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Analog wake trigger

antonio-mariano·analog-wake-trigger·hardware/analog-wake-trigger.kicad_sch

Analog wake trigger

About the Analog wake trigger PCB

Analog wake trigger is an open source PCB design by antonio-mariano, published on GitHub under the MIT license. It is a board, with 44 components from 16 distinct parts.

Other key parts include the LM393 and NE555P. By type, the board carries 21 resistors, 6 transistors, 6 capacitors, 4 diodes and 3 ICs.

It belongs with the sensors designs in this gallery.

From the project

A compact analog module that monitors the pressure sensors used in the sleep-monitor repository and generates a clean digital wake signal to the microcontroller whenever movement is detected.

A compact analog module that monitors the velostat pressure sensors used in the github.com/antonio-mariano/sleep-monitor project and generates a clean digital wake signal whenever movement is detected.

Although designed specifically for integration with sleep-monitor, the module can also be used in similar systems or as a standalone movement detector.

This README focuses on circuit assembly, usage, and integration. A detailed explanation of the circuit architecture, design rationale, and the analog techniques behind it is available at: 👉 docs/design_notes.md

Main components on the Analog wake trigger

LM393NE555P

Analog wake trigger bill of materials (BOM)

44 components, 16 distinct parts.

QtyPartRefs
2
LM393
U1, U2
1
NE555P
U3
1
BC327
Q1
5
BC337
Q2, Q3, Q5, Q6, Q7
4
~
SENSOR_A1, SENSOR_A2, SENSOR_B1, SENSOR_B2
4
1N4148
D1, D2, D3, D4
2
1u
C1, C3
2
10u
C2, C4
1
0.01uF
C5
1
1uF
C6
4
18k
R1, R2, R9, R10
7
10k
R3, R5, R6, R7, R8, R15, R20
1
10k Potentiometer
R4
2
1.2M
R11, R13
2
1.5k
R12, R17
5
450k
R14, R16, R18, R19, R21

Analog wake trigger design files

The KiCad project lives in the antonio-mariano/analog-wake-trigger repository on GitHub; these links point at the commit this page was built from.

Analog wake trigger: common questions

How many components are on the Analog wake trigger?

44 components, from 16 distinct parts. The full bill of materials is listed on this page.

Where can I download the Analog wake trigger design files?

From the antonio-mariano/analog-wake-trigger repository on GitHub, which has the schematic; the links under Design files point to each one.

Can I use the Analog wake trigger design in my own project?

Yes, under the terms of its MIT license, which antonio-mariano chose for the repository.

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