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NH-AirQuality

NottingHack·NH-AirQuality

NH-AirQuality PCB layout, top view — open source AVR/Arduino board by NottingHack

About the NH-AirQuality PCB

NH-AirQuality is an open source AVR/Arduino PCB design by NottingHack, published on GitHub. It is a 4-layer board measuring 90.5 × 53 mm, with 65 components from 37 distinct parts.

Its main chip is the ATmega328P-M, from the AVR/Arduino family. Other key parts include the W5500, INA219AxD, SGP40-D-R4, SCD40-D-R1 and AMS1117-3.3. By type, the board carries 24 capacitors, 20 resistors, 7 ICs, 5 diodes, 4 connectors and 3 inductors.

Main components on the NH-AirQuality

ATmega328P-MW5500INA219AxDSGP40-D-R4SCD40-D-R1AMS1117-3.3

NH-AirQuality bill of materials (BOM)

65 components, 37 distinct parts.

QtyPartRefs
1
ATmega328P-M
U1
1
~
U2
1
W5500
U3
1
INA219AxD
U4
1
SGP40-D-R4
U5
1
SCD40-D-R1
U6
1
AMS1117-3.3
U7
1
25M
Y1
1
ABM3-16.000MHZ-D2Y-T
16M
Y2
1
AVR-ISP-6
J1
1
RJ45_Hanrun_HR911105A_Horizontal
J2
1
PMSA003
J3
1
Power
J4
1
SSB2H60H
D1
3
LED
D2, D3, D5
1
SMAJ58A
D4
2
120
FB1, FB2
1
NR4018T470M
47u
L1
4
QSCP251Q180J1GV001T
18p
C1, C3, C7, C8
1
100n
C2
Show 17 more
QtyPartRefs
1
0.01u
C4
2
10n
C5, C11
1
4.7u
C6
1
100u
C9
3
10u
C10, C12, C24
1
22n
C13
10
1u
C14, C15, C16, C17, C18, C19, C20, C21 +2
1
30.1K
R1
1
3.16K
R2
5
10K
R3, R11, R12, R16, R17
1
12.4k
R4
1
0.1
R5
4
560112116133
49.9
R6, R7, R8, R9
1
10
R10
4
100
R13, R14, R19, R20
1
4.7
R15
1
1K
R18

NH-AirQuality design files

The KiCad project lives in the NottingHack/NH-AirQuality repository on GitHub; these links point at the commit this page was built from.

NH-AirQuality: common questions

What microcontroller does the NH-AirQuality use?

The NH-AirQuality is built around the ATmega328P-M, from the AVR/Arduino family.

How big is the NH-AirQuality PCB?

The NH-AirQuality measures 90.5 × 53 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the NH-AirQuality?

65 components, from 37 distinct parts. The full bill of materials is listed on this page.

Where can I download the NH-AirQuality design files?

From the NottingHack/NH-AirQuality repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the NH-AirQuality design in my own project?

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

Can I test firmware for the NH-AirQuality 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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