Public Lab Wiki documentation



Thermal Fishing Bob Barnraising!!

5,787 views | Last edited by sara over 5 years ago | #9406


We worked on a version of thermal fishing bob described here:

http://publiclab.org/wiki/thermal-fishing-bob

We found there were problems with the circuit diagram shown in this wiki page.

This version uses a 10K Thermistor from Ada Fruit:

http://www.adafruit.com/products/372 It comes with a 1% 10K resistor which you can use as calibration or for a resistor divider

Additional parts: * 1 common-anode RGB LED * wire * a breadboard or circuit board & soldering eqmt. * Arduino * 9v battery and holder

Here is our first draft of the circuit board: Thermal_Fishing_Bob.jpg

Following the excellent Ada Fruit instructions changed the board to stabilize the voltage through the circuit:

Screen_Shot_2013-10-08_at_3.04.17_PM.png

Here is the arduino sketch:

We had some successful tests:

2013-10-05_20.46.08.jpg

IMAG2366.jpg

The circuit inside its repurposed Kool-Aid enclosure.

IMAG2367.jpg

We stabilized it with styrofoam cups.

IMAG2370.jpg

And deployed it in the bathtub.