This project is about making portable luxmeter. It can be used in schools, where children can measure different kinds of light sources.Functions: 1. measure intensity of light in lux. 2. calculate solar irradiation from lux to watts/m2 (factor 112) 3. charging battery using USB port Total cost is around 13 $ without case. Luxmeter take 15 mA, so it will works long time on one Li-Ion battery. ...

The circuit presented here can automatically charge a 12V, 7Ah battery, or above. Special features of the charger are as follows. It automatically controls the charging current as per the status of the battery. Battery voltage level as well as charging status are indicated on the LCD display. The charger maintains float voltage, if battery is fully charged. Arduino identifies status of the battery connectio ...

(AllNewsStories Editorial):- Ahmedabad, Mar 5, 2019 (Issuewire.com) – The board we are talking about is a perfect solution for powering the 6V systems like Arduino and Raspi. The device will be live on Indiegogo soon. Arduino, Raspberry Pi and other development boards have gained much attention in the field of electronics and IOT. These boards are very useful for prototyping purpose. The powering board also ...

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 ...

  Arduino Uno is a microcontroller board based on the ATmega328P (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC ad ...

This project consists of a small robot controlled via WiFi using an Arduino MKR1000, MKR2UNO Shield Adapter and Arduino Motor Shield! Things used in this project Hardware components Arduino MKR1000 × 1 Arduino MKR2UNO Adapter × 1 Arduino MotorShield Rev3 × 1 Arduino Small DC Motor × 2 9V battery (generic) × 1 Arduino Battery snap × 1 Software apps and online services Arduino IDE Arduino Web Editor Hand tool ...

Suppose you are sitting in a room and feeling cold and you want your heater to be automatically turned on, and then off after some time when room temperature is increased, then this project help you to control your home appliances automatically according to the temperature. Here we are controlling Home AC Appliances with Arduino based on the temperature. Here we have used Thermistor to read the temperature. ...

Metal Detector is a security device which is used for detecting metals which can be harmful, at various places like Airports, shopping malls, cinemas etc. Previously we have made a very simple Metal detector without a microcontroller, now we are building the Metal Detector using Arduino. In this project, we are going to use a coil and capacitor which will be responsible for the detection of metals. Here we ...

Programming is always fun and Arduino is a wonderful platform if you are just getting started with Embedded programming. In this tutorial we will build our own calculator with Arduino. The values can be sent in through a keypad (4×4 keypad) and result can be viewed on a LCD screen (16×2 Dot-matrix). This calculator could perform simple operations like Addition, Subtraction, Multiplication and Division with ...

Do you have a pile of AA rechargeable batteries in your drawer? Some are old, some are new, but which sets would you bring with your camera on your next trip, and which ones are past their useful life? I like using rechargeable batteries, but I’m certain that some of them are not living up to the stated capacity on the label. So how good are those batteries? Simple battery testers measure the voltage, but t ...

Simple Solar Power Light contains energy. When light hits a conductor (or semiconductor) some of the energy is translated into moving electrons, creating current. We can harness the current using solar cells (aka photovoltaic cells). When the sun shines on a solar cell, the current output is mostly constant, which is known as direct current, DC. DC is easy to use and great for charging batteries and powerin ...

*NOTE* THIS PROJECT IS DONE BY A GROUP OF STUDENTS FROM SINGAPORE POLYTECHNIC. Telemetry - Solar Cells Our project is using Arduino with the ZigBee to transmit and receive data from the solar cell. Data will be shown in the LCD and the software called “X-CTU”. Components used: 1 Arduino Uno 1 ZigBee Shield (Transmitter) 1 ZigBee (Receiver) 1 LCD Monitor 1 Solar Cell 1Resistor (Value may change) Instructions ...