Geiger Counter - Radiation Sensor Board for Arduino
Contents Go to IndexManifesto The main finality of the Radiation Sensor Board for Arduino is to help people in Japan to measure the levels of radiation in their everyday life after the unfortunate earthquake and tsunami struck Japan in March 2011 and cause the nuclear radiation leakages in Fukushima. We want to give the chance to measure by themselves this levels instead of trusting in the general advises which are being broadcasted. The usage of this sensor board along with the affordable and easy to use Arduino platform helps people to get radiation values from specific places.
NRF24L01-2.4GHz-HowTo
Having two or more Arduinos be able to communicate with each other wirelessly over a distance opens lots of possibilities:Remote sensors for temperature, pressure, alarms, much moreRobot control and monitoring from 50 feet to 2000 feet distancesRemote control and monitoring of nearby or neighborhood buildingsAutonomous vehicles of all kinds These are a series of 2.4 GHz Radio modules that are all based on the Nordic Semiconductor nRF24L01+ chip. (Details) The Nordic nRF24L01+ integrates a complete 2.4GHz RF transceiver, RF synthesizer, and baseband logic including the Enhanced ShockBurst™ hardware protocol accelerator supporting a high-speed SPI interface for the application controller. The low-power short-range (200 feet or so)Transceiver is available on a board with Arduino interface and built-in Antenna for less than $3! See it here. NOTE! Power Problems:
cours électricité
LTspice est un logiciel professionnel de simulation des circuits électroniques analogiques, développé par le fabricant de circuits intégrés Linear Technology. LTspice est un logiciel propriétaire mais il est totalement gratuit, et en version illimitée ! LTspice fonctionne sous Windows, et sous Linux avec l'émulateur Wine. Pour télécharger le logiciel LTspice 1) Saisie du schéma : 2) Résultat de la simulation : La simulation donne : I1 = 5,042 02 mA I2 = 7,563 03 mA I3 = 12,605 mA V1 = 1,663 87 V ce qui est parfaitement en accord avec les valeurs théoriques.
Windmeter / Anemometer by Infidigm
Overview The Windmeter is an anemometer designed to measure and record wind speed distribution from 0 to 17+ meters per second. It was designed for high reliability, ease of construction, and for a wide environmental range. Data is logged over a period of 30.46 days (1/12 of a year), and then saved for 11 months. The data can be retrieved with a laptop computer any time within the 12 months of logging.
Système Adafruit apprentissage
Introducing Bluefruit EZ-Link The ultimate serial Bluetooth link & wireless Arduino programmer We are excited to add another product to our growing Adafruit Bluefruit line, this time its the Bluefruit EZ-Link: the best Bluetooth Serial Link device ever made. Like you, we have purchased all sorts of Bluetooth serial link modules, with high expectations - we just wanted something that worked!
“Airduino” Scungy Anemometer Part 2: Digital Connections and Interrupts « Keith's Electronics Blog
In part 1 , I described making a propeller out of foil to measure the airflow of my air conditioning system, building an optointerruptor from an LED and a CdS photocell, and amplifying the signal to a usable level. Next, I needed to feed the signal into a digital input on the Arduino. Old-school digital inputs don’t like having analog signals fed into them; but I knew from working with a PIC that some of the Arduino/ATmega pins would probably have Schmitt-trigger inputs, which have hysteresis.
Tutoriels Arduino - Ethernet + SD
Whatsit? We just got the latest version of the Arduino Ethernet shield with a MicroSD card slot and I promised Bill Greiman I'd try out the latest version of his SdFatLib library so I decided to code up a simple Webified file browser. Its a quicky project and demonstrates what you can do, but it isn't 100% perfect so you should be ready to modify it if you'd like to do other stuff, 'K?
“Airduino” Scungy Anemometer Part 1: Detection and Amplification « Keith's Electronics Blog
Necessity is said to be the mother of invention, and 90+°F daily temperatures with the air conditioner on the fritz made me feel pretty inventive. Our air conditioner was low on refrigerant and the blower fan motor may be running slower than spec and not moving enough air. Between the two problems, the expansion coil inside the furnace housing would ice up, over a few hours completely blocking the airflow and preventing any meaningful heat exchange. I’d then have to switch off cooling mode and run only the fan for a few hours to melt the ice. On a weekend when I was home all day, I discovered that I could keep the house fairly cool by setting the blower fan to run all the time, manually monitoring the airflow out the vents, and cycling the AC off when airflow was restricted and back on when it opened up. Which sounded like a perfect job for a microcontroller.
Guilherme Martins : PAPERduino’s design
This is a fully functional version of the Arduino. We eliminated the PCB and use paper and cardboard as support and the result is.. the PAPERduino :D This is the the first version of the layout design, next we will try more designs, and another materials. You just need to print the top and the bottom layout, and glue them to any kind of support you want. We hope that you start making your own boards.
