The monitor I built to calibrate the Shinyei vs the PM2.5 AES-1, I called Pickle. Why the name Pickle ? Because I love crunchy pickles and I thought it would be a cool name. Can also stand for:
Particle Counter in the Kloud 🙂
I wanted to build a monitor that hooked up directly to the network with an ethernet cable so that there are no other gadgets like a phone or computer needed to send the data to the cloud. The monitor would be in places in India and elsewhere where power could go on and off and also where a person may not be present at all times. After some trial and error in playing with the Raspberry Pi, Arduino Yun, Arduino Uno with the Ethernet shield and the Arduino Ethernet board, I finally settled for the last choice aka the Arduino Ethernet. While it costs $45 (vs $35 for the Pi), it was very stable across power outages and loss of network connectivity after I added code that tested the Ethernet connection every 5 minutes.
Here is the completed Pickle using the PPD60PV-T2 – only missing item is the led.
Pickle is made from:
6 pieces of Acrylic from TAP Plastics
Sunon or Adda DC Fan. Currently I am using Sunon GM0502PFV2-8 25mm 5V brushless fan.
Arduino Ethernet board
Screws, standoffs, Rain Bird sprinkler elbow, Sugru and black resin epoxy from TAP Plastics.
The tricky part for me was adding a fan to the monitor. I wanted a way for air to come in but not light! After much trial and error including using a huge USB fan in a cardboard box, I figured out a way to directly attach the fan to the T2 and that is what I have been using since.
The key part is the Rain Bird sprinkler elbow I purchased from Home Depot:
The Sunon 25mmx25mm fan site on top of this elbow at the spout, and the horizontal section (after cutting) attaches to the T2 at the bottom. The T2 has an opening at the bottom for the heater resistor. This is where I attach the elbow for the air to get sucked out. Pictures are better than words, so:
Now how this attaches to the T2.
And the fan goes on top:
The Rain Bird attaches to the T2 and the Fan attaches to the Rain Bird with the epoxy and with black sugru.
In the next post (Part 2) I’ll walk thru in some more detail.