The Guardian Project is about more than just apps. All of our code is open-source in order to move the collective ball forward in mobile security efforts. In addition we are building developer-focused libraries, tools and source code for you to add security-oriented features and capabilities to your own apps.

A blog about RTL-SDR (RTL2832) and cheap software defined radio

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comparison between digital (i2c) gyro l3gd20 and analog gyro ly3200alh (zero adjusted). 1 ms samples as board was spun by hand.

the µRuler is a ruler made out of Printed Circuit Board (PCB) material.

The Rotary Magnetic Position Sensor product family detects the absolute angular orientation of an on-axis 2-pole magnet rotating over the center of the IC. The absolute angular position can be displayed on different outputs as PWM, ABI, UVW or directly read through the interface. According to the application’s requirements different resolutions from 8-bit up to 14-bit are available. This technology can be employed in high accuracy angle position detection, high speed rotation systems and motor control (BLDC motors). All Rotary Magnetic Position Sensors can replace both absolute and incremental optical sensors, other magnetic and inductive technologies, potentiometers and magnetic switches.

Tessel is an Internet-connected microcontroller for software developers.

LMDB is an ultra-fast, ultra-compact key-value data store developed by Symas for the OpenLDAP Project.