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Projet ETRS 528

B1jam1-74·Projet_Ruche_groupe_1·PCB/PCB2/ETRS_528/projet_ETRS_528/projet_ETRS_528.kicad_pcb

Projet ETRS 528 PCB layout, top view — open source STM32 board by B1jam1-74

About the Projet ETRS 528 PCB

Projet ETRS 528 is an open source STM32 PCB design by B1jam1-74, published on GitHub under the MIT license. It is a 2-layer board measuring 88.1 × 70 mm, with 52 components from 30 distinct parts.

Its main chip is the STM32G031KxT, from the STM32 family. Other key parts include the FT231XS, HX711 and Lora-E5. By type, the board carries 20 resistors, 14 capacitors, 4 ICs, 4 connectors, 3 diodes and 1 crystal.

From the project

5 cartes ont été conçues, fabriquées (JLCPCB) et testées au cours du projet. Cette page liste chaque itération avec son verdict — le détail des erreurs et des correctifs est dans § IV du rapport.

5 cartes ont été conçues, fabriquées (JLCPCB) et testées au cours du projet. Cette page liste chaque itération avec son verdict — le détail des erreurs et des correctifs est dans § IV du rapport.

- LoRa E5benj/ — symbole + footprint pour le socket PLCC-28 du module Seeed LoRa-E5 - Docs/` — notes de conception, brouillons d'empreintes

Le module LoRa est monté sur un socket PLCC-28 plutôt que soudé : remplacement / upgrade sans dessoudage, et fini les ponts entre pins très rapprochées (cf. rapport).

Main components on the Projet ETRS 528

FT231XSHX711Lora-E5STM32G031KxT

Projet ETRS 528 bill of materials (BOM)

52 components, 30 distinct parts.

QtyPartRefs
1
FT231XS
U1
1
HX711
U3
1
Lora-E5
U4
1
STM32G031KxT
U5
1
AMPHENOL-10103593
X1
3
Conn_01x04
J1, J2, J4
1
Conn_01x05
J5
1
Antenna_Loop
AE2
1
JS202011CQN
BOOT0
1
SW_SPST
RESET0
1
SW_MEC_5G
SW1
1
~
TS2938CS1
1
BZX384-C3V3
D2
2
LED
D4, D5
1
47nH
L1
1
4.7uF
C1
4
100nF
C2, C11, C12, C14
2
4.7µF
C3, C13
2
47pF
C4, C5
1
10nF
C6
Show 10 more
QtyPartRefs
2
10uF
C7, C9
2
0.1uF
C8, C10
3
4.7k
R1, R7, R8
1
470
R2
3
22
R3, R4, R5
3
10k
R6, R9, R17
2
100
R12, R13
5
27R
R14, R15, R18, R19, R150
1
100k
R16
2
330R
R20, R21

Projet ETRS 528 design files

The KiCad project lives in the B1jam1-74/Projet_Ruche_groupe_1 repository on GitHub; these links point at the commit this page was built from.

Projet ETRS 528: common questions

What microcontroller does the Projet ETRS 528 use?

The Projet ETRS 528 is built around the STM32G031KxT, from the STM32 family.

How big is the Projet ETRS 528 PCB?

The Projet ETRS 528 measures 88.1 × 70 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Projet ETRS 528?

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

Where can I download the Projet ETRS 528 design files?

From the B1jam1-74/Projet_Ruche_groupe_1 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Projet ETRS 528 design in my own project?

Yes, under the terms of its MIT license, which B1jam1-74 chose for the repository.

Can I test firmware for the Projet ETRS 528 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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