Embedded Lab | Embedded Systems tutorials, projects, and more …

Personal space invader alarm bow tie

Posted on August 15, 2013 by R-B Leave a comment

We all have an invisible boundary around our body, which we call personal space. We certainly don’t like anybody piercing through this boundary. This personal space defender bow tie is a simple and elegant way to defend your personal space bubble from being invaded by close talkers. When somebody gets too close to you it flashes red lights for a few seconds. If the invader stays there, the lights keep flashing. The project uses FLORA, an Arduino -compatible wearable microcontroller board from Adafruit.

Microchip introduces new temperature sensors with 1.8V SMBus and I2C™ Interface

Posted on August 14, 2013 by R-B Leave a comment

Microchip Technology Inc. has announced a new six-member family of temperature sensor ICs called the EMC118X. This is the world’s first family of temp sensors with 1.8V SMBus and I2C™ communications, which is required for interfacing to the latest generation of smartphone, tablet and PC chipsets. Additionally, this integrated low-voltage I/O support reduces cost and board space because it is accomplished without an external voltage level shifter. These are also the first temp sensors to use an advanced sample-frequency-hopping filter, which enables temperature-monitoring traces of up to 8 inches in noisy environments with accurate readings. The EMC118X family serves a

New power supply boards added to our Tindie store

Posted on August 12, 2013 by R-B Leave a comment

We have added two new regulated power supply boards and one general purpose double-sided prototyping circuit board (7cm X 9cm) to our Tindie store today. Both the power supply boards provide constant 3.3V and 5.0V power supply derived from an unregulated DC input ranging from 6.5-12V. One is designed to serve power supply for a breadboard circuit whereas the other one can be enclosed within the project box along with the project circuit board. The boards are designed for low power applications (600 mA). The breadboard version can be powered either from a DC wall wart or 9V battery (connector

Implementing digital filters using PIC18F microcontrollers

Posted on August 12, 2013 by R-B Leave a comment

Microchip’s PIC18 family of microcontrollers are popularly known for their logic and controlling functions. In addition, these microcontrollers have builtin hardware multipliers and multiple file pointers. These features, along with the built-in analog-to-digital converter (ADC), make PIC18 microcontrollers a competent choice for applications where logic and controlling functions are combined with signal processing applications. This application note demonstrates how the PIC18 family of microcontrollers can be used to implement digital FIR and IIR filters.

Shoe-integrated sensor system to serve as a walking aid for visually impaired people

Posted on August 12, 2013 by R-B 2 comments

This shoe-integrated sensor system is supposed to serve as a walking aid for a person with impaired sight. It alerts the user about obstacles surrounding him. Based on the information received from multiple ultrasonic sensors attached to the shoes, an Arduino Mega 2560 board used in the project forms a virtual map of the surroundings. The user is alerted about any obstacle through a set of vibrating elements placed in the user’s trouser pockets.

« Older Entries Recent Entries »