DIY Low-cost AT Switches

The electronic components used for the development of the two AT switches were added in the components section of this project and each item is properly indicated in which switch to use. Also were added in the files section the .zip files containing the complete design of each AT switch designed in the KiCad software. All these files can also be found in Erick's Github.

Certainly the section describing the development of the proximity switch is complete. The circuit of the transmitter module is similar to the puff swicth circuit, but in the proximity switch two infrared LEDs are used to detect an obstacle (it can be the hand, arm and even the user's foot).

Swtiches' images repository moved from Imgur to Postimg.cc

-- CB.

I forgot to mention in the last log about the development of puff switch support. The objective was to show the initial ideas of the development of this support that ended up influencing the tool developed as a final result. As it can be seen the development of this support was very artenal ( to fix the wires even hot glue was used hahaha). I had so much fun doing this support hahaha. I hope I have been able to show the reason for the construction of this tool.

All the text written here was taken from my undergraduate thesis. I tried to show the prototype circuit and how each component works. The next step is to write about the development of proximity switch and also the method used for the development of the printed circuit boards of these swithces.

It took me a little while to start writing this project because I was busy with college -- I'm about to graduate in computer engineering :). The detail section is almost finished. The overview image took me a long time, since I do not have many skills to do these schemes hahaha sorry. /p>