Turn your Raspberry Pi into a Hamster Fitness Tracker

Have you ever wondered just how much your hamster runs throughout the day/night? How far? How fast? My 9 year old daughter did, and we decided to find out. Turns out, it was pretty easy, and the results were unbelievable. Here are the supplies you will need: An internet connected Raspberry Pi or your single-board computer of choice. A laser break beam sensor (such as this sensor from Adafruit – https://www. ...

Read more

Make a fire detector in minutes with Samsung SAMIIO, Arduino UNO and Raspberry Pi

Let's build an IoT device that sends flame sensor data to SAMI using SAMI's WebSockets. The IoT device consists of an off-the-shelf sensor, Arduino UNO and Raspberry Pi. In this implementation, a Simple Manifest is used to create a new device type quickly. Then you can easily connect the IoT device to SAMI, and start to send sensor data from the device to SAMI. Prerequisites '''For this tutorial you should ...

Read more

Make An Auto-Locking Office Door with Smartphone Proximity Sensor

Pssst – want some high tech protection for your home office, or a secret lock for your “workshop” (ok, you got me, it’s actually a dungeon/gaming room) that the kids won’t be able to figure out? We’ve got you covered. Let’s build a DIY smart lock that automatically detects when you’re there, and locks when you’re not. How does it work? NOBODY KNOWS! Or more specifically, Bluetooth. The Concept Your smartpho ...

Read more

Raspberry Pi digital Hall sensor in JAVA

All right this is the review on the next two lessons on linear hall sensors. Lesson 02 uses an analog linear hall sensor and an analog to digital conver IC ADC0832. The lesson 03 uses a linear hall sensor with added comparator, which allows some sensitivity tuning of the sensors by adjusting the potentiometer. The code for both lessons is the same, thus the review is all in one post.   The fun part of this ...

Read more

Easy DIY baby crying detector with Raspberry Pi

In this instructable we will learn how to make a simple yet effective baby monitor that detects and alerts you whenever the baby is crying. We used Philips Hue as an alert system but you can choose a different item or channel to get notified. Besides, while commercial baby monitors will cost you a couple hundred dollars, this one comes at the fraction of it and can be reused when the baby grows up! The prob ...

Read more

Pan / Tilt face tracking with the raspberry pi

With some effort I have found that controlling two servo motors to allow a webcam to pan/tilt while tracking a face in real time using the raspberry pi not as impossible as it may at first seem. With some careful tweaking and code optimization I was able to allow the pi to keep up with two servos while running OpenCV face detection at 320x240 looking for a right profile,left profile, and frontal face and ad ...

Read more

Raspberry Pi Temperature and Light Sensor

Design Required 2 x DS18B20, 2 x 4.7k resistor The DS18B20 is a rather useful sensor because you can read more than one of them using the same GPIO pin. The Raspberry Pi is able to recognise the input from each separate sensor. This system is called “1-wire”, although the sensor still needs power and GND connections. Breadboarding Basics. The way a breadboard works is like this... There are red and blue rai ...

Read more

Detecting a button press through GPIO using Raspberry pi

If you want to build electronic devices, at some point you're going to need to read data through GPIO. In this exercise, we're going to read the value of a push button on a breadboard. Set up the circuit as shown in the pictures on the right. Note that one end of the 4.7kOhm resistor connected to pin 23 is connected to the positive supply rail. The red jum[er cable links the positive rail on the breadboard ...

Read more

Motion Sensor using Raspberry Pi

This example shows how to use Raspberry Pi® hardware to interface to a motion sensor and control an external LED. Introduction Raspberry Pi target enables you to create and run Simulink® models on Raspberry Pi hardware. The target includes a library of Simulink blocks for configuring and accessing Raspberry Pi peripherals. In this example you will learn how to create a Simulink model that reads the output o ...

Read more

A Slice of Raspberry Pi

Adding an Envelope Detector to convert an RF input to a DC output I connected the ADC Pi module to the GPIO header and stacked the DDS module on top. PCB support spacers were used to hold the modules together and to take the strain off the GPIO pins. All that was left to do was to use a simple envelope detector to convert the RF coming out on the circuit under test into a DC voltage that could be measured b ...

Read more

© 2015 Powered By Engineering Projects Team, Raspberry Pi Projects

Scroll to top