Pick and Place App Control Robot

hello guys...welcome to our channel s_r tronicsour new project pic and place robot based on arduino controlled by a android phone app...Bluetooth Controlled Pick and Place Robot consists of a two wheeled robot fitted with a gripper arm. This robot can pick things using gripper from one place, perfor...
By: Sukanta bera

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Instructables 21 Oct 14:49

LoRa Weather Station

This is an example of a nice LoRa project. The weather station contains a temperature sensor, air pressure sensor and humidity sensor. The data is read out and sent to Cayenne Mydevices and Weather Underground using LoRa and The Things Network.Check if there is LoRa Gateway of the The Things Network...
By: muitg

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Instructables 21 Oct 13:43

Look what came out of my USB charger !

Quick Charge, Qualcomm’s power delivery over USB technology, was introduced in 2013 and has evolved over several versions offering increasing levels of power transfer. The current version — QCv3.0 — offers 18 W power at voltage levels between 3.6 V to 20 V.  Moreover, connected devices can negotiate and request any voltage between these two limits in 200 mV steps. After some tinkering, [Vincent Deconinck] succeeded in turning a Quick Charge 3.0 charger into a variable voltage power supply.

His blog post is a great introduction and walk through of the Quick Charge ecosystem. [Vincent] was motivated after reading about [Septillion] and [Hugatry]’s work on coaxing a QCv2.0 charger into a variable voltage source which could output either 5 V, 9 V or 12 V. He built upon their work and added QCv3.0 features to create a new QC3Control library.

To come to grips with what happens under the hood, he first obtained several QC2 and QC3 chargers, hooked them up to an Arduino, and ran the QC2Control library to see how they respond. There were some unexpected results; every time a 5 V handshake request was exchanged during QC mode, the chargers reset, their outputs dropped to 0 V and then settled back to a fixed 5 V output. After that, a fresh handshake was needed to revert to QC mode. Digging deeper, he learned that the Quick Charge system relies on specific control voltages being detected on the D+ and D- terminals of the USB port to determine mode and output voltage. These control voltages are generated using resistor networks connected to the microcontroller GPIO pins. After building a fresh resistor network designed to more closely produce the recommended control voltages, and then optimizing it further to use just two micro-controller pins, he was able to get it to work as expected. Armed with all of this information, he then proceeded to design the QC3Control library, available for download on GitHub.

Thanks to his new library and a dual output QC3 charger, he was able to generate the Jolly Wrencher on his Rigol, by getting the Arduino to quickly make voltage change requests.

Filed under: Arduino Hacks, hardware

TTDS (Traffic Ticket Detection System )

. The Idea and the Problems We Are Solving -We have faced alot of problems all over the world one ofthese problems that can't be denied is "Traffic"-So we decided to present our contributions and ideas to serve our society and solve these problems by our "TTDS""TTDS" or Traffic Ticket Detection S...
By: AhmedS17

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Instructables 21 Oct 02:07

Simple Arduino Sound Board

In this experiment you will understand how a passive buzzer works and how you can create a simple Arduino sound board. Using some buttons and choosing a corresponding tone, you can create a melody! The parts that I've used are from Kuman's Arduino UNO starter kit Parts needed You will need: an Ar...
By: Aleksandar Tsvetkov

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Instructables 20 Oct 21:08

Arduino Based Autonomous Bot Using Ultrasonic Sensor

Create your own Arduino based Autonomous Bot using Ultrasonic Sensor.This bot can pretty much move around on it's own without colliding with any obstacles. Basically what it does is it detects any kind of obstacles ( well not all kind of ) on its way and decides the best path for itself.So without w...
By: _Kripa_

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Instructables 20 Oct 20:28

Arduino and Morse Code

It could be said the Morse Code is all but dead. It has not been a Licence requirement for Radio Amateurs here in the UK since 2003 and many other countries have removed the compulsory Morse component from their Amateur radio licence requirements. But, because of the way in which Morse Code works, t...
By: DonX-Developer

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Instructables 20 Oct 18:26

DIY Home Automation Internet/Cloud Controlled (MQTT, IoT, From Anywhere in the World)

IT'S ACTUALLY INTERNET CONTROLLED NOT LIKE OTHER VAGUE PROJECTS... NOT WIFI ITS OVER INTERNET...IoT the most discussed subject in the world right now!! Cloud servers and services making this possible is the attraction point of today's world...RULING OUT THE DISTANCE BARRIER was and is the aim!!So no...
By: Abhrodeep Chanda

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Instructables 20 Oct 16:30

The Weather Followers randomizes your digital experience

As our lives become more and more automated, we tend to rely on computers and unseen algorithms to “protect” us from unapproved experiences. In order to illustrate this concept, and hopefully introduce serendipitous events to our digital lives, David Columbini has come up with an installation that feeds information to users via a web app, available only when it’s on display.

Instead of implementing a carefully designed algorithm, what users experience is based on constantly evolving local weather data sensed by a physical machine equipped with an Arduino Mega, a Raspberry Pi, various sensors, and some other components.

“The Weather Followers” is comprised of four different instruments: a wind-driven messaging app, a pollution-distorted selfie tool, a music player based on the rhythm of rain, and even a device that erases your feed depending on the sun’s intensity!

The installation is comprised of two elements, the four weather instruments and the webapp. Users are invited to connect to the weather machine through the webapp and choosing between one of the four weather instruments: Windy encounters (when your digital social life follows the wind), Polluted Selfie (when your digital individual life follows the pollution), Drizzly Rhythms (when your digital audio life follows the rain) and finally Sun(e)rase (when your digital overwhelming life follows the sun).

More details on the project can be found here. If you want to see another weather/digital world combination by Columbini, be sure to check out this balloon messaging system!

Arduino and NRF24L01

The reason behind this short learning curve:My son likes to be shut away in his room away from the rest of the noisy family. His mum needs his presence from time to time to help with his autistic brother and meals etc. He asked me about having something in his room that would save his mum going up a...
By: DonX-Developer

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Instructables 20 Oct 13:58