Latching power switch uses momentary-action pushbutton

Most inexpensive pushbutton switches, particularly pc-board-mounting and membrane types, have momentary action. Latching types are often larger and relatively expensive, and they frequently are unavailable in the style you'd like to use. You can thus have a problem if you need a small, inexpensive on/off switch for latching power to a load. The circuit in Figure 1 shows how you can use a simple, momentary-a ...

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Getting weather data

With this tutorial, you will learn how to get the weather data from a web service to your Arduino. Things used in this project Hardware components Arduino MKR1000 × 1 Story In this tutorial we would make use of the WiFiConnection of our mkr1000. We will get weather forecast of and activate the relay, connected to the water pump, only if there is no rain at the horizon. Connect to the openWeatherMap API we w ...

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Project: Gesture Controlled Mouse (Air Mouse) Using Arduino & Accelerometer

AIR Mouse is also called gesture-controlled mouse and it works based on hand gesture. In this project an accelerometer is used for measuring the tilt of hand in X and Y direction and moves the cursor according the tilt. In the project two types of circuit are used, one is the transmitter circuit and other is the receiver circuit. Transmitter circuit makes use of MPU6050 series of accelerometer, which is con ...

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How to measure temperature very accurately with an Arduino

While studying in university we were challenged as part of a course work into designing a box with very accurate temperature control. If the project were to succeed, multiple boxes were to be built and used in a research project studying the effect of surface material on the perceived temperature of flooring and other building materials. The project was deemed as very challenging by the university staff bec ...

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Mind Control Drone

Learn how to lift-off a drone with your mind and a hacked controller using a MindWave sensor, Arduino MKR1000 and Processing. Things used in this project Hardware components Arduino MKR1000 × 1 Micro Racing Drone × 1 Capacitor 100 µF × 4 Resistor 221 ohm × 4 Jumper wires (generic) × 12 Breadboard (generic) × 1 Mindwave Neurosky × 1 Software apps and online services Processing 3 Arduino IDE Hand tools and fa ...

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DIY: Measuring Wheel/Surveyor’s Wheel Using Arduino & Rotary Encoder

DIY: Measuring Wheel/Surveyor’s Wheel Using Arduino & Rotary Encoder A surveyor’s wheel may also be known by other names like: clickwheel, hodometer, waywiser, trundle wheel, measuring wheel or a perambulator. All these devices serve a single purpose, which is, measuring distance. The origin of surveyor’s Wheel is from an odometer. Odometer simply counts the number of rotations of the wheel. The distanc ...

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Project: Auto Intensity Control Of Street Light Using Arduino

Auto Intensity Control Of Street Light Using Arduino In this project, I am going to show you how to control the intensity of LED lights according to the time and the light intensity of outer atmosphere. This is an amazing and very useful project because it prevents the wastage of electricity. This project automatically turns on the streetlight at evening and turns off in the morning. It also controls the in ...

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Sensing current on the high side

As EDN's Design Ideas editor, I see a range of design submissions, from good, to not so good. A recent DI I turned down for several reasons included a high-side current sense circuit with implementation problems. This got me thinking about the different ways to accomplish current sensing on a voltage rail. At their heart, the majority of DC current sense circuits start with a resistance in a supply line (th ...

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Control the Position of a Continuous Rotation Servo via WiFi

Position control using wifi from a smartphone sounds too good to be true? Do it with MKR1000. Things used in this project Hardware components Arduino MKR1000 × 1 Hand tools and fabrication machines 3D Printer (generic) Story Many position control use steppers because they are easy to deal with and are cheap. RC servos are easy and cheap too, but they are limited to half revolution. Continuous rotation servo ...

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Project: Home Automation Using IR Remote Control

Arduino-Remote Control Home Automation In this project, we are going to show you how to control home appliances using a TV Remote. This same principle can be applicable in offices and industries as well. The project deals with the automation of four home appliances, like Tube lights, fan, bulbs, and of course TV. To automate them, four relays must be used. The circuit provided below is designed to switch th ...

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Smartphone Controlled Atomic Weather Station

This project combines Atomic Time keeping with local weather station, and additional cool projects using Arduino and Raspberry Pi. Things used in this project Hardware components Arduino UNO & Genuino UNO × 1 Raspberry Pi 2 Model B × 1 Adafruit Ultimate GPS Breakout × 1 DHT22 Temperature Sensor × 1 Adafruit RGB Backlight LCD - 16x2 × 1 Adafruit Speaker - 3" Diameter - 8 Ohm 1 Watt × 1 Adafruit White LED ...

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Create Mobile Apps for Android and iOS Connecting to the MKR

This simple project shows how to make an app that controls an Arduino MKR1000 board with Evothings Studio by communicating over the TCP. Things used in this project Hardware components Arduino MKR1000 × 1 LED (generic) × 1 Resistor 100 ohm × 1 Jumper wires (generic) × 1 Breadboard (generic) × 1 Software apps and online services Evothings Studio Arduino IDE Story MKR1000 is a powerful board that combines the ...

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