HardLabs

Mcu

djmdjm·TU-2506V-ELS·electronics/mcu/mcu.kicad_pcb

Mcu PCB layout, top view — open source STM32 board by djmdjm

About the Mcu PCB

Mcu is an open source STM32 PCB design by djmdjm, published on GitHub under the ISC license. It is a 2-layer board measuring 91.4 × 52.1 mm, with 49 components from 46 distinct parts.

Its main chip is the STM32F411_Blackpill_no_debug, from the STM32 family. Other key parts include the CD4504B. By type, the board carries 46 connectors and 3 ICs.

It belongs with the displays & leds designs in this gallery.

From the project

Electronic Leadscrew for Optimum TU-2506V-ELS lathe

This directory contains the schematics and PCB CAD files for the controller boards. To fit in the available space in the lathe casting they are designed as a stack.

The mcu/ subdirectory contains the designs for the MCU carrier board, which basically exists to route signals from the STM32F411 Black Pill board to the adjacent ones via headers. The character VFD display also connects to this board via extended headers.

Main components on the Mcu

CD4504BSTM32F411_Blackpill_no_debug

Mcu bill of materials (BOM)

49 components, 46 distinct parts.

QtyPartRefs
2
CD4504B
U5, U6
1
STM32F411_Blackpill_no_debug
U7
2
GND
J1, J10
1
3.3V
J2
1
5V
J3
1
LCD
J4
1
ENC2
J5
1
ENC3
J6
1
BUTTONS
J7
1
B12
J20
1
B13
J21
1
B14
J22
1
B15
J23
1
A8
J24
1
A9
J25
1
A10
J26
1
A11
J27
1
A12
J28
1
A15
J29
1
B3
J30
Show 26 more
QtyPartRefs
1
B4
J31
1
B5
J32
1
B6
J33
1
B7
J34
1
B8
J35
1
B9
J36
1
X5V
J37
1
B10
J38
1
B2
J39
1
B1
J40
1
B0
J41
1
A7
J42
1
A6
J43
1
A5
J44
1
A4
J45
1
A3
J46
1
A2
J47
1
A1
J48
1
A0
J49
1
C15
J50
1
C14
J51
1
C13
J52
2
3V3
J53, J56
1
NRST
J54
1
VBAT
J55
1
middle_from_bottom
J58

Mcu design files

The KiCad project lives in the djmdjm/TU-2506V-ELS repository on GitHub; these links point at the commit this page was built from.

Mcu: common questions

What microcontroller does the Mcu use?

The Mcu is built around the STM32F411_Blackpill_no_debug, from the STM32 family.

How big is the Mcu PCB?

The Mcu measures 91.4 × 52.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mcu?

49 components, from 46 distinct parts. The full bill of materials is listed on this page.

Where can I download the Mcu design files?

From the djmdjm/TU-2506V-ELS repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Mcu design in my own project?

Yes, under the terms of its ISC license, which djmdjm chose for the repository.

Can I test firmware for the Mcu 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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