Hydropi – Parts List
Here’s a list of all the materials that I used to make the Hydropi Pool Monitor.
- Raspberry Pi (Rev 2 or 3)
- Raspberry Pi power supply
- USB WiFi adaptor (required for non Rev 3 Raspberry Pi’s)
- 8Gb Micro SD card
The 4 items above can also be purchased in a variety of kits
- 2 x DS18B20 Temperature Sensors
Atlas Scientific Sensor Circuits
Atlas Scientific Sensors
These can also be bought as kits that include the circuit, BNC socket, sensor and calibration liquids all in one
Atlas Scientific’s documentation states that their pH, ORP and EC circuits will work with any off the shelf BNC probes, I haven’t tried connecting any other probes to the circuits so I can’t say whether they will work or not but if your budget doesn’t stretch to the Atlas probes the Neptune series of probes are cheaper and appear to have good reviews.
The 2 items above are now incorporated in one board providing both power isolation and sensor circuit mounting, this will free up a lot of breadboard space and also save you money, you will need one for each sensor you are connecting.
- 4 Way relay module
- Surface Mount AC power socket (Country specific, required to plug in the Pi power supply)
For the following 3 items I basically bought one of these and broke it down to use it’s parts, I’m sure that something similar is available in most countries with the required socket type.
When it comes to AC power the required items are quite country specific so I have only placed links as examples, you will need to do your own research to find the appropriate parts for your project, and again if you are not use to working with AC power then please get the advice of a professional.
- Wire Connector Screw Terminal Barrier Block
- 1 x plastic enclosure 250(l)x210(w)x130(h) (Minimum)
- 1.5mm (16 AWG) AC power cabling (Available from most hardware or electronic stores)
- Electrical Insulated Crimp Terminals
- Waterproof Cable Glands
- M3 Plastic mounting nuts, bolts and standoff’s
- Cable ties
- Apache Web Server
- Ninja IDE (Optional, used for writing python code)
- WeBuilder (Optional, used for coding webpages)
- Bootstrap 4 (Optional, used as a CSS framework for styling webpages)
These are all the items that I used to create this project, obviously there are other possible arrangements, if you have thought’s feel free to leave a comment below.