2 layers171.5 × 110.5 mm Schems, the printed circuit board in 3D

Schems

This repo describes the construction of non-conventional AT switches: - Proximity-based, through IR LEDs and IR Sensors - Puff-based, through piezoelectric disc sensors

Open in PCBKit

Size: 171.5 × 110.5 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 96
Nets: 7
Pads: 496
Tracks, vias: 1,072, 0
Pours: 16
Routed: Yes
KiCad: KiCad 3
Created: 27 Feb 2018
Updated: 30 Jul 2018

Overview

Schems is an open-source printed circuit board by ErickCampos, from the ErickCampos/At-Switch repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 171.5 × 110.5 mm with 96 parts on 7 nets, routed with 1,072 tracks and 0 vias.

It is built around the HT12D. Its parts include 32 resistors, 16 diodes and 16 switches.

Main components

HT12D
DIP-18-20℃~+75℃ 0.1uA 1.6mA 1.6mA 2.4V~12V Decoder DIP-18 Signal Switches, Multiplexers, Decoders ROHSHoltek SemiconSignal Switches / Encoders & Decoders / Multiplexers

README

README.md

AT Switch

This repo describes the construction of non-conventional AT switches:

Proximity-based, through IR LEDs and IR Sensors
Puff-based, through piezoelectric disc sensors

The devices can act as independent triggers, and a minimal desktop driver, called JATSD (Jack AT Switch Driver) allow them to be used as a 'mouse click' interface, which communicates with the computer directly via audio P2 3.5mm jack input.

Dependences (Debian)

text

sudo apt-get install kicad libx11-dev libasound2-dev libportaudio-dev portaudio19-dev

Copyright

2017-2018
FalaBrasil Group (github|webpage)
Laboratory of Visualization, Interaction and Intelligent Systems (LabVIS)
Federal University of Pará (UFPA)

Authors

Erick Modesto Campos (github|email)
Cassio Trindade Batista (github|email)

Parts

Qty	Value	Footprint	References
16	220	R4	R2, R2, R2, R2, R2, R2, R2, R2, R2, R2, R2, R2, R2, R2, R2, R2
16	50k	R4	R1, R1, R1, R1, R1, R1, R1, R1, R1, R1, R1, R1, R1, R1, R1, R1
16	CONN_3	PIN_ARRAY_3X1	K1, K1, K1, K1, K1, K1, K1, K1, K1, K1, K1, K1, K1, K1, K1, K1
16	HT12D	DIP-18__300	Decoder1, Decoder1, Decoder1, Decoder1, Decoder1, Decoder1, Decoder1, Decoder1, Decoder1, Decoder1, Decoder1, Decoder1, Decoder1, Decoder1, Decoder1, Decoder1
16	LED Status	LED-5MM	D1, D1, D1, D1, D1, D1, D1, D1, D1, D1, D1, D1, D1, D1, D1, D1
16	RX	PIN_ARRAY_4x1	RF1, RF1, RF1, RF1, RF1, RF1, RF1, RF1, RF1, RF1, RF1, RF1, RF1, RF1, RF1, RF1

Questions

How big is the Schems PCB?

It measures 171.5 × 110.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Schems use?

96 parts, built around the HT12D. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Schems KiCad files?

From the ErickCampos/At-Switch repository on GitHub, at the commit this page was made from: the board is at-prox/schems/rx/Rx.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Schems design in my own project?

Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/erickcampos-at-switch-rx" title="Schems in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/erickcampos-at-switch-rx.jpg" alt="Schems" width="1200" height="900">

A picture that opens the board, for a README

[![Schems](https://pcbkit.io/embed/boards/erickcampos-at-switch-rx.jpg?size=s)](https://pcbkit.io/boards/erickcampos-at-switch-rx)

Source

Repository: ErickCampos/At-Switch
Board file: at-prox/schems/rx/Rx.kicad_pcb
Commit: 857836c
Licence: GPL-3.0

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