Regulate the boiler temperature on a Rancilio Silvia espresso maker
Arduino
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Latest commit 86de2b7 Sep 29, 2012 James Sanford Use 5000ms relay time, rename some variables.
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README.md
silvia_pid.ino

README.md

###Arduino-based PID controller for Rancilio Silvia boiler temperature.

Maintain stable boiler temperature by reading the temp from a MAX6675 thermocouple amplifier and switching a solid state relay on/off.

LCD display and buttons to display actual temp, update the set point temp, and change the P I D values to tune the PID controller.

TODO:
- initialize settings from eeprom
- update changed settings to eeprom
- remove debugging Serial.print() statements