Hardware · Featured
C
BMW Dual-MCU Bluetooth Audio Bridge
A dual-MCU bridge that feeds Bluetooth audio into vintage BMW head-unit bus networks, without replacing the original dashboard stereo.
New
Cardiff Student Housing Finder
Building hardware & writing C / Python
Arjun Sharma.
I build microcontrollers, audio interfaces and custom electronics. Most of my work runs on ESP32s, bare-metal C or Python.
6
Public repos
ESP32 & C
Primary stack
Hack Club
Hardware maker
#include <stdio.h>
#include "3aks.h"
void main(void) {
dev_t me = {
.name = "Arjun Sharma",
.handle = "3aks",
.hardware = {"ESP32", "CAN", "I2S"},
.languages = {"C", "Python"}
};
printf("Ready to flash.\n");
}
GCC 14.2 • xtensa-esp32
MCU ready
About
I got into hardware by fixing my own gear. Car stereos without modern Bluetooth, streams that needed a real camera switcher, apps that ignored media keys.
Most of what I build means wiring breadboards, laying out circuits, soldering and writing firmware in C or Python. Between devices, I write tools that automate my desktop.
Projects
Things I've built.
Real hardware, prototypes and open source code.
Hack Club
Python
Camera-Switching Macropad
A physical macropad with dedicated buttons to cut between cameras and scenes during calls and streams.
Hardware
C / Python
Custom Mixer ESP32
A multi-channel mixing board on an ESP32. Rotary pots and sliders control desktop audio volumes.
Software
AutoHotkey
Media Keys Fixer
A small Windows script that routes play, pause and skip keys straight to Spotify, even inside full-screen games.
Software
Python
Cardiff Housing Finder
Every 3–9 bed student house in Cardiff from four letting agents in one place, with real walking distances to uni. Refreshes itself every few hours.
Toolkit
Tools & tech.
Hardware & embedded
- ESP32 & microcontrollers
- Embedded C & C++
- Breadboard & schematic prototyping
- UART, I2C, SPI, CAN
- Soldering & bench testing
Software & scripting
- Python
- AutoHotkey
- Git & GitHub
- HTML, CSS, JavaScript
- Linux & the command line
Workflow
- PlatformIO & VS Code
- Multimeters & logic analyzers
- Hack Club Blueprint
- GitHub Pages & DNS
Terminal
Ask the shell.
Type a command, or tap a suggestion.
Try
Let's build something.
Follow my projects on GitHub, or connect with me on LinkedIn to talk hardware or collaborate.