Welcome to ‘The Hacker Diary’! This is a place where a couple of engineers engage in crazy adventures with everyday devices, decouple its abstraction and share the tale with the world.
You can find a list of projects and their corresponding Blog posts below.
Our YouTube channel : Maker Movement
3.5mm headphone jack
Preparing a headphone jack for hacking
Every speaker is also a microphone
The Anatomy of a headphone jack
How does a computer know that you have plugged in a jack ?
Testing basic headphone jack functions (Android)
Don’t do this! – Headphone jack
Speaker Impedance and the Headphone jack
The Ultimate Guide to using LEDs with headphone jack
Vibration motor meets the headphone jack
LiFi using solar panel and headphone jack
LiFi using IR sensor, Arduino and headphone jack
Really simple “mobile phone detector” using headphone jack
Lightning detector with nothing more than a simple headphone jack
Headphone jack meets a spark gap
Detect switching ON/OFF of Tube-light with a simple headphone jack
Cigarette Lighter spark detection using headphone jack
Transmitting in the RF range using the headphone jack
Listening to radio signals from a remote control car using a headphone jack
Obstacle detector “with audible feedback” using headphone jack, IR sensor and 555 timer
Drawdio
Making sensors come alive using the drawdio circuit
Wireless Drawdio and Body Coupled Communciation using the headphone jack
USB
Getting started with the USB-TTL converter
Switch on and off led in Arduino using PySerial
Grand Unification of USB and headphone jack
Audio
It is ridiculously easy to generate any audio wave signal in Python
Linux
– Exploring /dev/input directory
The hacker Diary 