Bill of Materials
ZeMo Parts
Item | Quantity | Price | Description | |
---|---|---|---|---|
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Custom ZeMo Case |
1 |
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The custom 3D printed case houses the ZeMo hardware. |
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Custom ZeMo Circuit BoardOSH Park |
1 |
$11.65 |
This board houses the EZO™ circuit boards and the BNC connectors. We recommend 2oz copper for best results. |
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EZO™ pH CircuitAtlas Scientific #EZO-pH |
1 |
$38.00 |
This converts the reads of the pH probe into a form that the Raspberry Pi can read. |
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pH ProbeAtlas Scientific #ENV-40-pH |
1 |
$72.00 |
This probe collects the pH data and connects to the female BNC connector on the pH circuit. |
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pH 7.0 Calibration SolutionAtlas Scientific #chem-pH-7 |
1 |
$9.00 |
This is a pH standard used for calibration. |
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pH 4.0 Calibration SolutionAtlas Scientific #chem-pH-4 |
1 |
$9.00 |
Optional.This is a pH standard used for calibration. It is only necessary for 2 and 3 point pH calibrations. |
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pH 10.0 Calibration SolutionAtlas Scientific #chem-pH-10 |
1 |
$9.00 |
Optional.This is a pH standard used for calibration. It is only necessary for 3 point pH calibrations. |
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EZO™ Dissolved Oxygen CircuitAtlas Scientific #EZO-DO |
1 |
$44.00 |
This converts the reads of the pH probe into a form that the Raspberry Pi can read. |
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Dissolved Oxygen ProbeAtlas Scientific #ENV-40-DO |
1 |
$198.00 |
This probe collects the pH data and connects to the female BNC connector on the pH circuit. |
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Dissolved Oxygen Test SolutionAtlas Scientific #chem-DO |
1 |
$18.00 |
This solution is used for calibrating the dissolved oxygen probe. |
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EZO™ Conductivity CircuitAtlas Scientific #EZO-EC |
1 |
$58.00 |
This converts the reads of the conductivity probe into a form that the Raspberry Pi can read. |
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EZO™ Conductivity Probe K 1.0Atlas Scientific #ENV-40-EC-K1.0 |
1 |
$126.00 |
This probe collects the pH data and connects to the female BNC connector on the pH circuit. |
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Conductivity Calibration K 1.0 SetAtlas Scientific #chem-EC-1.0 |
1 |
$11.00 |
This solution is used for calibrating the dissolved oxygen probe. |
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EZO™ Inline Voltage IsolatorAtlas Scientific #BE-IVI |
2 |
$24.00 |
This isolates the incoming signal from the probes, preventing crosstalk between probes. |
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EZO™ Right BNC ConnectorDigikey #WM5514-ND |
4 |
$2.15 |
This isolates the incoming signal from the probes, preventing crosstalk between probes. |
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Raspberry Pi Zero WHAdafruit #3708 |
1 |
$14.00 |
This is the mini computer that combines all the reads and sends them to our server via a WiFi connection. |
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PiTFT Plus 2.8" Resistive TouchscreenAdafruit #2298 |
1 |
$34.95 |
This display connects to the Raspberry Pi, allowing users to view reads locally, calibrate meters, and adjust settings. |
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4GB MicroSD CardAdafruit #102 |
1 |
$7.95 |
This stores the operating system for ZeMo on the Raspberry Pi. |
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Male to Female Jumper WiresAdafruit #3633 |
1 |
$2.95 |
These are used to connect the ZeMo circuit board to the Raspberry Pi. |
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Jumper Wire HousingAdafruit #3143 |
1 |
$1.95 |
This allows the jumper wires to connect to the circuit board. |
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Brass StandoffsAdafruit #2336 |
3 |
$2.25 |
These secure and support the screen and Raspberry Pi. |
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MicroUSB to USB CableAdafruit #2185 |
1 |
$4.95 |
This cable connects the Raspberry Pi to the power supply and allows users to easily connect to the Pi after assembly to update software or troubleshoot issues. |
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5W USB Power SupplyAdafruit #1994 |
1 |
$6.95 |
This provides the power for the Raspberry Pi. |
Tools for Assembly
Item | Quantity | Price | Description | |
---|---|---|---|---|
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Soldering IronAdafruit #3685 |
1 |
$19.95 |
Some basic soldering is necessary for the hardware assembly.. |
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Solder WireAdafruit #1886 |
1 |
$5.95 |
Some basic soldering is necessary for the hardware assembly. |
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BreadboardAdafruit #64 |
1 |
$5.00 |
A breadboard is optional, but may be helpful for setting the EZO™ circuits. |
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Electrical Tape |
Electrical tape can be used to insulate the jumper wires. |