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 automation scripts.

View Projects GitHub Profile

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",
        .site = "3aks.me",
        .hardware = {"ESP32", "CAN bus", "I2S"},
        .languages = {"C", "Python", "AutoHotkey"}
    };
    printf("Ready to flash.\n");
}

GCC 14.2 • Target: xtensa-esp32 MCU Ready

About

I got into hardware by solving specific annoyances with my own gear: car stereos that lacked modern Bluetooth, video streams that needed dedicated camera switching switches, and desktop apps that wouldn't listen to media keys.

Most of what I build involves wiring breadboards, laying out circuits, soldering components, and writing firmware in C or Python. When I am not working on physical devices, I write utilities to automate my desktop environment.

Projects

Real hardware, prototypes, and open source code.

Hardware

BMW Dual-MCU Bluetooth Audio Bridge

Dual-MCU hardware bridge that feeds Bluetooth audio into vintage BMW factory head-unit bus networks without replacing the original dashboard stereo.

Hack Club

Camera-Switching Macropad

Python

Physical macropad built for Hack Club. Uses dedicated hardware pushbuttons to cut between cameras and scenes during video calls and streams without taking hands off the desk.

Hardware

Custom-Mixer-ESP32

C / Python

Multi-channel audio mixing board powered by an ESP32. Interfaces rotary pots and sliders with audio streams for desktop volume control.

Hardware

VoltaMetric

Electronics

Connected benchtop multimeter for logging voltage, current, and battery levels over serial while prototyping circuits.

Software

Media-Keys-Fixer

AutoHotkey

Small Windows background script that forces multimedia keyboard play/pause/skip events to route directly to Spotify, even when focused in full-screen games.

Tools & Tech

Hardware & Embedded

ESP32 & microcontrollers
Embedded C & C++
Breadboard & schematic prototyping
Serial protocols: UART, I2C, SPI, CAN
Soldering & bench testing

Software & Scripting

Python
AutoHotkey (Windows automation)
Git & GitHub
HTML, CSS, JavaScript
Linux / command line

Workflow

PlatformIO & VS Code
Multimeters & Logic Analyzers
Hack Club Blueprint
GitHub Pages & DNS management

Terminal Shell

Type commands below or click quick shortcuts to inspect details right from the CLI.

guest@3aks.me: ~ (bash)

Suggested:

Connect

The best place to follow my projects, discuss hardware, or collaborate is on GitHub.

github.com/3aks