HardLabs

Safety sensor

fr0st61te·safety-sensor

Safety sensor PCB layout, top view — open source STM32 board by fr0st61te

About the Safety sensor PCB

Safety sensor is an open source STM32 PCB design by fr0st61te, published on GitHub. It is a 2-layer board measuring 99.1 × 45.7 mm, with 30 components from 19 distinct parts.

Its main chip is the STM8S003F3P6, from the STM32 family. Other key parts include the LD1117V33 and VCNL3020-GS08. By type, the board carries 9 capacitors, 8 resistors, 6 connectors, 4 diodes and 3 ICs.

It belongs with the sensors designs in this gallery.

From the project

safety/tamper sensor

This is a primitive safety/tamper sensor based on STM8 and VCNL3020 proximity sensor with simple backup power mechanism. STM8 application saves state of interrupt and store it in flash memory, blinks when interrupt occurs.

Main components on the Safety sensor

STM8S003F3P6LD1117V33VCNL3020-GS08

Safety sensor bill of materials (BOM)

30 components, 19 distinct parts.

QtyPartRefs
1
STM8S003F3P6
IC1
1
LD1117V33
U1
1
VCNL3020-GS08
U2
2
Conn_01x02
J1, J5
1
SDA
J2
1
SCL
J3
1
INT
J4
1
SWIM
J6
2
1N5817
D1, D2
2
LED
D3, D4
1
22uF
C1
5
100nF
C2, C3, C5, C7, C8
1
1uF
C4
2
10uF
C6, C9
2
10K
R1, R8
2
4.7K
R2, R3
1
10
R4
1
0
R5
2
1k
R6, R7

Safety sensor design files

The KiCad project lives in the fr0st61te/safety-sensor repository on GitHub; these links point at the commit this page was built from.

Safety sensor: common questions

What microcontroller does the Safety sensor use?

The Safety sensor is built around the STM8S003F3P6, from the STM32 family.

How big is the Safety sensor PCB?

The Safety sensor measures 99.1 × 45.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Safety sensor?

30 components, from 19 distinct parts. The full bill of materials is listed on this page.

Where can I download the Safety sensor design files?

From the fr0st61te/safety-sensor repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Safety sensor design in my own project?

The repository has no license, so all rights stay with fr0st61te. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Safety sensor without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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