HardLabs

Timer-RTC-STM32-Tm1638

nhantt92·Timer-RTC-STM32-Tm1638·control-board-hw/control-board-hw.kicad_pcb

Timer-RTC-STM32-Tm1638 PCB layout, top view — open source STM32 board by nhantt92

About the Timer-RTC-STM32-Tm1638 PCB

Timer-RTC-STM32-Tm1638 is an open source STM32 PCB design by nhantt92, published on GitHub. It is a 2-layer board measuring 93 × 61 mm, with 125 components from 50 distinct parts.

Its main chip is the STM32F103C8, from the STM32 family. Other key parts include the MC34063, ASM1117, ULN2003 and MAX485. By type, the board carries 51 resistors, 27 capacitors, 13 diodes, 9 connectors, 7 transistors and 6 fuses.

From the project

Timer-RTC-STM32-Tm1638

Timer-RTC-STM32-Tm1638, from the project README
From the project README

Main components on the Timer-RTC-STM32-Tm1638

MC34063ASM1117ULN2003STM32F103C8MAX485

Timer-RTC-STM32-Tm1638 bill of materials (BOM)

125 components, 50 distinct parts.

QtyPartRefs
1
MC34063
U1
1
ASM1117
U2
1
ULN2003
U3
1
STM32F103C8
U4
1
MAX485
U5
5
AMP4953
Q2, Q4, Q5, Q6, Q7
1
Q_PMOS_GDS
Q3
1
C1815
Q8
1
Crystal
Y1
1
Crystal_GND3
Y2
1
CONN_02X10
J1
1
CONN_01X04
J3
1
CONN_01X08
J5
1
CONN_01X06
J6
1
USB_OTG
J7
2
CONN_01X04
J8, J9
1
CONN_01X02
J10
1
CONN_01X04
J11
1
Battery_Cell
BT1
6
10A/24V
F1, F2, F3, F4, F5, F6
Show 30 more
QtyPartRefs
1
D_ALT
D1
1
LED
D2
2
D_Schottky
D3, D5
5
D_Schottky
D4, D6, D7, D11, D12
3
3V3
D8, D9, D10
1
D_ALT
D13
1
L_Small
L1
1
L_Small
L2
1
L_Small
L3
1
L
L4
4
22pF
C1, C6, C10, C11
14
100nF
C2, C3, C4, C7, C14, C15, C16, C17 +6
4
10uF
C5, C13, C19, C27
3
CP1
C12, C23, C29
1
CP1
C20
1
33p
C22
12
0R
R1, R2, R3, R4, R5, R6, R34, R35 +4
1
1.5k
R7
2
22R
R8, R9
14
10k
R10, R12, R18, R19, R22, R27, R28, R29 +6
5
4.7k
R11, R13, R40, R52, R53
1
0.15
R14
1
1k
R15
1
3K/1%
R16
1
1k/1%
R17
6
10R
R20, R21, R23, R31, R33, R47
3
27k
R24, R25, R26
2
20k
R38, R49
1
120
R43
1
2.2k
R48

Timer-RTC-STM32-Tm1638 design files

The KiCad project lives in the nhantt92/Timer-RTC-STM32-Tm1638 repository on GitHub; these links point at the commit this page was built from.

Timer-RTC-STM32-Tm1638: common questions

What microcontroller does the Timer-RTC-STM32-Tm1638 use?

The Timer-RTC-STM32-Tm1638 is built around the STM32F103C8, from the STM32 family.

How big is the Timer-RTC-STM32-Tm1638 PCB?

The Timer-RTC-STM32-Tm1638 measures 93 × 61 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Timer-RTC-STM32-Tm1638?

125 components, from 50 distinct parts. The full bill of materials is listed on this page.

Where can I download the Timer-RTC-STM32-Tm1638 design files?

From the nhantt92/Timer-RTC-STM32-Tm1638 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Timer-RTC-STM32-Tm1638 design in my own project?

The repository has no license, so all rights stay with nhantt92. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Timer-RTC-STM32-Tm1638 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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