Ordered my RPi this morning from Amazon.com with free shipping, complete with an 8GB Class 10 SDHC Flash Memory Card and a WiFi USB adapter with high-gain antenna (same as the Adafruit one, but $10 less from China).
The shopping list now looks like the following (bold = purchased):
- 1 OpenSprinklerPi v1.2 board (need those 4 A/D channels)
- 1 ORP sensor probe
- 1 pH sensor probe
just the analog probes, no interface cards required as they’ll connect through the BNC connectors to the OSPi A/D solder points - 1 temperature sensor probe (likely analog to connect to an A/D port like the other probes)
- 1 ambient temperature sensor (preferably digital in the box (maybe) so I don’t have to use an A/D port)
- 1 “sunlight” phot cell sensor (optional later integration, preferably digital so I don’t have to use an A/D port)
- 1 probe container or something to harness the three probes together for constant immersion in the pool water
- 3 BNC connectors to mount on the box to interface to the analog sensors
- 1 Xively.com account for data collection in the cloud and charting on my tablet
- 1 Raspberry Pi Rev B 512MB board (’cause its the latest!)
- 1 8GB Class 10 SDHC Flash Memory Card
- 1 WiFi USB dongle
- 1 USB Keyboard with built-in USB hub (already have plenty of these)
- 1 USB Mouse (already have)
- 1 Monitor w/HDMI input (already have)
- 1 WiFi access point with internet connection (already have)
- For power, I would connect to my existing 24VAC feed going into my pool light controller
I need a name for the project… any ideas? OpenWaterMonitorPi (OWMPi)? (I like the WM in the name–can likely turn that zig zag into a resistor or water wave design (or both! 🙂