OpenPlotter – Sensors_a

Introduction In previous posts we examined how to install OpenPlotter (Ref.1), how to connect a GPS receiver (Ref.2), how to connect AIS (Ref.3), and how to receive VHF (Ref.4). In this post we will examine how to connect & detect a sensor module such as the GY-91 which is referenced in OpenPlotter documentation. This module… Continue reading OpenPlotter – Sensors_a

I2C Programming & Scope Detection

Introduction Recently I have been working with various sensors such as a magnetometer, gyroscope and accelerometer for use in navigational systems (Ref.1). All these sensors are accessed using the I2C protocol. Over the past several years I have worked with various HF synthesizers that were also programmed via I2C. I used a Tektronix TDS210 digital… Continue reading I2C Programming & Scope Detection

RTL-SDR for EPIRB

Introduction EPIRB or Emergency Position Indicating Radio Beacon Station is an emergency transmitting device that blue water sailors or explorers can use in case of distress. They have proven their worth over the years and are absolutely essential for anyone wanting to wander off the grid (Ref.1). At least 2000 people have been saved every… Continue reading RTL-SDR for EPIRB