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Ergon80

PetrouilFan·ergon80

Ergon80 PCB layout, top view — open source ESP32 board by PetrouilFan
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About the Ergon80 PCB

Ergon80 is an open source ESP32 PCB design by PetrouilFan, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 349 × 159 mm, with 289 components from 29 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the USB2512B. By type, the board carries 84 LEDs, 83 switches, 83 diodes, 18 capacitors, 13 resistors and 2 ICs.

It belongs with the keyboards, displays & leds and iot & wireless designs in this gallery.

From the project

80% mechanical keyboard PCB: ESP32-S3, Kailh Choc V2, per-key SK6812 RGB, OLED, RTC, USB hub

An 80% mechanical keyboard PCB designed around the ESP32-S3, featuring low-profile Choc V2 switches, per-key RGB, an OLED display, and a USB hub.

- MCU: ESP32-S3-WROOM-1 (dual-core, Wi-Fi, Bluetooth) - USB Hub: USB2512B with 3x USB-C ports - Switches: 80x Kailh Choc V2 low-profile (5.5mm travel) - Lighting: 80x SK6812 Mini-E addressable RGB LEDs (reverse-mount on B.Cu) - Display: SSD1306 0.91" OLED (128x32, I2C) - RTC: DS3231SN precision real-time clock (I2C) - Encoder: EC11E rotary encoder with push switch - Mounting: 8x M2 mounting holes

Main components on the Ergon80

ESP32-S3-WROOM-1USB2512B

Ergon80 bill of materials (BOM)

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

QtyPartRefs
1
ESP32-S3-WROOM-1
U1
1
USB2512B
U2
1
24MHZ
24MHz
Y1
1
Encoder
ENC1
1
ESP_DEBUG
HDR1
80
CHOC_V2
Choc V2
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +72
3
Choc V2
SW81, SW82, SW83
1
USB-C 1
USB1
1
USB-C 2
USB2
1
USB-C 3
USB3
80
SK6812
LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +72
3
SK6812
LED81, LED82, LED83
1
SSD1306_0.91
SSD1306
OLED1
80
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +72
3
1N4148
D81, D82, D83
1
1000UF
1000uF
C1
3
100UF
1000uF
C2, C3, C4
4
10UF
100nF
C5, C6, C7, C8
1
100NF
100nF
C12
1
10UF
10uF
C13
Show 9 more
QtyPartRefs
2
22PF
22pF
C18, C19
5
100NF
100nF
C20, C21, C22, C23, C24
1
4.7UF
4.7uF
C25
2
5.1K
5.1k
R5, R6
1
100R
R7
6
10K
10k
R9, R10, R11, R12, R13, R14
1
12K
12k
R15
1
10K
10k
R16
2
22R
R17, R18

Ergon80 design files

The KiCad project lives in the PetrouilFan/ergon80 repository on GitHub; these links point at the commit this page was built from.

Ergon80: common questions

What microcontroller does the Ergon80 use?

The Ergon80 is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the Ergon80 PCB?

The Ergon80 measures 349 × 159 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Ergon80?

289 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 Ergon80 design files?

From the PetrouilFan/ergon80 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 Ergon80 design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

Can I test firmware for the Ergon80 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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