HardLabs

Ph

Ranthalion·ph·hardware/ml-ph-board.kicad_pcb

Ph PCB layout, top view — open source STM32 board by Ranthalion

About the Ph PCB

Ph is an open source STM32 PCB design by Ranthalion, published on GitHub under the MIT license. It is a 2-layer board measuring 59.4 × 32.3 mm, with 32 components from 17 distinct parts.

Its main chip is the STM8S003F3P, from the STM32 family. Other key parts include the ISO1540, RFM-0505S and LTC6081xMS8. By type, the board carries 13 resistors, 11 capacitors, 4 ICs, 3 diodes and 1 connector.

From the project

pH Module

Main components on the Ph

ISO1540RFM-0505SSTM8S003F3PLTC6081xMS8

Ph bill of materials (BOM)

32 components, 17 distinct parts.

QtyPartRefs
1
ISO1540
U1
1
RFM-0505S
U2
1
STM8S003F3P
U3
1
LTC6081xMS8
U4
1
Conn_01x04_Male
J1
1
TL432DBZ
D1
2
LED
D2, D3
2
6.8uF
C1, C9
4
0.1uF
C2, C3, C7, C11
3
10nF
C4, C6, C10
1
1uF
C5
1
1nF
C8
3
1.5k
R1, R2, R13
2
10k
R3, R9
5
1k
R4, R5, R10, R11, R12
1
4.7k
R6
2
R_Small_US
R7, R8

Ph design files

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

Ph: common questions

What microcontroller does the Ph use?

The Ph is built around the STM8S003F3P, from the STM32 family.

How big is the Ph PCB?

The Ph measures 59.4 × 32.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Ph?

32 components, from 17 distinct parts. The full bill of materials is listed on this page.

Where can I download the Ph design files?

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

Can I use the Ph design in my own project?

Yes, under the terms of its MIT license, which Ranthalion chose for the repository.

Can I test firmware for the Ph 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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