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VFD-HMI-Module

DriveLink-HM·DriveLink·HMI/PCB/VFD-HMI-Module.kicad_pcb

VFD-HMI-Module layout, top view — open source ESP32 board by DriveLink-HM

About the VFD-HMI-Module

VFD-HMI-Module is an open source ESP32 PCB design by DriveLink-HM, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 65 × 35 mm, with 21 components from 12 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. By type, the board carries 8 capacitors, 7 resistors, 3 connectors, 2 switches and 1 IC.

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

From the project

A Variable Frequency Drive, designed and built for Projekt Mechatronik in SoSe26

An open-hardware variable frequency drive (VFD) for three-phase induction motors, developed for the course Projekt Mechatronik at Munich University of Applied Sciences (HM).

DriveLink rectifies single-phase 230 V AC mains into a ≈325 V DC link and drives the motor through an Infineon IM06B50GC1 CIPOS Mini intelligent power module (600 V / 50 A). The power stage is controlled by an STM32G474 whose firmware is generated from a PLECS model, while a detachable ESP32-S3 HMI provides an OLED display, rotary-encoder control, and a WiFi web dashboard. This repository contains everything needed to…

VFD-HMI-Module, from the project README
From the project README

Main components on the VFD-HMI-Module

ESP32-S3-WROOM-1

VFD-HMI-Module bill of materials (BOM)

21 components, 12 distinct parts.

QtyPartRefs
1
ESP32-S3-WROOM-1
U1
1
Conn_01x04_Pin
J1
1
Conn_01x05_Socket
J2
1
Conn_01x09_Pin
J3
2
SW_Push
SW0, SW1
1
10u
C1
3
0.1u
C2, C4, C8
1
1u
C3
3
DNP
C5, C6, C7
3
DNP
R1, R2, R3
2
10k
R5, R8
2
4.7k
R6, R7

VFD-HMI-Module design files

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

VFD-HMI-Module: common questions

What microcontroller does the VFD-HMI-Module use?

The VFD-HMI-Module is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the VFD-HMI-Module?

The VFD-HMI-Module measures 65 × 35 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the VFD-HMI-Module?

21 components, from 12 distinct parts. The full bill of materials is listed on this page.

Where can I download the VFD-HMI-Module design files?

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

Can I use the VFD-HMI-Module design in my own project?

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

Can I test firmware for the VFD-HMI-Module 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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