Circuit Diagrams for 5V Melexis Sensor
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
| Attachment | Size |
|---|---|
| thermal-flashlight5VSensor.fzz_.zip | 23.66 KB |
| thermal-flashlight5VSensor3VLED.fzz_.zip | 24.22 KB |
PDF version
Comments
This diagram has one small mistake-- the power to the LED is not actually hooked up. Move it across the board divider so it is connected to the LED power pin.
Should look like this, will post drawing later
Do you have the code to enter into the Arduino card? I could not find a link to it. (thanks!)
Hey Y'all,
I fixed the picture! Thanks for noticing the problem.
Sara
Also I should note that Leif, has designed a circuit board where both the LED and sensor use 5 volts-I'm going to ask him to put together that circuit diagram.
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