Overview The Hacker School space for our batch had two restrooms: one attached to the main work area, and one downstairs. We thought it would nice to know if the bathroom is occupied before taking the time to walk down. Our project makes it possible to check the bathroom status by phone or text message. …
Voice– and SMS–Enabled Light Sensor Using Raspberry Pi and Twilio Continue Reading
Typically as a programmer you will work with data on disk, and if you are lucky you will draw pictures on the screen. This is in contrast to physical computing which allows you as a programmer to work with data sensed in from the real world and to control devices that move in the real …
Abstract Directly connect a Lego Mindstorms NXT Ultrasonic Sensor to a Raspberry Pi. A TCA9517 I2C bus buffer and an additional GPIO pin for SCL is necessary. A short C++ program to read the measured distance is provided. Introduction Raspberry Pi (Pi), despite some shortcomings, is definitely my favorite SBC. By far the biggest community …
How to connect a Lego Mindstorms NXT Ultrasonic Sensor to the Raspberry Pi Continue Reading
IOT or Internet of Things is a hot topic! According to the experts everything will be connected to the internet and all our devices and their data will soon be just an IP address away from us. So where do you start if you want to explore the world of IOT? How about a simple …
Build Your First IOT with a Raspberry Pi, DHT11 sensor, and Thingspeak. Continue Reading
This instructable will teach you how to install an Aeroponics system that is controlled by Raspberry Pi. Aeroponics is plant-cultivation technique that has the roots hanging and is suspended in the air. Nutrient solution is sent to them in form of a fine mist. Aeroponics is compatible with any type of planting and can be …
Aeroponics with Raspberry Pi and humidity sensor Continue Reading
E-Book description: The world of microcontrollers and increasingly capable and popular small computing platforms is enabling many more people to learn, experience, and complete projects that would previously have required dedicated (and expensive) hardware. Rather than purchase a commercial or made-for-consumers kit, enterprising developers can now build their own solutions to meet their needs. Sensor …
Beginning Sensor Networks with Arduino and Raspberry Pi [EPUB] -E-book Continue Reading
Since my previous post I have added a couple additional temperature sensors to my piHouse project. One is an outdoor temperature sensor that I previously programmed but never installed outside, and the other is a new sensor in my bedroom. This involved some hardware planning and effort installing because I had to run a cable …
Honeywell Sensing and Control has designed a position sensor IC which combines the sensitivity of an anisotropic magnetoresistive (AMR) sensor with the low power operation of a Reed switch. The range of magnetoresistive sensor ICs is called Nanopower reflecting a typical power consumption of 360nA. This is a ten-fold reduction in power consumption on previous …
Honeywell changes magnetic sensor design, forever Continue Reading
sudo modprobe w1-gpio sudo modprobe w1-therm cd /sys/bus/w1/devices ls cd 28-xxxx (change this to match what serial number pops up) cat w1_slave The interface is a little unreliable, but fortunately it tells us if there is a valid temperature to read. It’s like a file, so all we have to do is read The response …
Time to take your electric meds. Sensors could come embedded in the pills in your next prescription, watching whether you take your medication on time and tracking your body’s response to the drugs. The tiny sensors, which are ingested and pass harmlessly through the body, are part of the Helius system, developed by Proteus Digital …
Smart sensor pill reports back on medicine taken Continue Reading
