HardLabs

Turbimeter Citizen science

alexmanuel27·Turbimeter_Citizen_science·hardware/esque.kicad_pcb

Turbimeter Citizen science PCB layout, top view — open source AVR/Arduino board by alexmanuel27

About the Turbimeter Citizen science PCB

Turbimeter Citizen science is an open source AVR/Arduino PCB design by alexmanuel27, published on GitHub. It is a 2-layer board measuring 54.7 × 39.7 mm, with 11 components from 5 distinct parts.

Its main chip is the Arduino_Nano_v2.x, from the AVR/Arduino family. By type, the board carries 5 resistors, 3 diodes, 2 connectors and 1 module.

It belongs with the displays & leds and test & measurement designs in this gallery.

From the project

This repository tracks a single, quantitative turbidimeter prototype. The target is to have the instrument, Android app, calibration, and validation ready by 18 October 2026. Community deployment follows that date.

This repository tracks a single, quantitative turbidimeter prototype. The target is to have the instrument, Android app, calibration, and validation ready by 18 October 2026. Community deployment follows that date.

- Sensor: 850 nm IR LED, BPW34 photodiode at 90° for scattered light, and a second BPW34 to monitor the LED. An MCP6002 dual amplifier and ADS1115 read the two channels; an Arduino Nano compatible board controls the LED. - Readout: the Android phone supplies power through USB-C, displays the result, and uploads measurements to the citizen-science website. The instrument has no…

Turbimeter Citizen science, from the project README
From the project README

Main components on the Turbimeter Citizen science

Arduino_Nano_v2.x

Turbimeter Citizen science bill of materials (BOM)

11 components, 5 distinct parts.

QtyPartRefs
1
Arduino_Nano_v2.x
A1
1
Conn_01x03_Pin
J2
1
Conn_01x04_Pin
J3
3
LED
D1, D2, D3
5
R
R1, R2, R3, R5, R6

Turbimeter Citizen science design files

The KiCad project lives in the alexmanuel27/Turbimeter_Citizen_science repository on GitHub; these links point at the commit this page was built from.

Turbimeter Citizen science: common questions

What microcontroller does the Turbimeter Citizen science use?

The Turbimeter Citizen science is built around the Arduino_Nano_v2.x, from the AVR/Arduino family.

How big is the Turbimeter Citizen science PCB?

The Turbimeter Citizen science measures 54.7 × 39.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Turbimeter Citizen science?

11 components, from 5 distinct parts. The full bill of materials is listed on this page.

Where can I download the Turbimeter Citizen science design files?

From the alexmanuel27/Turbimeter_Citizen_science repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Turbimeter Citizen science design in my own project?

The repository has no license, so all rights stay with alexmanuel27. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Turbimeter Citizen science without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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