Difference between revisions of "Kiln temperature controller"
From Just in Time
| (6 intermediate revisions by the same user not shown) | |||
| Line 5: | Line 5: | ||
==Project notes== | ==Project notes== | ||
| − | * [[Media:max6675.pdf| | + | * [[Media:max6675.pdf|max6675 thermocouple-to-digital converter]] datasheet |
| + | |||
==Project Status== | ==Project Status== | ||
;2010-06-23: Switched to AVR (from SX). Hardware platform now ready (max6675, LCD, LCD backlight control, rotary encoder, 2 switches, relay + driver, transmitter, receiver, led and programming header). First test with 'hardcoded' oven program successful. module tests of max6676, rotary encoder, LCD and relay successfully completed. Total hardware cost: around €33,-, including K-type thermocouple probe. | ;2010-06-23: Switched to AVR (from SX). Hardware platform now ready (max6675, LCD, LCD backlight control, rotary encoder, 2 switches, relay + driver, transmitter, receiver, led and programming header). First test with 'hardcoded' oven program successful. module tests of max6676, rotary encoder, LCD and relay successfully completed. Total hardware cost: around €33,-, including K-type thermocouple probe. | ||
| − | [[Image:Oven_controller_top.jpg|500px| | + | [[Image:Oven_controller_top.jpg|500px]] [[Image:Oven controller pcb.jpg|500px]] |
| + | |||
| + | ==Comments? Questions?== | ||
| + | {{ShowComments|show=True}} | ||
| − | |||
| − | |||
| − | |||
[[Category:AVR]] | [[Category:AVR]] | ||
Latest revision as of 15:36, 28 March 2015
General description
This circuit is intended to control a pottery oven. It uses the MAX6675 thermocouple-to-digital converter to measure oven temperatures. An oven schedule will consist of a list of (s, d)-tuples, where s stands for time in seconds and d for temperature in degrees Celcius. When started, the AVR should work through the list of tuples and for each tuple move to desired temperature d taking s seconds to get there.
The circuit uses an LCD display, a rotary encoder and two buttons for its user interface. The oven is controlled through a relay. Since the oven will be in a shed and the users would like to monitor the ovens progress from home, the controller will send its status periodically through a (cheap) 433Mhz transmitter. The See the Wireless LCD display project (which is finished).
Project notes
Project Status
- 2010-06-23
- Switched to AVR (from SX). Hardware platform now ready (max6675, LCD, LCD backlight control, rotary encoder, 2 switches, relay + driver, transmitter, receiver, led and programming header). First test with 'hardcoded' oven program successful. module tests of max6676, rotary encoder, LCD and relay successfully completed. Total hardware cost: around €33,-, including K-type thermocouple probe.
Comments? Questions?
{{#set: |Article has average rating={{#averagerating:}} }} {{#showcommentform:}}
{{#ask: Belongs to article::Kiln temperature controllerModification date::+
| ?Has comment person | ?Has comment date | ?Has comment text | ?Has comment rating | ?Belongs to comment | ?Comment was deleted#true,false | ?Has comment editor | ?Modification date | ?Has attached article | format=template | template=CommentResult | sort=Has comment date | order=asc | link=none | limit=100
}}