Cold process [Sketch]

[juanstdio]

The goal is make the Arduino sketch to cool down 1 L of distilled water to a temperature of (=ambient - 17°C ) in an isolated environment only using the Peltier library. Guide of the library here

[juanstdio]

In the new code 0.0.4 there is a clue to make the process inverse.

just in the declaration of the object myPID,
Instead of using the PID DIRECT, like this
PID myPID(&Input, &Output, &Setpoint, consKp, consKi, consKd, DIRECT);

Only the direction and the "heat" (changed to cool) in order to make it decrease the temperature.
myPID(&Input, &Output, &Setpoint, consKp, consKi, consKd, REVERSE)
peltier1.cool(1,Output)

After that, version 0.0.6 might have cool and heat functions implemented, just than when you turn it on, you select what do you want to to, cool or heat.