Difference between revisions of "Programmable Thermostat Project"
From Makers Local 256
m (→Requirements: minor tweak to wording to make things clear) |
(→Requirements: clarify terms and reword where necessary) |
||
| Line 19: | Line 19: | ||
** Built-in temp sensor? | ** Built-in temp sensor? | ||
* Have certain software capabilities | * Have certain software capabilities | ||
| − | ** | + | ** Occupied hot target with hot-side hysteresis |
| − | ** | + | ** Unoccupied hot target with hot-side hysteresis |
| − | ** | + | ** Occupied cold target with cold-side hysteresis |
| − | ** | + | ** Unoccupied cold target with cold-side hysteresis |
| + | ** Transition from occupied to unoccupied state after a timeout and audible alarm | ||
| + | ** Local or remote user can silence alarm and reset timeout | ||
Revision as of 20:05, 25 January 2011
Description
A programmable thermostat is required to keep costs down while keeping everyone as happy as possible with the temperature of the shop.
Requirements
The programmable thermostat should:
- Be remote controllable (all features)
- Wifi, indirect network connection such as serial to a laptop, xbee
- Be able to control a heating device via 120V relay
- 1 GPIO
- Be able to control a cooling device via 120V relay
- 1 GPIO
- Be able to control a heating or cooling device by remote means
- Currently, X10 and X10 via network proxy are options
- Have a user interface for people to interact with at the physical location
- LCD with buttons
- Be able to monitor temperature accurately in one or more locations
- DS18B20+ temp sensors
- USB temperature sensor?
- Built-in temp sensor?
- Have certain software capabilities
- Occupied hot target with hot-side hysteresis
- Unoccupied hot target with hot-side hysteresis
- Occupied cold target with cold-side hysteresis
- Unoccupied cold target with cold-side hysteresis
- Transition from occupied to unoccupied state after a timeout and audible alarm
- Local or remote user can silence alarm and reset timeout
