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AquaNode

Projeto-Guarda-Rios·PCB·AquaNode - PCB/AquaNode - PCB/AquaNode - PCB.kicad_pcb

AquaNode PCB layout, top view — open source STM32 board by Projeto-Guarda-Rios
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About the AquaNode PCB

AquaNode is an open source STM32 PCB design by Projeto-Guarda-Rios, published on GitHub under the MIT license. It is a 2-layer board measuring 41.2 × 27.4 mm, with 25 components from 14 distinct parts.

Its main chip is the STM32L053R8TX, from the STM32 family. Other key parts include the AP2114H-3.3TRG1 and MAX3485. By type, the board carries 10 capacitors, 7 resistors, 4 connectors, 3 ICs and 1 diode.

It belongs with the power & battery and sensors designs in this gallery.

From the project

O repositório para a PCB do Projeto Guarda Rios! Inclui todos os ficheiros relacionados com a PCB!

This repository contains all PCB design files for the Guarda-Rios Project — an open-source, low-cost, low-power water quality monitoring system. Multiple stations are deployed along a river so that parameter spikes between adjacent stations reveal precisely where pollution enters the waterway.

The AquaNode is the submerged node of each station. It is built around an STM32L053R8 microcontroller (ultra-low-power) and integrates a DS18B20 water temperature sensor (1-Wire) and a DFRobot SEN0554 turbidity sensor. Readings are encoded into the custom Guarda-Rios protocol and transmitted to the…

Main components on the AquaNode

AP2114H-3.3TRG1STM32L053R8TXMAX3485

AquaNode bill of materials (BOM)

25 components, 14 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AP2114H-3.3TRG1
IC1
1
STM32L053R8TX
STM32L053R8Tx
U1
1
MAX3485
U2
1
CONN_01X03_SOCKET
Conn_01x03_Socket
J1
2
CONN_01X04_SOCKET
Conn_01x04_Socket
J2, J3
1
CONN_01X05_SOCKET
Conn_01x05_Socket
J5
1
SM712_SOT23
D1
6
100NF
100nF
C1, C2, C3, C5, C6, C10
3
4.7UF
4.7uF
C4, C7, C8
1
0.1UF
0.1uF
C9
4
10K
R1, R2, R6, R10
1
1.8K
R3
1
3.3K
R4
1
4.7K
R5

AquaNode design files

The KiCad project lives in the Projeto-Guarda-Rios/PCB repository on GitHub; these links point at the commit this page was built from.

AquaNode: common questions

What microcontroller does the AquaNode use?

The AquaNode is built around the STM32L053R8TX, from the STM32 family.

How big is the AquaNode PCB?

The AquaNode measures 41.2 × 27.4 mm, has 2 copper layers and is 1.600198 mm thick.

How many components are on the AquaNode?

25 components, from 14 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the AquaNode design files?

From the Projeto-Guarda-Rios/PCB repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the AquaNode design in my own project?

Yes, under the terms of its MIT license, which Projeto-Guarda-Rios chose for the repository.

Can I test firmware for the AquaNode without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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