Category Archives: sensors

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

Build an Arduino based sonic pest repeller

Just in time for Summer, here’s a design for a sonic pest repeller. Carla Schroder developed this project which uses an Arduino Uno along with the WAVE shield and a Maxbotix ultrasonic rangefinder. This simple yet reportedly effective design senses … Read more