Difference between revisions of "Wireless Weather Sensors"
From Makers Local 256
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m (→Overview: Updated with list of wants and needs) |
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== Overview == | == Overview == | ||
Designed to be simple to build, low parts cost, and low maintenance. | Designed to be simple to build, low parts cost, and low maintenance. | ||
| + | |||
| + | Needs: | ||
| + | * Wirelessly transmit temperature and relative humidity to a main unit. | ||
| + | * Run off a single AA, two AA, or a 9v battery | ||
| + | |||
| + | Wants: | ||
| + | * Two pins who's grounded status could be reported (think a door sensor, or something) | ||
| + | * Two pins that could be set to send 3.3v or 5v to run an relay | ||
| + | * Thermostat control? | ||
| + | * Bluetooth? | ||
== Status == | == Status == | ||
Revision as of 00:13, 30 November 2010
Overview
Designed to be simple to build, low parts cost, and low maintenance.
Needs:
- Wirelessly transmit temperature and relative humidity to a main unit.
- Run off a single AA, two AA, or a 9v battery
Wants:
- Two pins who's grounded status could be reported (think a door sensor, or something)
- Two pins that could be set to send 3.3v or 5v to run an relay
- Thermostat control?
- Bluetooth?
Status
In progress
Parts
| Name | Price for 10 units | AVR pins required | Link |
|---|---|---|---|
| RFM22B-S2 Wireless Transceiver | $10.79 | 4(SPI) | http://www.sparkfun.com/products/10153 |
| DHT22 Humidity and Temperature Sensor | $8.96 | 1 (i think) | http://www.sparkfun.com/products/10167 |
