Design Portable Hybrid Inverter

I need help designing a portable hybrid inverter using ESP32 and KiCad. The inverter should handle solar, AC grid power and Car DC inputs to charge the battery and


Hi there! I’m working on my dream product: a portable hybrid inverter designed for my travelling purpose, as I'm a traveller.

I’ve outlined the full concept, and now I need help turning it into a complete, functional design package.

What I'm Building:

A suitcase-style portable power system that:

Supports 2 battery variants: Li-ion (18650 or 21700) and LiFePO4 (100Ah)

Inputs: Solar (MPPT), AC (SMPS), Car DC input

Outputs:

AC socket (1000W)

3× USB-A 3.2 ports

2× USB-C PD ports 100 watts

DC barrel jacks with variable voltage

Wireless charging + Bluetooth speaker + 50W light

Smart control using ESP32 (Bluetooth, Wi-Fi, android app, display screen)

Enclosure: suitcase/speaker style with handle and wheels

Optional: external battery expansion via XT90 port

I Need Help With:

Complete Hardware Design

Circuit schematic in KiCad (with support for both battery types)

Smart switching between 3 input sources

Battery protection, BMS integration, AC inverter stage

PCB Design

Full layout (KiCad)

Output: Gerber files, BOM

ESP32 Firmware (Arduino IDE or PlatformIO)

Read battery voltage/current and the whole device status

Bluetooth communication with mobile app

Display integration

LED/Buzzer control

3D Enclosure Design

For laser-cut acrylic or 3D-printed shell

Space for all ports, display, cooling, speaker

(Optional) App UI Mockup

For future Bluetooth mobile app

Tags:
ESP32, KiCad, Portable Inverter, PCB Design, MPPT Charger, DC to AC, Battery Management System, Li-ion, LiFePO4, Embedded, Arduino, 3D Enclosure

Please provide your portfolio and relevant experience.