QUICK FACE RECOGNITION WITH AN FPGA

It’s the 21st century, and according to a lot of sci-fi movies we should have perfected AI by now, right? Well we are getting there, and this project from a group of Cornell University students titled, “FPGA kNN Recognition” is a graceful attempt at facial recognition. For the uninitiated, the K-nearest neighbors or kNN Algorithm is a very simple classification algorithm that uses similarities between given ...

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Controlling Arduino with Raspberry Pi using pyFirmata

Controlling Arduino with Raspberry Pi using pyFirmata Although Raspberry Pi and Arduino are two different hardware in terms of their applications and structure, but they both are considered as two competing open source hardware platforms. They both have very strong community and support. Today we will slightly change things, and show you how we can take advantage of both of them. If you have both Arduino an ...

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Drone The Quadcopter

"Drone The Quadcopter" is an featured UAV. I design my project with F450 arm in X-mode design. The full operation takes place via a Flysky FSCT6 remote control unit which gives a better operating range of 800 Meter to 1.2KM. If you are a beginner in this field then you are on the right place. The ultimate goal of our project is to learn aerial vehicles which can be flyover a long height and over a long rang ...

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OurPCB Released “Arduino Ultrasonic Sensor – Complete Guide to HC-SR04.”

OurPCB is a multi-national PCB Manufacturing and PCB Assembly company, and today published a Guide on  "Arduino Ultrasonic Sensor-A Complete Guide on HC-SR04". It has five chapters that cover every detail about Arduino Ultrasonic Sensor. The publication is available on the https://www.ourpcb.com/arduino-ultrasonic-sensor.htmlsection of the company’s website for free. It is a simple guide authored by the Our ...

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Projecta: A Solution For PCB Printing

About From USA, Europe, China, and from Japan to India; from the Middle East and Hong Kong, we have been looking to find a creative solution for the most critical issue in electronic design: (PCB Fabrication). When you want to turn your innovation from a mere idea to a real product, you won't have to spend days in prototyping or weeks waiting for factories in order to see your dream becoming a reality. Our ...

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MUG-O-MATIC PLOTS ON COFFEE MUGS

There is something fascinating about watching an autonomous machine. An automatic car wash, a soda vending machine that picks up the product behind a window, a plotter, or a robot like a CNC or 3D printer are all interesting to watch. Although [EngineerDog] bills Mug-O-Matic as a tiny CNC, we think it is more of a plotter for coffee mugs. It’s still fun to watch though, as you can see in the video below. Th ...

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Raspberry Pi hosts Arduino PRO Gateway for LoRa comms

Massimo Banzi, co-founder of Arduino, introduced the new Arduino approach to reducing the complexity of building a LoRA network. Connect a MKR WAN 1300 board to the gateway and load data to the cloud is the promise. To be precise, you can pre-order the kit now, with availability expected at the start of 2019. The 868 MHz (Europe) version can be pre-ordered from the Arduino Store. It’s priced at €350.00 (for ...

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DIY Self Balancing Robot using Arduino

After being inspired by RYNO motors and other self balancing scooters from Segway, I always wanted to build something similar. Thinking for while, I decided to build a Self Balancing Robot using Arduino. This way I would be able to grasp the underlying concept behind all these scooters and also learn how PID algorithm works. Once I started building, I realised that this bot is a bit of a challenge to build. ...

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How To Configure a 555 Timer IC

The 555 timer was introduced over 40 years ago. Due to its relative simplicity, ease of use and low cost it has been used in literally thousands of applications and is still widely available. Here we describe how to configure a standard 555 IC to perform two of its most common functions - as a timer in monostable mode and as a square wave oscillator in astable mode. 555 Signals and Pinout (8 pin DIP) Figure ...

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Bi-Directional Voltage Level Translator

While most of my microcontroller designs run on 3.3 volts there is still the ocasional 5 volt design. Or I do something with an Arduino. So the need may arise to interface between logic working at different voltage levels. There are several ways of doing this, depending on your needs. Things are relatively simple as long as you know in advance which side is transmitting and which side is receiving. It gets ...

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Arduino Wattmeter: Measure Voltage, Current and Power Consumption

As electronics engineers, we always depend upon meters/instruments to measure and analyse the working of a circuit. Starting with a simple multimeter to a complex power quality analysers or DSOs everything has their own unique applications. Most of these meters are readily available and can be purchased based on the parameters to be measured and their accuracy. But sometimes we might end up in a situation w ...

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Cheap homemade 30 MHz – 6 GHz vector network analyzer

Introduction Vector network analyzer (VNA) are used to measure scattering parameters of high frequency circuits. When frequency is high enough the reflections of the waves start to matter and distributed effects need to be taken into account. VNA can be used to analyze reflection and transmission coefficients of circuits at high frequencies. For example ideally antenna would radiate all the energy it gets, ...

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