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2 layers130 × 75 mmAaron, the printed circuit board in 3D

ENGINYERIA DE SISTEMES: PROJECTE DE CURS Fet per - Aaron Alcalá - Albert Bombí - Marcos García

Size
130 × 75 mm
Copper layers
2
Thickness
1.6 mm
Parts
64
Nets
72
Pads
253
Tracks, vias
368, 94
Pours
7
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
19 May 2026
Updated
19 May 2026

Overview

Aaron is an open-source printed circuit board by alcaaron, from the alcaaron/esi_project repository on GitHub. It is a 2-layer board of 130 × 75 mm with 64 parts on 72 nets, routed with 368 tracks and 94 vias.

It is built around the CH340C, ESP32-WROOM-32UE-N4 and MAX485ED, with the LM2596S-12, LM2596S-5.0 and AMS1117-3.3 among its other parts. Its parts include 16 capacitors, 16 resistors, 7 ICs, 6 connectors and 5 diodes. It belongs with the ESP32 boards of this library.

Main components

9

README

README.md

ENGINYERIA DE SISTEMES: PROJECTE DE CURS Fet per

  • Aaron Alcalá
  • Albert Bombí
  • Marcos García

Tenim diferents arxius que cal especificar:

  • Carpeta esi-proj: aquí trobem tots els codis de la placa principal, la que se'ns demanava inicialment amb totes les llibreries creades per funcionar adequadament
  • Carpeta esi-proj-selba: aquí trobem les mateixes llibreries, pero varia el codi main.c, on en aquest cas està preparat per ser una simulació de les màquines de Selba que es comuniquen amb CAN i RS485 per tal de que respongui per aquests mètodes segons el mètode de comunicació que rebi
  • Carpeta web_files: trobem l'arxiu on es genera el Python Flask i l'html que es veurà en la pàgina web si ets el client
  • Carpeta kicad: disseny de tota la placa PCB
  • Carpeta kicad_fabricacio: carpeta que s'ha usat per demanar la placa al proveïdor de manera física a jlcpcb La pàgina web es giassi.org/esi

A més a més, trobeu una carpeta de memoria on trobareu tots els arxius que hem usat per generar el pdf que veieu en aquesta carpeta (s'haurà de compilar amb LuaLatex perquè funcioni, recomano fer-ho unes quantes vegades per que es carreguin totes les imatges i referències adequadament). També, vam provar d'implementar els metodes de MQTT, per això vam crear la llibreria SelbaMQTT, però no va funcionar. En tot cas, la fiquem aquí perquè es vegi reflectat l'intent. Finalment, trobeu imatges de la màquina d'estats que fem per establir connexió amb el Telit.

esi_project

Parts

64
QtyValueFootprintReferences
9100nFCapacitor_SMD:C_1206_3216MetricC1, C2, C3, C7, C10, C11, C13, C14, C16
510KResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR3, R4, R5, R8, R9
4MountingHoleMountingHole:MountingHole_4.3mm_M4_ISO14580H1, H2, H3, H4
3560Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR1, R11, R12
2120Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR2, R7
2120uF/20VCapacitor_SMD:CP_Elec_6.3x5.9C8, C15
220KResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR6, R10
2220uF/50VCapacitor_SMD:CP_Elec_10x10.5C5, C6
2330Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR13, R14
25K1Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR15, R16
2Conn_01x03Connector_Phoenix_MC:PhoenixContact_MCV_1,5_3-G-3.5_1x03_P3.50mm_VerticalJ2, J3
2TS-1088-AR02016Button_Switch_SMD:SW_SPST_CK_RS282G05A3SW1, SW2
1100uF/50VCapacitor_SMD:CP_Elec_8x10.5C4
112VTestPoint:TestPoint_Pad_D2.5mmTP2
1330uF/16VCapacitor_SMD:CP_Elec_8x10C9
133uHInductor_SMD:L_Bourns_SRR1208_12.7x12.7mmL2
13V3TestPoint:TestPoint_Pad_D2.5mmTP3
1560uF/10VCapacitor_SMD:C_Elec_6.3x7.7C12
15VTestPoint:TestPoint_Pad_D2.5mmTP4
182uHInductor_SMD:L_Vishay_IHLP-6767L1
1AMS1117-3.3Package_TO_SOT_SMD:SOT-223-3_TabPin2U2
1CH340CPackage_SO:SOIC-16_3.9x9.9mm_P1.27mmU7
1Conn_01x02Connector_Phoenix_MSTB:PhoenixContact_MSTBVA_2,5_2-G-5,08_1x02_P5.08mm_VerticalJ1
1Conn_01x04Connector_Molex:Molex_KK-254_AE-6410-04A_1x04_P2.54mm_VerticalJ4
1ESP32-WROOM-32UERF_Module:ESP32-WROOM-32UU6
1GNDTestPoint:TestPoint_Pad_D2.5mmTP5
1LED BLED_SMD:LED_1206_3216MetricD5
1LED GLED_SMD:LED_1206_3216MetricD1
1LED RLED_SMD:LED_1206_3216MetricD4
1LM2596S-12Package_TO_SOT_SMD:TO-263-5_TabPin3U1
1LM2596S-5Package_TO_SOT_SMD:TO-263-5_TabPin3U4
1LOGOaaron:LOGO_UPCG***
1MAX485EPackage_SO:SOIC-8_3.9x4.9mm_P1.27mmU5
1MCP2562-E-SNPackage_SO:SOIC-8_3.9x4.9mm_P1.27mmU3
1SS24Diode_SMD:D_SMAD3
1SS510CDiode_SMD:D_SMCD2
1TELIT_modemConnector_JST:JST_XH_B8B-XH-A_1x08_P2.50mm_VerticalJ7
1USB_C_Receptacle_USB2.0_16PConnector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_HorizontalJ6
1VDCTestPoint:TestPoint_Pad_D2.5mmTP1

Questions

How big is the Aaron PCB?

It measures 130 × 75 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Aaron use?

64 parts, built around the CH340C, ESP32-WROOM-32UE-N4, MAX485ED and LM2596S-12. 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 Aaron KiCad files?

From the alcaaron/esi_project repository on GitHub, at the commit this page was made from: the board is kicad/aaron.kicad_pcb and its schematic kicad/aaron.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Aaron design in my own project?

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

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