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Mainboard

Kalilinuxloverr·Desk-Mate·hardware/kicad/mainboard/mainboard.kicad_pcb

Mainboard PCB layout, top view — open source ESP32 board by Kalilinuxloverr

About the Mainboard PCB

Mainboard is an open source ESP32 PCB design by Kalilinuxloverr, published on GitHub under the MIT license. It is a 2-layer board measuring 100 × 100 mm, with 35 components from 29 distinct parts.

Its main chip is the ESP32-S3-DevKitC-1-N16R8, from the ESP32 family. Other key parts include the LD1117V33, DRV8833 Pololu #2130, DRV8833 Pololu #2130 (Fader 3/4), MT3608 Boost ~9V (optional, 4 Draehte) and ESP32-C3 SuperMini Reserve. By type, the board carries 9 connectors, 9 capacitors, 8 resistors, 7 ICs, 1 fuse and 1 diode.

It belongs with the robotics & motion and displays & leds designs in this gallery.

From the project

Wall-E-artiger Schreibtisch-Begleiter: Ampel fuer Claude Code & Downloads, Motorfader, Augen-Displays. ESP32-S3, Swift, KiCad, 3D-Druck.

Regeln (JLCPCB 2-Lagen): Leiterbahn ≥ 0,2 mm, Abstand ≥ 0,2 mm, Via 0,8/0,4 mm, Rand 0,3 mm. Netzklassen: Power 1,5 mm (Mainboard) / 1,0 mm, Motor 0,8 mm, 3V3 0,8 mm, Default 0,3 mm. Massefläche beidseitig, Sperrzone unter der DevKit-Antenne.

Die Erstversion aller Dateien wurde aus gen/boards.py erzeugt — eine Tabelle „Bauteil → Pin → Netz → Position“. So sind Schaltplan, Layout und netlist.json per Konstruktion identisch, und tools/test-kicad.sh prüft das gegen KiCads eigene Netzliste.

Main components on the Mainboard

ESP32-S3-DevKitC-1-N16R8LD1117V33DRV8833 Pololu #2130DRV8833 Pololu #2130 (Fader 3/4)MT3608 Boost ~9V (optional, 4 Draehte)ESP32-C3 SuperMini ReserveA4988/TMC2209 Reserve

Mainboard bill of materials (BOM)

35 components, 29 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3-DevKitC-1-N16R8
U1
1
LD1117V33
U2
1
DRV8833 Pololu #2130
U3
1
DRV8833 Pololu #2130 (Fader 3/4)
U4
1
MT3608 Boost ~9V (optional, 4 Draehte)
U5
1
ESP32-C3 SuperMini Reserve
U6
1
A4988/TMC2209 Reserve
U7
1
USB-C 5V/3A (GCT USB4085)
J1
1
IDC 2x15 -> Frontpanel
J2
1
Servo Pan (GND/5V/Sig)
J3
1
Servo Tilt (GND/5V/Sig)
J4
1
ARGB 5V/GND/Data
J5
1
BME680 (VCC GND SCL SDA SDO CS)
J6
1
Augen-Kabel
J7
1
RST/BOOT extern
J8
1
Stepper 1A 1B 2A 2B
J10
1
3A RXEF300
F1
1
SB540
D1
1
1000u/10V
C1
3
100u
C2, C3, C8
Show 9 more
QtyPartRefs
1
470u
C4
1
1000u
C5
2
100n
C6, C7
1
10u
C11
2
5k1
R1, R2
2
10k
R3, R8
1
15k
R4
1
330
R5
2
4k7
R6, R7

Mainboard design files

The KiCad project lives in the Kalilinuxloverr/Desk-Mate repository on GitHub; these links point at the commit this page was built from.

Mainboard: common questions

What microcontroller does the Mainboard use?

The Mainboard is built around the ESP32-S3-DevKitC-1-N16R8, from the ESP32 family.

How big is the Mainboard PCB?

The Mainboard measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mainboard?

35 components, from 29 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Mainboard design files?

From the Kalilinuxloverr/Desk-Mate repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Mainboard design in my own project?

Yes, under the terms of its MIT license, which Kalilinuxloverr chose for the repository.

Can I test firmware for the Mainboard without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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