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Controladora Semaforos-2

dieleoz·Controladora_Semaforos-2·01_Firmware/Controladora_Semaforos/Controladora_Semaforos/Controladora_Semaforos.kicad_pcb

Controladora Semaforos-2 PCB layout, top view — open source STM32 board by dieleoz

About the Controladora Semaforos-2 PCB

Controladora Semaforos-2 is an open source STM32 PCB design by dieleoz, published on GitHub. It is a 2-layer board measuring 156.5 × 120 mm, with 177 components from 30 distinct parts.

Its main chip is the STM32F103C8Tx, from the STM32 family. Other key parts include the MAX3485, LM7805_TO220, LM1117DT-3.3 and TLP127. By type, the board carries 72 resistors, 30 diodes, 30 capacitors, 17 connectors, 15 ICs and 10 transistors.

From the project

La instalación certificada es e303485 (V8.4, 31/07/2026). Lo de debajo llegó a una mesa el 3-4/09 y la noche del 04/09 —banco con dos tarjetas; la última cinta, 05/09 22:19, sobre 42a52cd— y 🔴 el 10/09 llegó por primera vez a una calle: un Maestro (SERIE:179DB0) corrió en El Sisg

La instalación certificada es e303485 (V8.4, 31/07/2026). Lo de debajo llegó a una mesa el 3-4/09 y la noche del 04/09 —banco con dos tarjetas; la última cinta, 05/09 22:19, sobre 42a52cd— y 🔴 el 10/09 llegó por primera vez a una calle: un Maestro (SERIE:179DB0) corrió en El Sisga con firmware V9 SINBANCO —el paquete del 08/09 (7ff7d12); después se probó el del 10/09 (b354fe9)—. Su cinta y su diario están en evidencia/ (308 tramas, 308 checksums que casan). Lo que se reportó allí, lo que dice la cinta y la rama que salió de ahí, validada por el diff, están en roadmap.md §3.16 (N-162). 🔴 Con…

Main components on the Controladora Semaforos-2

STM32F103C8TxMAX3485LM7805_TO220LM1117DT-3.3TLP127

Controladora Semaforos-2 bill of materials (BOM)

177 components, 30 distinct parts.

QtyPartRefs
1
STM32F103C8Tx
U1
2
MAX3485
U2, U3
1
LM7805_TO220
U4
1
LM1117DT-3.3
U5
10
TLP127
U6, U7, U8, U9, U10, U11, U12, U13 +2
10
IRLZ44N
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +2
1
8MHz
Y1
1
32.768kHz
Y2
11
Conn_01x02
J1, J3, J4, J5, J6, J7, J8, J9 +3
1
Conn_01x04_Pin
J2
3
Conn_01x02
J10, J12, J14
1
Conn_01x12_Pin
J16
1
Conn_01x13_Pin
J17
1
SW_Omron_B3FS
SW1
17
LED
D1, D2, D3, D4, D5, D9, D10, D12 +9
3
SS210
D6, D7, D8
10
1N4148
D11, D14, D16, D18, D20, D22, D24, D26 +2
6
100 nF
C1, C2, C3, C4, C10, C11
1
1 uF
C5
4
20 pF
C6, C7, C8, C9
Show 10 more
QtyPartRefs
4
10uF
C12, C13, C14, C15
15
100nF
C16, C17, C18, C19, C20, C21, C22, C23 +7
27
10K
R1, R2, R20, R22, R24, R26, R29, R31 +19
1
1M
R4
1
0
R5
2
120
R6, R10
4
4.7K
R7, R8, R9, R11
16
1K
R12, R13, R14, R15, R16, R17, R23, R28 +8
1
330
R18
20
220
R19, R21, R25, R27, R30, R32, R35, R37 +12

Controladora Semaforos-2 design files

The KiCad project lives in the dieleoz/Controladora_Semaforos-2 repository on GitHub; these links point at the commit this page was built from.

Controladora Semaforos-2: common questions

What microcontroller does the Controladora Semaforos-2 use?

The Controladora Semaforos-2 is built around the STM32F103C8Tx, from the STM32 family.

How big is the Controladora Semaforos-2 PCB?

The Controladora Semaforos-2 measures 156.5 × 120 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Controladora Semaforos-2?

177 components, from 30 distinct parts. The full bill of materials is listed on this page.

Where can I download the Controladora Semaforos-2 design files?

From the dieleoz/Controladora_Semaforos-2 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Controladora Semaforos-2 design in my own project?

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

Can I test firmware for the Controladora Semaforos-2 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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