Category Archives: sensors

Easy Pulse Plugin, an Arduino pulse sensor

in Arduino, sensors by DP | 0 comments

Raj over at Embedded Lab has written an article detailing the new version of their Easy Pulse Sensor: the Easy Pulse Plugin, an Arduino and chipKIT compatible pulse sensor based on Photoplethysmography Today we are happy to announce the release of a new addition to … Read more

Obstacle sensing walking stick for visually impaired persons

in PIC, sensors by DP | 0 comments

Avinash Gupta wrote an article detailing his smart walking stick project for visually impaired persons This project is designed to guide a visually impaired person to walk and avoid bumping into obstacles. Low cost ultrasonic rangefinders along with a microcontroller is used … Read more

Reverse engineering a Verisure wireless alarm

Here’s an informative two-part series of posts over at FunOverIP detailing how to reverse engineer a Verisure wireless alarm. Part 1 details the beginning steps such as finding the modules radio frequency and modulation type, analyzing the chipset datasheet and … Read more

OV7670 image sensor data capture with Atxmega32E5 without using external FIFO

in project logs, sensors by DP | 0 comments

Kehribar has interfaced a OV7670 camera module with Xmegae5 microcontroller without external FIFO: With current configuration, this system sends 20FPS 80×60 grayscale image data over 3Mbaud serial stream. There is 3 byte preamble {0xAA,0x55,0xAA} to indicate the start of a … Read more