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4 layers99 × 146 mmCarte principale, the printed circuit board in 3D

Carte principale

Unimakers/CDR-20271

Ce repo est un site de documentation réalisé par l'équipe des première et deusième années pré-ingénieur de l'école Unilasalle-Amiens, membre de l'association de robotique Unimaker, dans le cadre de leur participation à…

Size
99 × 146 mm
Copper layers
4
Thickness
1.6 mm
Parts
156
Nets
140
Pads
567
Tracks, vias
756, 294
Pours
9
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
25 Sep 2026
Updated
7 Nov 2026

Overview

Carte principale is an open-source printed circuit board by Unimakers, from the Unimakers/CDR-2027 repository on GitHub. It is a 4-layer board of 99 × 146 mm with 156 parts on 140 nets, routed with 756 tracks and 294 vias.

It is built around the ESP32-S3-DEVKITC-1-N8, TSR 1-2433E and TSR 1-2450E, with the PCA9685PW, PCF8574T and TMC2209 among its other parts. Its parts include 44 capacitors, 15 resistors, 9 ICs, 7 connectors and 2 diodes. It belongs with the ESP32 boards of this library.

Main components

8

README

README.md

Coupe de France de Robotique 2027 - Unimaker I1/I2

[!IMPORTANT] Ce repo a été créé depuis le template de projet du MakerSpace d'Amiens. Les guides d'utilisation du template sont sur le site de documentation du MakerSpace.

Ce repo est un site de documentation réalisé par l'équipe des première et deusième années pré-ingénieur de l'école Unilasalle-Amiens, membre de l'association de robotique Unimaker, dans le cadre de leur participation à la Coupe de France de Robotique 2027 (CDR 2027). Cette documentation sera mise à jour tout au long de l'année à chaque étape du projet.

Équipe

Étudiants de deuxième année

  • Ajaz Agbetiafa
  • Baptiste Houzelot
  • Brett Legret
  • Emma Vilain
  • Emrick Petit
  • Enzo Deviliers
  • Gauthier Henriques
  • Martin Milon
  • Paul Lapeyronnie
  • Romain Vantalon
  • Samuel Simao

Parts

156
QtyValueFootprintReferences
3910uCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC12, C13, C14, C16, C17, C18, C19, C21, C22, C24, C25, C26, C27, C28, C29, C30 +23
32~Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_VerticalServo1, Servo2, Servo10, Servo11, Servo12, Servo13, Servo14, Servo15, Servo16, Servo17, Servo18, Servo19, Servo20, Servo21, Servo22, Servo23 +16
94.7kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR31, R32, R33, R34, R35, R36, R37, R43, R44
9Conn_01x02Connector_Molex:Molex_KK-254_AE-6410-02A_1x02_P2.54mm_VerticalBAU, Button1, Button2, switch1, switch2, switch3, switch4, switch5, Tirette1
8SolderJumper_3_OpenJumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mmJP1, JP2, JP3, JP4, JP5, JP6, JP16, JP19
6SolderJumper_2_OpenJumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mmJP8, JP9, JP10, JP11, JP12, JP13
5Conn_01x02Connector_AMASS:AMASS_XT30U-M_1x02_P5.0mm_VerticalXT30_3V3, XT30_5VL1, XT30_5VP1, XT30_24V1, XT30_BATT1
5LED_SmallLED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolderDT6, DT8, DT9, DT10, DT11
5LOGOLOGOG***, G***, G***, G***, G***
4100uCapacitor_THT:CP_Radial_D10.0mm_P5.00mmC5, C6, C7, C9
4Conn_01x04Connector_Molex:Molex_KK-254_AE-6410-04A_1x04_P2.54mm_VerticalJ4, J7, J8, J10
4M3MountingHole:MountingHole_3.2mm_M3_Pad_ViaH1, H2, H3, H4
4TMC2209Library:MODULE_TMC2209_SILENTSTEPSTICKU5, U6, U8, U9
310kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR13, R15, R45
21kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR16, R17
2PCA9685PWPackage_SO:TSSOP-28_4.4x9.7mm_P0.65mmU3, U11
1220uFCapacitor_THT:CP_Radial_D8.0mm_P3.80mmC15
1470Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR14
1BAUConnector_Molex:Molex_KK-254_AE-6410-03A_1x03_P2.54mm_VerticalJ6
1D_SmallDiode_SMD:D_SMA_HandsolderingD6
1ESP32-S3-DevKitCPCM_Espressif:ESP32-S3-DevKitCU4
1Fuse_SmallFuse:Fuseholder_Blade_Mini_Keystone_3568F2
1G2RL-1-ERelay_THT:Relay_SPDT_Omron_G2RL-1-EK2
1LIDARConnector_JST:JST_XH_B5B-XH-A_1x05_P2.50mm_VerticalJ5
1PCF8574TPackage_SO:SOIC-16W_7.5x10.3mm_P1.27mmICM1
1SS14Diode_SMD:D_SMAD1
1TEN_50-2411ten50:CONV_TEN_50-2411PS1
1TSR1-2433EConverter_DCDC:Converter_DCDC_TRACO_TSR1-xxxxE_THTU1
1TSR1-2450EConverter_DCDC:Converter_DCDC_TRACO_TSR1-xxxxE_THTU2
1XT60Connector_AMASS:AMASS_XT60-M_1x02_P7.20mm_VerticalBatt
1ecran tftConnector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_VerticalJ1

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Questions

How big is the Carte principale PCB?

It measures 99 × 146 mm and has 4 copper layers, 1.6 mm thick.

What parts does the Carte principale use?

156 parts, built around the ESP32-S3-DEVKITC-1-N8, TSR 1-2433E, TSR 1-2450E and PCA9685PW. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Carte principale KiCad files?

From the Unimakers/CDR-2027 repository on GitHub, at the commit this page was made from: the board is project/ecad/carte-principale/carte principale.kicad_pcb and its schematic docs/assets/kicad/Otto-ESP32-XIAO-REFEREE.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Carte principale design in my own project?

Its repository states no licence, so its author keeps all rights: ask Unimakers before reusing the design.