Air Particulate Matter
- Custom 3D printed housing (https://github.com/fo-am/sonic-kayaks/blob/master/hardware/3dp/pm-box.stl for laser sintering with narrower nostrils or https://github.com/fo-am/sonic-kayaks/blob/master/hardware/3dp/pm-box-home-print.stl for normal extrusion printing and wider nostrils) [£91.54 via Shapeways printed in natural white versatile plastic, or max £5 if you print it yourself]
- PMS7003 sensor (https://kamami.pl/en/gas-sensors/564008-plantower-pms7003-laser-dust-sensor.html?search_query=plantower&results=2) [£24.26]
- Adapter for air sensor (https://kamami.pl/en/other-connectors/564553-adapter-from-127mm-pitch-to-254mm-for-pms7003.html) [£2.02]
- Offcut of the fuzzy bit of velcro (~4cm long, you'll have some left over from making the straps)
- 2 1X4 mini-pv connector shells
- 8 mini-pv crimp connectors
- Drill a small hole in the printed housing, to fit your cable through tightly, on the short end of the box furthest from the pipes.
- Cut notches in the velcro piece in line with the in and out flows from the sensor, and cut about 0.5cm off one long edge. Put this in place in the printed housing, so the notches are in line with the holes/pipes.
- Slot the sensor in, it should be held snuggly by the velcro
- Fit your cable through the hole
- Crimp and attach connector inside box
- Add the adapter to the air sensor, and plug wires in (see diagram above - note that TX on the Arduino side plugs into the RX on the sensor and vice versa, this is not a mistake).
- Pass cable through water proof gland, and add connector to the other side (reversing TX and RX as explained above).