Off grid weather station powered by Raspberry Pi

Raspberry is great board for building internet of things stuff. It is powerful and low power to be used with small solar panel anywhere in the field. PiJuice have been working on great solar powered weather station project. It is basically a fusion of two great projects – PiJuice which takes care of solar power management and AirPi, which carries tons of sensors. The problem he run in to was the sensor board, which connects directly to Pi header, but for outside use it is better to keep electronics sealed. So he build his own version of sensor board based on same AirPi. He used Raspberry Pi A+ for its low power consumption and for remote connection hes chosen EFCom Pro GPRS/GSM module which can send text directly to cell phone. Since most of sensors hace analog interface he used MCP3008 ADC converter which can take up to 8 analog sensors. So far there are only three sensors used – LDR, gas sensor (TGS2600) and LM35 temperature sensor. SO the list can be expanded later. Raspberry Pi communicates with GSM… Continue reading

Raspberry Pi weather station with TFT display

Raspberry Pi is a great tool for extracting data from the internet. Jacobean has built a weather station where Raspberry Pi pulls data from and displays it on Adafruit 2.8” touchscreen TFT display also known as PiTFT. Python already has a great module which allows to pull data from several weather services on-line. Weather display shows current day temperature, barometric pressure, humidity and other information. Also it displays information for several next days. Small graphical icon makes it look more live. Continue reading

Long range data transmitter using walkie-talkies

Roel has been implementing a remote weather station and stuck with the range problem. Standard weather station transmitter (433.92MHz) didn’t have enough power to transmit data far enough. So instead of struggling with better antennas what probably wouldn’t help much he decided to extend the range using low cost walkie-talkies that range can reach couple or more kilometers. Walkie-talkies are designed to transmit sound. So in order to send data packet radio protocol is needed. The easiest was to implement AFSK (audio frequency-shift keying) modulation of AX.25 packet radio frames. So first of all weather station sends its data using 433.92MHz. It is received using RF module connected to Atmega88. Then AVR microcontroller forms AFSK beeps out pf received data from weather station transmitter. In other end another walkie-talkie is connected to Linux machine modem input where software decodes AFSK beeps and plots nice gnuplot graphs. Continue reading

A meteorologically triggered color changing ball using an arduino

Subtle changes meteorological conditions like temperature, humidity and precipitation can hardly be noticed by just feeling the surroundings. One can’t immediately sense the hotness of the weather by viewing digital displays. The weather beacon serves as an intuitive solution to this dilemma, combining three metrological parameters and displaying them as a single color which not only gives more feel to the weather but also adds attractiveness to ones backyard weather station. Its creator calls it the WeatherBeacon, it’s not the first of its kind as a weather indicator but instead of using numerical displays it uses colors to indicate weather conditions. It wirelessly receives RGB data from a backyard weather station through Xbee. An arduino microcontroller then pumps these data into a LED array giving the ball different colors depending on the current weather conditions. The WeatherBeacon’s display is updated once every minute with fresh RGB data from the WeatherBeaconHub which also provides diagnostic and test information to the WeatherBeacon. Continue reading

WiNet – It Makes Things Becoming Easier!

Have this ever came across your mind, that you might want to put together a remote weather station in the bedroom? Ok, I know you’re wondering, “What the heck are you talking about? Why do I need a remote weather station here?” Well, seriously, no everyone needs the remote weather station, except you’re very fascinate with the changing of weather! In this case, the WiNet is the best choice for controlling your weather station. For your information, WiNet is a well-built device, which is comes with an Arduino and Xbee shield for the base station. It enables you to connect to your computer and remote your computer wirelessly! Beside that, it equipped with a TouchShield Slide, DoubleTall ExtenderSheild and MeCap Backpack features, which made the wireless control becoming even smoother. By using the WiNet, you’re able to talks to the PC from up to 200 feet through walls. Honestly, it’s totally a great option for wireless sensor logging and remote user input. Normally, it’s pretty hassle to connect the Xbees to talk to each other, but you won’t have this… Continue reading

DIY Your Own Weather Station!

Do you have the interest to become an amateur meteorologist? Or, do you think that it’s impossible for you to be a meteorologist, since you didn’t have the basic knowledge about meteorologist? Believe it or not, you don’t need to have the acquire knowledge for eligible yourself as an amateur meteorologist! All you need to do here is to construct your weather station inside a weatherproof box. Have a closer look on the above weather station. This project is based on PIC18F452 that running at 4 MHz. It can displays auto-memory in all high and low values without any problem. The reason why you should develop a weather station by your own, because it can be used to record: Pressure reading, Relative humidity, Indoor and outdoor temperature display (Either in Celsius or Fahrenheit), Mbar/hPa or mm Hg! Beside that, it also included with calendar and clock, easy 3-button user-menu, 42 hour-history display and power saving sleep mode. The best part about this weather station is it only turned on, when you’re really needed. Hence, you don’t need to waste many… Continue reading