th of February, Public Lab and RISD's Digital+Media Department hosted a Thermal Flashlight Workshop. The workshop went great! All of the students managed to make a Thermal Flashlight in 3 hours, many of them had little to no electronics experience. This is particularly exciting as during the workshop we realized we had ordered 5 Volt Melexis sensors rather than 3 Volt sensor we had developed the circuit board. Thankfully, Jeff, Shannon and I were able to figure out a fix on the run. Attached is a circuit diagram for the Thermal Flashlight if you use a 5 Volt sensor rather than a 3 Volt sensor.

Parts list For a Thermal Flashlight with 5.5 V Melexis Sensor and Common Cathode LED.

• 1 Melexis MLX90614 non-contact IR thermometer (5v). Data sheet: http://www1.futureelectronics.com/doc/MELEXIS/MLX90614ESF-AAA.pdf
• 1 common-anode RGB LED
• 2 4.7k Ohm resistors
• 2 100 Ohm resistors
• 1 180 Ohm resistor
• 1 0.1 μF capacitor
• wire
• a breadboard or circuit board & soldering eqmt.
• Arduino
• 9v battery and holder