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OH NO! He didn't! Yes I did! My project is simple: Farting in a chair and sending the signal wirelessly to a panel that shows the intensity of the f...
The project consists of two modules: The emitter located on the chair and the receiver located somewhere else (e.g. on your desk). Here is what you ...
Here are the tools you might need: Tools: 1 x Multimeter 1 x Side cutters 1 x Nose pliers 1 x Lighter - for heat shrink and testing the methane senso...
The MQ-4 can detect natural gas concentrations anywhere from 200 to 10000 ppm (Parts Per Million). It is very sensitive and has a quick response time....
Sparkfun have this great wireless module called the nRF2401A Transceiver. There is also a librarie to make it work with the Arduino. http://www.ardu...
I was able to find a nice plastic case for my project. I cut the PCB to fit inside the casing. Then, I start by placing the 5V and 3.3V voltage regul...
I added this 3.5mm jack to connect the methane sensor. This makes the entire thing easy to remove and debug
I recommend you testing on a breadboard the methane sensor. I had some bad luck with one of them. (lucky I bought two!) For testing, I did not solder...
I want to have a great way to mount the sensor. I decided to have a carrier board and cut to shape a small PCB.
When I started this project, one of my friend had experience with that sensor and told me that they heat up! I though that I should protect them from ...
Here is the complete emitter. I have the 8.4V lithium battery, a power and status LED installed.
I used a bended plexiglass to fix the electronics (arduino and all the components).
I had to enlarge the hole on the Arduino to make the 4-40 screws fit in it. I also had this piece of plexiglass for my science fair back in 2001 layi...
I printed the arrow from the powerpoint I gave in the previous step. I then glued it to a cereal cardboard box. Glue the cardboard to a servo horn. ...
The code is very simple, I was going to add maximum analog peak detection but I soon realised that there was a simpler solution. The system is master...
Remove the seat off the chair. In my case, I simply unscrewed 4 screws.
I made sure the hole I drilled provided maximum linear efficiency for gas to reach the sensor. (aka: perfectly align with my butt hole :) )
When I made the PCB for the methane sensor, I made mounting holes. It is time to drill those holes and mount the sensor to the bottom of the chair. Y...
I used double sided sticky tape to mound to the back of the chair.
There you go! You can now prove that your girlfriend farts! BTW, this works great!
Ok, when I was making this, my friends and I had so much crazy ideas for improvements! #1 - Fart counter, counts how many farts you make. #2 - Make m...
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