0x0A: 32 ch Taguchi gas sensor array

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Background

Please see the e-nose project page for an elaborate description as well as practical examples.

Function

This PCB breaks out the connections to thirtytwo Taguchi type gas sensors and effectively forms an array of sensors; the sensor part of an electronic nose.

License terms
The 0x0A design is published under the Creative Commons Unported 3.0 License.  I do not profit from this design, neither should you. You are welcome to adapt, modify, and redistribute this design as long as the license terms are respected.

Physical size of PCB

200 mm (width) by 100 mm (height). Double-sided. NB! The PCB contains 520 pins/pads meaning that you will need (minimum) a DipTrace Standard license (1.000 pins) to view the DipTrace design file. You can still view the Gerber files using for instance gerbv.

Rendering and photos

0x0A_3d_rendering

DipTrace 3D rendering without connectors (rev. 0)

0x0A_back

Photo of the PCB backside, terminal connector blocks mounted (rev. 0)

0x0A_sockets

Photo of the PCB frontside, sockets mounted (rev. 0)

0x0A_assembled

Photo of the fully assembled PCB (rev. 0)

0x0A_connector_terminal_block

Photo of the terminal connector block on the PCB frontside (rev. 0)

Bill of materials

32 pcs. Taguchi gas sensor socket, 6-pin

32 pcs. Taguchi gas sensor

32 pcs. resistor, form factor 1206 (SMD)

2 pcs. 36-pin header

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2 pcs. 36-pin terminal block connectors

Estimated cost

Thirtytwo Taguchi gas sensors, thirtytwo sockets, and two thirtysix-way connectors should not cost more than EUR 80,- depending on the type of sensors.

Downloads

Schematic PDF: 0x0Arev2_schematic

DipTrace v. 2.4 schematic file: 0x0Arev2_schematic

DipTrace v. 2.4 PCB design file: 0x0A DipTrace PCB

Gerber files: 0x0A Gerber files

Sensor datasheet, HW Sensor: MQ-2

Sensor datasheet, HW Sensor: MQ-3

Sensor datasheet, HW Sensor: MQ-4

Sensor datasheet, HW Sensor: MQ-5

Sensor datasheet, HW Sensor: MQ-6

Sensor datasheet, HW Sensor: MQ-7

Sensor datasheet, HW Sensor: MQ-8

Sensor datasheet, HW Sensor: MQ-9

Sensor datasheet, HW Sensor: MQ131

Sensor datasheet, HW Sensor: MQ135

Sensor datasheet, HW Sensor: MQ136

Sensor datasheet, HW Sensor: MQ137

Sensor datasheet, HW Sensor: MQ138

Links

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