{"id":706,"date":"2015-05-09T21:09:00","date_gmt":"2015-05-09T21:09:00","guid":{"rendered":"http:\/\/interactingobjects.com\/?p=706"},"modified":"2015-05-09T21:16:03","modified_gmt":"2015-05-09T21:16:03","slug":"from-wifridge-to-weiofridge","status":"publish","type":"post","link":"https:\/\/interactingobjects.com\/?p=706","title":{"rendered":"From WiFridge to WeIOFridge"},"content":{"rendered":"

Now that I have my WeIO, I thought I could try to “migrate” my WiFridge (which already worked on an Arduino UNO\u00a0+\u00a0WiFly board<\/a>\u00a0and an Arduino UNO + Adafruit’s CC3000 shield<\/a>)<\/p>\n

I tried to use a WiDo <\/a>from DFRobots but it it based on an Arduino Leonardo and the bootloader being larger than for an Adruino Uno, I can’t get my program to fit in memory ! I’ll try a bit later to either get my code lighter or remove the bootloader and program the chip directly.<\/p>\n

So for now, I’ll just try to leverage WeIO power to get a new version of my WiFridge : the WeIOFridge !<\/p>\n

I had first to connect 2 DS18B20 which are going into the fridge and freezer. But there is no direct support for it so I used a workaround described here<\/a> : use the UART to “simulate” 1-wire protocol. At the time of writing, a new version of WeIO software should be out in a few days which is including all necessary librairies and a little helper to simplify the use of DS18B20 on UART port.<\/p>\n

Then, I tried to connect a DHT22 for kitchen temperature and humidity… and got some troubles. But thanks to the help of WeIO team (see posts here<\/a>\u00a0and here<\/a>), we finally managed to get it working. As for DS18B20, update for this will be included in next WeIO software which should be out soon.<\/p>\n

And after a bit of coding<\/p>\n