HardLabs

WaterTankMonitor

ncolomer·WaterTankMonitor·Schematics/Water Tank Monitor.kicad_pcb

WaterTankMonitor PCB layout, top view — open source AVR/Arduino board by ncolomer

About the WaterTankMonitor PCB

WaterTankMonitor is an open source AVR/Arduino PCB design by ncolomer, published on GitHub under the Unlicense license. It is a 2-layer board measuring 35.4 × 39.4 mm, with 19 components from 14 distinct parts.

Its main chip is the ATMEGA328P-AU, from the AVR/Arduino family. By type, the board carries 5 connectors, 5 capacitors, 4 resistors, 1 IC, 1 crystal and 1 diode.

It belongs with the displays & leds, iot & wireless and sensors designs in this gallery.

From the project

A DIY water level monitoring system

This repo contains all the necessary assets to build a module monitoring and displaying the level of water in a water tank. The PCB layout was designed to fit in a Legrand Mosaic obturateur, hence compatible with any Mosaic Support.

The project is hosted on Hackaday.io. See this blogpost for more details about the designing and building process.

The PCB was designed using Kicad. Project files can be found in the /Schematics directory.

WaterTankMonitor, from the project README
From the project README

Main components on the WaterTankMonitor

ATMEGA328P-AU

WaterTankMonitor bill of materials (BOM)

19 components, 14 distinct parts.

QtyPartRefs
1
ATMEGA328P-AU
ATmega328P-A
Microchip
U1
1
CSTNE16M0V530000R0
16MHz
Murata
Y1
2
B4B-XH-A
Conn_01x04
JST
J1, J3
1
https://www.aliexpress.com/item/1005006410708666.html
Conn_01x04
J4
1
ICSP
J5
1
FTDI
J6
1
3314J-1-103E
10k
Bourns
RV1
1
3314G-1-103E
10k
Bourns
RV2
1
SML-D12D8WT86
LED
ROHM
D2
4
CC0603KPX7R7BB104
0.1uF
Yageo
C1, C2, C4, C5
1
CC0603MRX5R7BB106
10uF
Yageo
C3
1
CRCW06031K00FKEA
1k
Vishay
R1
1
CRCW060310K0FKEA
10k
Vishay
R2
2
CRCW06034K70FKEA
4.7k
Vishay
R3, R4

WaterTankMonitor design files

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

WaterTankMonitor: common questions

What microcontroller does the WaterTankMonitor use?

The WaterTankMonitor is built around the ATMEGA328P-AU, from the AVR/Arduino family.

How big is the WaterTankMonitor PCB?

The WaterTankMonitor measures 35.4 × 39.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the WaterTankMonitor?

19 components, from 14 distinct parts. The full bill of materials is listed on this page.

Where can I download the WaterTankMonitor design files?

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

Can I use the WaterTankMonitor design in my own project?

Yes, under the terms of its Unlicense license, which ncolomer chose for the repository.

Can I test firmware for the WaterTankMonitor 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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