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Ravi Varma Polakonda

Hacker, Coder and Maker.

Hyderabad, India

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This user joined on 12/07/2015.

Projects I Like & Follow

The WiPhone project is an open source mobile IP phone. WiPhone is intended to be hackable, modular, cheap, and open, while remaining usable.

ESP32 WiPhone

Use a CC2531 USB Stick as a ZigBee Concentrator to replace your Philips HUE, Osram Lightify, Xiaomi/Aqara Hub, IKEA tradfri, etc. gateway.

ZigBee CC2531 smart home USB adapter

The 2018 Hackaday Prize

A 75 watt MPPT Solar Charger with tons of features. Efficiency > 97%, USB interface, data logging, 2 USB charging ports and much more...

High Efficiency MPPT Solar Charger

lukas-fssler Lukas Fässler

Reprogramming its controller board to use my own RF protocol

Hacking the Milight wireless bulbs

magnus-dagbro Magnus Dagbro

The 2017 Hackaday Prize

This project describes the use of Raspberry Pi as an IoT connected vital signs monitor. The HealthyPi HAT for Raspberry Pi used.

Connected Health: Open source IoT patient monitor

ashwin-k-whitchurch Ashwin K Whitchurch

In the true spirit of Star Trek, this communicator badge is completely autonomous, while fitting in the form factor of an original badge

Star Trek Communicator Badge

robotic writing clock

doodle clock #2

ekaggrat-singh-kalsi ekaggrat singh kalsi

The 2015 Hackaday Prize

Neucuff is a simple, powerful, safe exoskeleton for giving Cerebral Palsy patients control over their arms.

Neucuff: A soft orthotic exoskeleton

matthew-borgatti Matthew Borgatti

Upcycles D1 Mini Wemos board to create a USB connected ESP8266 Pogo pin jig.

ESP8266 Pogo Jig Programming Board

wing-tang-wong Wing Tang Wong

The 2017 Hackaday Prize

Automated Soap Bubble Machine controlled by Arduino with lasercut frame

Soap Bubble Machine

charlie-plexed 11x10 LED matrix, perfect fit for a word clock. Also LEDs soldered on upside down.

PCB word clock

Creating an open source platform for easily creating miniature and wearable electronics projects

MiniWear - DIY Miniature & Wearable Electronics

james-cannan James Cannan

The 2016 Hackaday Prize

Last-mile RF packet encryption for mass produced IoT devices through Telehash

IoT security for the masses

kumar-abhishek Kumar, Abhishek

The HDMI2USB project develops open hardware to record and stream HD videos (from HDMI & DisplayPort sources) for conferences and usergroups.

HDMI2USB.tv Open video capture hardware + firmware

tim-ansell Tim Ansell

VFD clock using opto-copplers as drivers and an arduino as the multiplexing controller

VFD clock with ESP8266 NTP sync

Cheap WiFi Module for Internet of Things (IoT) projects

ESP8266 Arduino Tutorial and Review

Energy Harvesting Sensor Board for PK-RF-31

PK-RF-Sense

I am developing a remote control of G-gage train model by TOSHIBA FlashAir and Arduino (ATmega328).

Remote control of G-gage train model by FlashAir

ayase-hiro AYASE Hiro

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