The basic idea of this project is to convert a $3-4 solar light found at Lowes and Home Depot hardware store (here in the US) into a wireless remote sensor node. The node will utilize an MSP430G2553 MCU and a nRF24L01+(w/ spirilis library) wireless module to send light intensity (photoresitor that came with solar driveway …
Solar Driveway Light to MSP430 Wireless Sensor Node Continue Reading
![A simple analog proximity sensor with digital interface (for Raspberry Pi) last update Feb 7, 2014]](https://projects-raspberry.com/wp-content/uploads/2015/04/A-simple-analog-proximity-sensor-with-digital-interface-for-Raspberry-Pi-last-update-Feb-7-2014.jpg)
Raspberry Pi has a Broadcom BCM2835 chip, which controls 26 GPIO (general purpose input/output) pins. There are C library or RPi.GPIO python package available online that can be used to control the pins. The RPi.GPIO package is by default included in most Raspberry Pi system, such as Raspbian, a RPi version of Debian linux system. One …
Contents Manifesto The Board The Geiger Tube Types of radiation Supported Geiger Tubes Testing Sources Actuators From CPM to Sieverts Source Code Schematic Participate Buy Links and Documentation NOTE: All the code examples in this tutorial use the arduPi library. You can see the documentation and download the library here. Manifesto The main finality of …
Geiger Counter – Radiation Sensor Board for Raspberry Pi tutorial Continue Reading
Agriculture consumes between 80 – 90% of all freshwater in the United States. An easy way to conserve water in the agricultural sector is to install a soil moisture sensor. Soil moisture sensors measure the amount of water in the soil to maintain consistent and ideal soil conditions for plants. In some cases, installing a …
The TSL2584TSV is a very-high sensitivity light-to-digital converter that transforms light intensity into a digital signal output with a fast-mode I²C interface. The device combines one broadband photodiode (visible plus infrared), one infrared-responding photodiode, and a photopic infrared-blocking filter on a single CMOS integrated circuit. Two integrating analog to Digital Converters (ADCs) convert the photodiode …
UDOO Neo embodies a new concept: a single board computer suitable for the Post-PC era: Like a Raspberry Pi, you can program it in any language and run a full Linux environment with graphic interfaces. You get all the simplicity of an Arduino-compatible board, thanks to the Cortex-M4 and the Arduino UNO pinout layout, with the possibility of …
UDOO Neo = Raspberry Pi + Arduino + Wi-Fi + BT 4.0 + Sensors Continue Reading
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. …
Make An Auto-Locking Office Door with Smartphone Proximity Sensor Continue Reading
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 …
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 …
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 Continue Reading
