// Hello, World!

Hi, I'm Pavel Chládek

Hardware & Software Engineer — Building electronics from scratch.
PCBs · Embedded Systems · 3D Printing · FPV Drones.

First-Principles Engineering

I'm an engineer who builds things from the ground up — from raw silicon to flying platforms. Whether it's routing differential pairs on a 4-layer stack-up or tuning PID loops in firmware, I care deeply about understanding every layer of the system.

My workflow spans KiCad for schematic capture and PCB layout, Autodesk Fusion 360 for mechanical enclosures and drone frames, and C/C++ for bare-metal microcontroller firmware. I've designed boards around STM32 Cortex-M4 cores, written custom HAL drivers, and tuned Klipper to coax sub-0.1 mm precision out of 3D printers.

On the aerial side, I build and fly custom FPV and autonomous drones, integrating ExpressLRS for low-latency datalinks and developing my own flight-computer hardware rather than relying on off-the-shelf stacks.

I believe that understanding hardware at the transistor level makes you a better software engineer, and vice-versa — the best systems are designed by people who think across the full stack.

🔧

PCB Design

4-layer boards in KiCad — power planes, controlled impedance, DFM-ready Gerbers.

⚙️

Embedded C / C++

STM32 bare-metal firmware, custom HAL drivers, RTOS integration.

🖨️

3D Printing & Klipper

Fusion 360 CAD + custom controller boards running Klipper for precision FDM.

🚁

FPV & Autonomous Drones

Custom flight computers, ExpressLRS integration, full-stack from airframe to firmware.

Tools & Technologies

The toolbox I reach for when designing, building, and deploying real systems.

🔲 KiCad PCB Design
📐 Fusion 360 3D CAD
⚙️ C / C++ Firmware
🐍 Python Scripting
🌐 PHP Back-end
💾 STM32 Cortex-M MCUs
🖨️ Klipper 3D Printing
📡 FPV Systems ExpressLRS / VTX
🔌 UART/SPI/I²C Protocols
🦾 Raspberry Pi SBC / Linux
🧠 ESP32 IoT / RF
📏 Altium PCB (learning)

Selected Builds

Hardware & firmware projects designed, built, and shipped from scratch.

🛩️
In Development

PCB / Autonomous Flight

Aero-Zero

Custom 4-layer STM32F405 autonomous flight computer with onboard Raspberry Pi Zero 2 W and ExpressLRS integration.

STM32F405 KiCad 4-Layer PCB ExpressLRS +3 more
📡
Prototype

ESP32 / Multi-Tool

Fliphack

Portable ESP32-S3 hacking multi-tool with GPS, nRF24, CC1101, PN532 NFC, and sub-GHz/Wi-Fi antennas.

ESP32-S3 CC1101 nRF24 NFC +4 more
🖨️
Complete

3D Printing / Klipper

Super3DMaker

Custom 32-bit STM32F407VET6 controller board for 3D printers running Klipper firmware.

STM32F407 Klipper 3D Printing KiCad +2 more

Let's Build Something

Have a project in mind, want to collaborate, or just want to geek out about hardware? Drop me a line.

I'm always happy to discuss custom electronics design, embedded systems consulting, or cool drone projects. If you have an idea that needs hardware, I'd love to hear it.