During the month of July 2015, I completed a high school internship at Colorado State University, and one of the projects that I worked on was that of a infrared proximity sensor for Raspberry Pi. This short range infrared sensor can be attributed to a variety of applications, including line-following robots and motion activated cameras. […]
DIY Infrared Motion Sensor System for Raspberry Pi Read More »
Originally published in this blog. The goal of this tutorial is to demonstrate how you can read and write from a Bluetooth Low Energy (BLE) device. For example, if you want to read the ‘number of steps’ data from your fitbit and make interesting apps with it, In this tutorial, I am using a RedBearLab
Bluetooth Low Energy: Read-Write to Sensor Network from Raspberry Pi using Raspberry Pi Read More »
I have a driveway that is over 300 feet long and it is nice to have some advance notice that someone is driving or walking in. Previously, I have used a very expensive IR beam-break detector. It gave a lot of false alarms and eventually failed due to a lightning strike. It also required that
Interface to Wireless Driveway Sensor Read More »
DS18B20 is a commonly used temperature temperature sensor providing 9 bit to 12 bit digital Celsius temperature measurements. The sensor communicates over one wire bus. Each sensor has a 64 bit serial code enabling multiple sensors to be connected to the same one wire bus. The Raspberry Pi has drivers for one wired devices to
Interfacing DS18B20 Temperature sensor with Raspberry Pi Read More »
In our article DS18B20 Temperature Sensor with Raspberry Pi we detailed how the Raspberry Pi can be used to take temperature readings from a ds18b20 temperature sensor via the i2c protocol. Here we will expand that article to explain how multiple temperature sensors can be copnnected to the Raspberry Pi – particularly useful for example
Measure temperatures with a 1-wire DS18B20 sensor and Raspberry Pi Read More »
This tutorial will teach you how to create a network of cost effective, wireless sensor modules. Many of the ready-made wireless modules can be too expensive for use in multiple sensor units. While Wi-Fi and Zigbee modules are popular and easy to use, their cost can make their use in an array of sensors impractical.
Building a Wireless Sensor Network in Your Home Read More »
Project Description This project assumes you already have a Model A or B Raspberry Pi, power supply, HD card, screen, keyboard, network etc. Raspbian Wheezy OS. In this project I will show you how to construct a wireless switch. This project can be adapted to suit any application where you need a wireless
Construct a wireless switch or motion sensor Read More »
The BMP180 device is a digital barometric pressure sensor. This is available on a small module which provides access to the sensor via the I2C interface. This allows us to easily connect it to the Raspberry Pi with a minimum of wiring. My module is a small pcb measuring 15x13mm with a 5 pin header.
BMP180 I2C Digital Barometric Pressure Sensor Read More »
The Pi-PlatesppDAQC Data Acquisition and Control board is an ideal interface between sensors and a Raspberry Pi. With eight analog and eight digital inputs, up to sixteen channels of real world data can be captured by a single ppDAQC Pi-Plate. But, what can you do with that data? You can use it to control a
Streaming Sensor Data from a ppDAQC Pi Plate Using InitialState Read More »
