Ivan Holland

Raspberry Pi HC-SR04
HC-SR04 Ultrasonic Sensor The HC-SR04 ultrasonic sensor is a low cost ultrasonic ranging sensor which provides non-contact measurement functionality in a range from about 2cm to 4m. The sensor consists of a small circuit board containing an ultrasonic transmitter, receiver and control circuitry. It also has 4 pins; 2 for […]

HC-SR04 Ultrasonic Sensor

BeagleBone Blue The BeagleBone Blue is a complete, Linux-enabled robotics computer based on an Octavo Systems OSD3358 1GHz ARM Cortex-A8 processor. Its features include:- 512MB DDR3 RAM Integrated power management 2×32-bit 200-MHz programmable real-time units (PRUs) ARM Cortex-M3 On-board 4GB 8-bit eMMC flash storage programmed with Debian Linux It also includes a […]

BeagleBone Blue

BeagleBone and LED
The BeagleBone Green Wireless board is a new board from SeeedStudio; and I was lucky enough to find one on my desk last week. The BeagleBone Green Wireless board is based upon the open-source hardware design of the BeagleBone Black, but has the advantage of a high performance WiFi and […]

BeagleBone Green Wireless