I want my weatherstation to be connected wirelessly to internet to fetch weather data, time info, symbols etc. One of the cheapest option these days is to use a ESP8266. Originally I planned to use it only as a serial wifi device for Arduino. Moving small abouts of (structured) data such as forecast, time etc. from ESP8266 to Arduino is easy. But what about images? It seems to be easy to download images using ESP8266, such as Daniel Eichhorn have done in his ESP8266 Weather Station Color. But how to transfer images from 8622 to the Arduino? Common external flash or SDcard ? Serial ? I really don’t know. So, what if I can use the ESP8266 for everything and just ditch the Arduino? After all, the ESP8266 is a capable processor.
Continue reading ESP8266/NodeMCU with FT81x based 7″ display
ESP8266 brought an inexpensive way to include Wifi in small DIY projects. Later SeeedStudio has released Linkit Smart 7688/7681 based on MediaTek chips.The MediaTek LinkIt Smart 7688 development platform consists of a Linux Wi-Fi SOC with the OpenWrt Linux distribution. Scargill’s Tech Blog has taken a look. Always good to have a few alternatives. The basic module starts at $5.
Also take a look at the MediaTek 7866 Developers Guide
The ESP8266 wifi modules are now coming in various versions, almost faster that anyone manages to update. Scargill’s Tech blog seems to be constantly (as of jan 2015) investigating and commenting the ESP8266 and ESP-x modules. Take a look in his ESP8266category.
The www.esp8266.com forum is, of course, still a good source of information.
I just read about DFRobots WiDo, an Arduino compatible WIFI IoT Node based on ATmega32u4 and WG1300. Price is $30. Maybe one of the easier ways into wifi on arduino, at an acceptable price.
Instructables has instructions by noelportugal that uses the ESP8266 and Arduino to update a remote server (https://thingspeak.com/) using a digital temperature sensor. Thanks to my friend Anders for making me aware of this one.
I expect to see tons of ESP8266 examples in the following weeks.
More news on the ESP8266. A SDK is now available, read more in this Hackaday article. This might turn the ESP8266 into something more than just a UART to WiFi module. Maybe this cheap thing can act as the main processor in my weatherstation as well as wifi module ?
People have started using the ESP8266 wifi module. Such as this arduino based ESP8266 weather display found at zeflo.com. I have not tested it, but maybe it’s time to buy a sample…
Just found this one. An arduino that includes the CC3000 for wireless internet connection.
I’ve started playing around with a ethernet shield. Seems to be quite easy just using the standard arduino libraries.
I want to fetch some data from the weather APIs and present the result in readable form on the display.