Mr RB
Well-Known Member
Hi, I made this a few days back but only got around to putting it up today.
It's a complete temperature controller for a small paint curing oven, using LM335 sensor and a relay to drive the "heater" which is some light bulbs.
A rotary encoder knob sets the temperature, and a button resets the 999 hour count-up timer 000:00:00. Display and control resolution is 0.5'C steps and range is the full range of the LM335; -40'C to +100'C (although this oven will only see about 30'C to 70'C).
WARNING!
This project uses some mains voltage wiring. This involves wiring up a mains
voltage transformer, and a mains-rated control relay. Please do not attempt
mains powered projects unless you are sure you can do this safely!
**broken link removed**
It's nothing too fancy to look at as it was put together fairly quickly, but it is a good performance temperature controller for the simple job of a drying oven.
The full project is here;
SH1_Temp2 Temperature Controller
The PIC 12F675 based controller is built on the cheap little Shift1-LCD board I designed recently;
Shift1-LCD Projects
It's a complete temperature controller for a small paint curing oven, using LM335 sensor and a relay to drive the "heater" which is some light bulbs.
A rotary encoder knob sets the temperature, and a button resets the 999 hour count-up timer 000:00:00. Display and control resolution is 0.5'C steps and range is the full range of the LM335; -40'C to +100'C (although this oven will only see about 30'C to 70'C).
WARNING!
This project uses some mains voltage wiring. This involves wiring up a mains
voltage transformer, and a mains-rated control relay. Please do not attempt
mains powered projects unless you are sure you can do this safely!
**broken link removed**
It's nothing too fancy to look at as it was put together fairly quickly, but it is a good performance temperature controller for the simple job of a drying oven.
The full project is here;
SH1_Temp2 Temperature Controller
The PIC 12F675 based controller is built on the cheap little Shift1-LCD board I designed recently;
Shift1-LCD Projects
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