Systems of Systems

Tehnohack 2014. Helping out for a day with building a secure NFC doorlock.

GeoScope, a web-based sensor map. Configured for UAV photo-mission control, receiving results live over on-board modem downlink.

UAV on-board hardware.

Left: Raspberry Pi B for command and communications, Internet-linked on a 3G USB Huawei E3131 modem, flat cable leads to a camera module.

Right: UAV auto-pilot from Threod, serial-linked to Raspberry Pi GPIO pins, provides a steady status feed and accepts MAVLink commands to execute a flight mission.

Writing a TinyOS driver for an analogue magnetometer.

Web prototype for a nursing home sleep monitor prospect. Initially using Beddit sleep monitors.

SerialReader: a data plotter for data feeds. Plotting output of a PIR movement sensor (passive infrared), received from a serially connected mote over a radio mesh network.

Reading four accelerometers joined to one SPI bus with a Gumstix Overo. Building a prototype sleep monitor.

Preliminary research for an automated berry sorting machine. Recognizing spoilage by matching prepared HSV histogram patterns.

Linux kernel driver for reading 3 ADC chips on analog magnetometers over SPI pins and exposing X-Y-Z axis values on /dev/spiadc as running text lines.