Next to the ESP chip are three pins clearly marked TXD, RXD, GND. So I took it apart and there you go, a ESP-WROOM-2 chip laid right in front of my eyes. That immediately caught my attention as that’s the default IP address in AP mode for ESP8266.
![wifi weather display wifi weather display](https://i.pinimg.com/736x/00/99/fd/0099fd4d398a17014ddc24f2f5036435.jpg)
Wifi weather display manual#
I was reading its user manual and came across this part: open a browser and type in IP address 192.168.4.1. What’s interesting now is that this particular PWS has a receiver unit that is WiFi-capable, and it can even send data to Weather Underground. However, technology has changed rapidly the past few years. I was definitely not looking forward to repeat the same tedious experiments I’ve done a few years ago. This time I am dealing with a even more sophisticated PWS which combines several different sensors, so the RF signals contain a lot more values that will be very difficult to reverse engineer. That was a lot of fun, but honestly very painful and tedious, as I had to simulate the changes of weather conditions many times to create variations in readings, and figuring out how they are correlated with the raw signals is not always trivial. By correlating the binary values of each RF signal with its corresponding reference value, I was able to figure out the encoding pattern. The basic technique is to use a RF sniffing circuit to capture the signals, then patiently take many RF readings and compare them with the reference readings displayed on the received unit.
![wifi weather display wifi weather display](https://baldr.com/u_file/2003/products/11/212fe1b03c.jpg)
Wifi weather display series#
A few years ago I wrote a series of blog posts about how I reverse engineered some of the individual wireless sensors, like temperature, humidity, rain, and soil sensors, so that I could decode and use them in my own project. Almost all of them use 433MHz Radio Frequency (RF) signal to transmit data from the outdoor sensors to the indoor receiver (with integrated LCD display). If you search for “personal weather station” you will find plenty of off-the-shelf products manufactured by various companies. Wind speed accuracy: 2 m/s ~ 10 m/s (+/- 3 m/s), 10 m/s ~ 56 m/s (+/- 10%)ġ6.Recently I was involved in a project that requires reading data from a personal weather station (PWS) installed at a friend’s backyard. Humidity range: 10% to 99% (1% resolution)Ħ.Barometric pressure range: 300 to 1100hpa,ġ) Resolution : 0.3mm (if rain volume 1000mm)ĩ. Outdoor temperature range: -40℃ to + 60℃Ĥ. Upload weather data to or Specifications:ġ. Rainfall data (inch or mm): 1 hour, 24 hours, week, month, and totalġ2. Wireless outdoor temperature and humidityġ1. Access the app from your computer, tablet or smartphone and enjoy the same user experience across all devices.Ģ. Weathercloud makes managing your device not only easy, but fun. Send real time data to WeatherCloud Website. All of the data can be viewed and analyzed through any computer web browser.
Wifi weather display android#
Other apps include Weather Underground for iPhone and Android, and WunderMap for IPhone, Android and iPad. The WunderStation iPad app brings real-time data from over 37,000 personal weather stations that make up our unique network of weather enthusiasts. There is never a service fee, and once you begin reporting to Wunderground, you receive Data Hosting Services and Member Benefits, including Email alerts and no ads. Wunderground allows you to view, store, analyze, share and compare data from local personal weather stations with beautiful, customizable charts and graphics. Besides view weather information on the console at a glance, this Internet weather station allows you upload data to Wunderground server.