digital • Page 4 of 33 • Tech Projects

IoT Based Fingerprint Attendance System Using Evive (Arduino Based Embedded Platform)

Leave a Comment / Using Arduino / By Tech Master

Now, you can easily track attendance and clock working hours with the help of this easy and fun to make DIY fingerprint scanner! We’ll be using ThingSpeak to store and retrieve the data. All you require is a cardboard piece, some colored paper, a fingerprint sensor, evive, and lots of DIYing! Ready for some scanning …

IoT Based Fingerprint Attendance System Using Evive (Arduino Based Embedded Platform) Read More »

Solar Module Using Either Arduino UNO or TI Launchpad

Leave a Comment / Using Arduino / By Tech Master

This page maintains the necessary documentation (hardware & software) for recreating the Solar Hardware Module (“Solar Module”) using either Arduino UNO or TI Launchpad. Prior to creating the solar module, we performed several experiments using a custom built solar panel fixture. For more information on the solar panel fixture, see link below. Solar Panel Fixture Solar …

Solar Module Using Either Arduino UNO or TI Launchpad Read More »

Yet Another Arduino 110v Power Controller

Leave a Comment / Using Arduino / By Tech Master

This Instructable shows you how to build a four-gang outlet box in which each outlet is controlled via an Arduino (or any other TTL level signals). It differs from the other relay boxes in that it uses no circuit boards and has very few parts (one chip and 4 relays). Step 1: Assemble Materials/Review Plan Tools …

Yet Another Arduino 110v Power Controller Read More »

Solar Power Data Logger Using Arduino

Leave a Comment / Using Arduino / By Tech Master

Ever wanted to know how much solar power you could yield by putting PV cells in a specific place on or around your house? This Instructable shows you how to build a data logger based on an Arduino (or Genuino) Uno with data-logger-shield and a PV cell recording the electric power yielded during a sunny …

Solar Power Data Logger Using Arduino Read More »

Arduino Controlled Solar Fountain

Leave a Comment / Using Arduino / By Tech Master

A fountain can make a nice decorative fixture for your garden. But it isn’t always easy to run a power cord out to where you want it. So I decided to run it on solar power. The system is controlled by an Arduino. This allows you to save energy by programming when the fountain will …

Arduino Controlled Solar Fountain Read More »

Build A Color Changing LED Tree Using Arduino

Leave a Comment / Using Arduino / By Tech Master

Ever wanted an LED tree? Well now you can have your LED tree and eat it too (no, wait, you probably shouldn’t).. Step 1: Gather the parts You will need: 1x ATtiny85 10x male header pins Solid core wire, 2 colors A bunch of LEDs 1x Arduino Uno to program the ATtiny Step 2: Program …

Build A Color Changing LED Tree Using Arduino Read More »

Connecting a 12V relay to Arduino

Leave a Comment / Using Arduino / By Tech Master

To connect a 12V relay to the Arduino you need the following things: – 1 Arduino – 1 diode for example 1N4007 – 1 NPN transistor for example 2N2222 (in the US) or BC548 (in Europe) – 1 relay for example one with coil voltage 12V and switching voltage 125VAC/10 A – 1 multimeter Step …

Connecting a 12V relay to Arduino Read More »

Easily control your iPod using Arduino

Leave a Comment / Using Arduino / By Tech Master

Easily control your iPod with Arduino using serial commands. This instructable includes the schematic, the code and some extra info; everything you need to make this work. USB,battery or wall power supply powered. Step 1: What you need Parts: 5x 1K ohm resistors 2x 1M ohm resistors 1x 12K ohm resistors 1x 1.5K ohm resistors …

Easily control your iPod using Arduino Read More »

SPI Interfaces using Arduino

Leave a Comment / Using Arduino / By Tech Master

Update (6/7/2012) – I’ve had to disable comments on this post, because it is being targeted by spam bots for some reason. Please use the contact page if you have a question about this topic. [box type=”note” color=” #202020 ” bg=”#ffbb00 ” font=”verdana” fontsize=”14″ radius=”20 ” border=”#000″ float=”right” head=”Attributes”]Thanks to Jeremy , for this articles[/box] In this …

SPI Interfaces using Arduino Read More »

MCP41100 an Arduino Controlled Potentiometer

Leave a Comment / Using Arduino / By Tech Master

We know the analog potentiometer , is a three-terminal resistor with a sliding contact that forms an adjustable voltage divider . MCP41100 an Arduino Controlled Potentiometer: 1)volume controls on audio equipment. 2) Control the amplifier Gain and offset . 3) Transducer ” displacement transducers “. and many Other application , But did you you want to …

MCP41100 an Arduino Controlled Potentiometer Read More »