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Building a simple digital light meter using Arduino and BH1750FVI sensor
A light meter is a device that measures the intensity of light. It finds applications in schools, hospitals, production areas, passageways and more to measure and maintain proper lighting levels. It is...
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Arduino volt-amp-watt meter
Here is a very simple digital watt meter using the Arduino platform and ZXCT1010 current sensor. The author used Arduino nano V3 board for this project. The project displays output voltage, load...
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Two way Bluetooth between Arduino and Android
This instructable describes an Android application named Andruino that can be used to control an Arduino board from an Android phone. It’s both an Android app and an Arduino program, and provides a...
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DIY FM transmission station using Arduino
This project describes an Arduino-based FM transmission using the KT0803K Digital Stereo FM Transmitter Radio-Station-on-a-Chip. The KT0803K device is designed to process high fidelity stereo audio...
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Arduino clock with MP3 alarm
Here’s a very nice digital alarm clock using Arduino and VS1053 MP3 decoder board. VS1053b is a single-chip MP3/AAC/-WMA/MIDI audio decoder that contains a high-performance, proprietary low-power DSP...
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Arduino cell phone
This instructable describes how to make a DIY GSM phone using Arduino Uno and GSM/GPRS shield. The project uses a TFT LCD with touch screen to provide an user interface required to operate the phone....
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mbed powered automated Sun tracker
Maximizing power output from a solar system is desirable to increase efficiency. One way of maximizing power output is by keeping the solar panels always aligned with the sun. This requires a means of...
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Universal TV sleep timer project
This TV-Go-Sleep timer turns off any TV after a preset delay time. This project is built around an Arduino microcontroller that uses an open source TV-B-Gone library. The hardware part consists of a...
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Application of ambient light sensors (ALS) in portable electronics
ROHM Semiconductors presents this white paper on the Applications of Ambient Light sensors in Portable Electronics. In portable electronic products, reducing the power consumption to provide the user...
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Making a digital color sensor using RGB LED and photo-cell
Electronic color sensors find applications in many automated processes such as sorting objects by color, detecting presence of a color coating, etc to improve quality at production line speeds. The...
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SPI7SEGDISP4.40-1R LED displays are back in stock
SPI7SEGDISP4.40-1R is a serial 4-digit seven segment LED display based on MAXIM’s MAX7219 device. This display module can be interfaced with any microcontroller that has 3 I/O pins available. If the...
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MikroElektronika’s new Thunder Click board
MikroElektronika introduces Thunder Click board which has AS3935 lightning sensor as well as MA5532 coil antenna. It is capable of detecting potentially hazardous lightning activity in the vicinity and...
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Arduino RoverBot receives commands from a TV remote
A 15 year old Arduino hacker has written this instructable on building an Arduino RoverBot that is controlled through a TV remote. The Arduino-IRremote library is used to decode the IR signals received...
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Laser gun shooting game
Summer is at its peak and if you are looking for an indoor fun project, you might be interested to build this Laser Shooting Game. The project uses two Arduino mini boards; one for a target board and...
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Chip-On-Glass (COG) technology for LCD displays
LCD displays are commonly supplied as a module with a built-in driver circuitry usually mounted on a PCB at the rear of the module. While this strengthen the module mechanically, it has some drawbacks...
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Raspberry Pi based surveillance system for an injured bird
Jorge Rancé found a wounded bird on street which he brought home. Until the bird gets recovered completely, he needed a tool to monitor the health progress of the bird from remote when he is not at...
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Proper PCB grounding for mixed-signal designs
Circuit board designers have always concerns about the proper way to handle grounding for integrated circuits (ICs), which have separate analog and digital grounds. This tutorial from MAXIM integrated...
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Chirp: An open source plant watering alarm using Attiny44A
Your favorite plants need plenty of water to grow. If you keep forgetting to water your house plants you might be interested in this plant watering alarm device called Chirp. Chirp uses capacitive...
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Desk panic button to get rid of annoying coworkers
Workplace is a jumble of many different personalities and we all find some difficult people to deal with. If you are often annoyed by your coworkers who just walk over to your desk and rope you into...
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MAXIM’s DeepCover MAXQ1050 Secure Microcontroller to protect your embedded...
Malware injection has become a critical threat to embedded systems. Implementing an asymmetric cryptography-based secure boot is the best protection against this class of attacks. This application note...
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