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LIM-Vario

loyermael·LIM-Vario·KiCAD/LIM_Vario/LIM_Vario.kicad_sch

This repository ships a schematic but no board layout.
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About the LIM-Vario PCB

LIM-Vario is an open source ESP32 PCB design by loyermael, published on GitHub under the GPL-3.0 license. It is a board, with 11 components from 10 distinct parts.

Its main chip is the ESP32-WROOM-32E, from the ESP32 family. Other key parts include the BMP388, ESP32-S3-WROOM-2, PAM8403D, LM2596S-5 and MAX-M10S. By type, the board carries 7 ICs, 2 connectors and 2 switches.

It belongs with the displays & leds, sensors and audio designs in this gallery.

From the project

Open source glider variometer - ESP32-S3 round display

Open-source inertial variometer & flight instrument for gliders

A dual-ESP32 soaring instrument pairing a Waveshare ESP32-S3 2.1″ round IPS display (480×480) with a dedicated sensor/calculator unit — inertial AHRS + Kalman variometer, total-energy compensation, thermal assistant, SD flight logging and a WiFi companion app.

- Overview - Key Features - System Architecture - Companion App - Hardware - Building & Flashing - Repository Structure - Development Tools - Roadmap - License

Main components on the LIM-Vario

BMP388ESP32-WROOM-32EESP32-S3-WROOM-2PAM8403DLM2596S-5MAX-M10S

LIM-Vario bill of materials (BOM)

11 components, 10 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
BMP388
IC1
1
ESP32-WROOM-32E
U1
1
ESP32-S3-WROOM-2
U2
1
PAM8403D
U3
1
—
U4
1
LM2596S-5
U5
1
MAX-M10S
U6
1
RJ45
J1
1
SpeakON_NL2
J2
2
RotaryEncoder_Switch
SW1, SW2

LIM-Vario design files

The KiCad project lives in the loyermael/LIM-Vario repository on GitHub; these links point at the commit this page was built from.

LIM-Vario: common questions

What microcontroller does the LIM-Vario use?

The LIM-Vario is built around the ESP32-WROOM-32E, from the ESP32 family.

How many components are on the LIM-Vario?

11 components, from 10 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 LIM-Vario design files?

From the loyermael/LIM-Vario repository on GitHub, which has the schematic and the BOM; the links under Design files point to each one.

Can I use the LIM-Vario design in my own project?

Yes, under the terms of its GPL-3.0 license, which loyermael chose for the repository.

Can I test firmware for the LIM-Vario 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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