HardLabs

Bluepill sensor

kellerkindt·bluepill_sensor·res/kicad/bluepill_ethernet.kicad_pcb

Bluepill sensor PCB layout, top view — open source board by kellerkindt

About the Bluepill sensor PCB

Bluepill sensor is an open source PCB design by kellerkindt, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 50.4 × 50.4 mm, with 39 components from 19 distinct parts.

Other key parts include the BluePill_STM32F103C, 93C46, WIZ850io, PCF8574A and LM75B. By type, the board carries 10 diodes, 9 resistors, 7 capacitors, 6 ICs, 6 connectors and 1 switch.

It belongs with the sensors designs in this gallery.

From the project

Bluepill stm31f103 ethernet sensor extension board with SW written in Rust

This project is about an extension board for the Bluepill (based on stm32f103) I develop in my spare time. I use this board to monitor the temperature at various places in my house, the CO2 concentration at my desktop as well as my energy consumption. All values are polled through the network (UDP) by munin. You can even watch some live readings here. The board is designed to be stacked on top of another expansion PCB and provides the following functionality itself:

Bluepill sensor, from the project README
From the project README

Main components on the Bluepill sensor

BluePill_STM32F103C93C46WIZ850ioPCF8574ALM75B

Bluepill sensor bill of materials (BOM)

39 components, 19 distinct parts.

QtyPartRefs
1
BluePill_STM32F103C
U1
1
93C46
U2
1
WIZ850io
U3
1
93C46
U4
1
PCF8574A
U5
1
LM75B
U6
2
HEADER-1x20
J1, J4
1
Conn_01x03
J2
1
Conn_02x05_Odd_Even
J3
1
Conn_02x02_Odd_Even
J5
1
Conn_02x04_Odd_Even
J7
1
SW_Push
SW1
2
LED
D1, D2
8
LED
D3, D4, D5, D6, D7, D8, D9, D10
3
C
C1, C5, C7
3
CP
C2, C4, C6
1
C
C3
8
R
R1, R2, R3, R4, R5, R6, R7, R8
1
4,7k
RN2

Bluepill sensor design files

The KiCad project lives in the kellerkindt/bluepill_sensor repository on GitHub; these links point at the commit this page was built from.

Bluepill sensor: common questions

How big is the Bluepill sensor PCB?

The Bluepill sensor measures 50.4 × 50.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bluepill sensor?

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

Where can I download the Bluepill sensor design files?

From the kellerkindt/bluepill_sensor repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

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

Yes, under the terms of its Apache-2.0 license, which kellerkindt chose for the repository.

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