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Benzene--Toluene--Acetone--Formaldehyde sensor-MQ138-breakout with easyC-hardware design

SolderedElectronics·Benzene--Toluene--Acetone--Formaldehyde-sensor-MQ138-breakout-with-easyC-hardware-design·CAD/V1.1.1/MQ Breakout.kicad_pcb

Benzene--Toluene--Acetone--Formaldehyde sensor-MQ138-breakout with easyC-hardware design layout, top view — open source AVR/Arduino board by SolderedElectronics
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About the Benzene--Toluene--Acetone--Formaldehyde sensor-MQ138-breakout with easyC-hardware design

Benzene--Toluene--Acetone--Formaldehyde sensor-MQ138-breakout with easyC-hardware design is an open source AVR/Arduino PCB design by SolderedElectronics, published on GitHub under the TAPR-OHL-1.0 license. It is a 2-layer board measuring 22 × 54 mm, with 26 components from 16 distinct parts.

Its main chip is the ATTINY404-SSNR, from the AVR/Arduino family. Other key parts include the MQ-X, NMOS-DUAL and TPS613222A. By type, the board carries 6 resistors, 4 ICs, 4 relays, 4 capacitors, 2 jumpers and 1 diode.

It belongs with the sensors and dev boards & breakouts designs in this gallery.

From the project

Hardware design, BOM, gerbers and 3D files for Benzene,-Toluene,-Acetone,-Formaldehyde-sensor-MQ138-breakout-with-easyC designed by Soldered Electronics.

The MQ138 sensor is specifically designed to detect various gases, with a primary focus on air quality monitoring. While its main target gas is formaldehyde (HCHO), it is also sensitive to a range of other gases, including volatile organic compounds (VOCs) such as toluene, alcohol, acetone, and hydrogen, as well as other harmful gases commonly found in the environment. It requires a short time to heat up in order to work correctly.

Benzene--Toluene--Acetone--Formaldehyde sensor-MQ138-breakout with easyC-hardware design, from the project README
From the project README

Main components on the Benzene--Toluene--Acetone--Formaldehyde sensor-MQ138-breakout with easyC-hardware design

MQ-XNMOS-DUALTPS613222AATTINY404-SSNR

Benzene--Toluene--Acetone--Formaldehyde sensor-MQ138-breakout with easyC-hardware design bill of materials (BOM)

26 components, 16 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MQ-X
U1
1
NMOS-DUAL
U2
1
TPS613222A
U3
1
ATTINY404-SSNR
U4
4
HOLE_3.2mm
H1, H2, H3, H4
2
SMD_JUMPER_3_PAD_TRACE
JP1, JP2
2
easyC-SMD
K1, K3
1
HEADER-UPDI
K2
1
DSHP03TS-S
K4
1
purple
D1
1
DFE201612E-2R2M=P2
L1
2
CL10A226MPCNUBE
C1, C2
1
C1608X7S1A475K080AC
C3
1
100n
C4
5
10k
R1, R2, R3, R4, R5
1
2k2
R6

Benzene--Toluene--Acetone--Formaldehyde sensor-MQ138-breakout with easyC-hardware design design files

The KiCad project lives in the SolderedElectronics/Benzene--Toluene--Acetone--Formaldehyde-sensor-MQ138-breakout-with-easyC-hardware-design repository on GitHub; these links point at the commit this page was built from.

Benzene--Toluene--Acetone--Formaldehyde sensor-MQ138-breakout with easyC-hardware design: common questions

What microcontroller does the Benzene--Toluene--Acetone--Formaldehyde sensor-MQ138-breakout with easyC-hardware design use?

The Benzene--Toluene--Acetone--Formaldehyde sensor-MQ138-breakout with easyC-hardware design is built around the ATTINY404-SSNR, from the AVR/Arduino family.

How big is the Benzene--Toluene--Acetone--Formaldehyde sensor-MQ138-breakout with easyC-hardware design?

The Benzene--Toluene--Acetone--Formaldehyde sensor-MQ138-breakout with easyC-hardware design measures 22 × 54 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Benzene--Toluene--Acetone--Formaldehyde sensor-MQ138-breakout with easyC-hardware design?

26 components, from 16 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 Benzene--Toluene--Acetone--Formaldehyde sensor-MQ138-breakout with easyC-hardware design design files?

From the SolderedElectronics/Benzene--Toluene--Acetone--Formaldehyde-sensor-MQ138-breakout-with-easyC-hardware-design 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 Benzene--Toluene--Acetone--Formaldehyde sensor-MQ138-breakout with easyC-hardware design design in my own project?

Yes, under the terms of its TAPR-OHL-1.0 license, which SolderedElectronics chose for the repository.

Can I test firmware for the Benzene--Toluene--Acetone--Formaldehyde sensor-MQ138-breakout with easyC-hardware design 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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