HardLabs

Kicad

eddyem·STM8_samples·stepper_independent/schematic/kicad.kicad_pcb

Kicad PCB layout, top view — open source STM32 board by eddyem

About the Kicad PCB

Kicad is an open source STM32 PCB design by eddyem, published on GitHub. It is a 2-layer board measuring 56.6 × 23.6 mm, with 15 components from 11 distinct parts.

Its main chip is the STM8S105K4T6C, from the STM32 family. By type, the board carries 5 connectors, 3 capacitors, 3 resistors, 2 diodes, 1 IC and 1 switch.

From the project

Some code samples and ready projects based on STM8 (deprecated)

This is a simple example of INDEPENDENT management of 3 stepper motors. All motors have independent lines DIR and CLK and common line EN. Communication with MCU realized through simple USBTTL converter. Just connect lines Rx/Tx of converter to Tx/Rx of evaluation boart, connect together lines GND and +3.3V. Communication speed: 57600, proto: 8N1 Comminication with MCU don't need special soft: you can even run screen session or some terminal client like com. Another wariant is a simple client - client-term. MCU itself can print to terminal a short help about its protocol, just sent letter 'h'…

Main components on the Kicad

STM8S105K4T6C

Kicad bill of materials (BOM)

15 components, 11 distinct parts.

QtyPartRefs
1
STM8S105K4T6C
U1
1
DB25
J1
2
CONN_14
P1, P3
1
CONN_4
P2
1
CONN_5
P4
1
SW_PUSH
SW1
2
LED
D1, D2
1
1u
C1
2
104
C2, C3
2
1k
R1, R2
1
10k
R3

Kicad design files

The KiCad project lives in the eddyem/STM8_samples repository on GitHub; these links point at the commit this page was built from.

Kicad: common questions

What microcontroller does the Kicad use?

The Kicad is built around the STM8S105K4T6C, from the STM32 family.

How big is the Kicad PCB?

The Kicad measures 56.6 × 23.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Kicad?

15 components, from 11 distinct parts. The full bill of materials is listed on this page.

Where can I download the Kicad design files?

From the eddyem/STM8_samples repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Kicad design in my own project?

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

Can I test firmware for the Kicad 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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