Read the statement by Michael Teeuw here.
MagicMirror and adruino over ethernet
-
@Kereknjek So in a nutshell. Yes the Arduino can serve a whole webpage of data , but it will take a long time. If one just sends the data from the Arduino to the Raspberry Pi then the Raspberry Pi can display the webpage faster as its processor and potentially memory is faster.
-
Yes. Plus, if I would want to make any modifications to webpage, first I would have to shutdown arduino and whole solar system, pull sd card out, modify page, plug sd card back in and restart sytem.
If sd card gets damaged in any way or get slow for some reason (had one like that on my 3D printer), whole system running on that arduino gets slow and unuseable.
-
@Kereknjek cool. You could make a little change and have it return just data.
If the path is sensor1, send just sensor1’s data. Etc.
Pretty easy, just a case stmt… you could make it json data pretty easy too…
The request could ask for a sensor or block of sensors, and send raw data.
-
On my Arduino measuring water flow and water volume. I did those in interrupt and timer routines. And sent data in the main path.
-
@Kereknjek Sounds like you need to backup the entire SD Card of your Arduino and create an image for safe keeping. If you Download Win32 Disk Imager you can create an image of the entire SD card and write it to a hard drive. Then if catastrophe strikes simply remove the SD card and use Win 32 Disk Imager to write the working image back to the SD card.
It can be downloaded here Win32DiskImager
-
@BD0G my 8266 has onboard flash ram. No SD card required.
-
@sdetweil Was referring to @Kereknjek and recommending he backup the SD card on the Arduino that is working for safe keeping.
I have an 8266 as well ! Its dedicated to my smartblinds control that I control via smarthings and a custom 3 D printed enclosure for a servo that mounts in the top rail of the blinds. Works splendidly!
-
@BD0G I agree, backup is an important strategy. I found out the other day SD cards have a limited life, determined by number of writes…
-
@sdetweil said in MagicMirror and adruino over ethernet:
@Kereknjek cool. You could make a little change and have it return just data.
If the path is sensor1, send just sensor1’s data. Etc.
Pretty easy, just a case stmt… you could make it json data pretty easy too…
The request could ask for a sensor or block of sensors, and send raw data.
Yes! That is what i’m looking for.
But discussion went to arduino side.
My problem is that I don’t know how to do it at magic mirror side. -
@Kereknjek ok. More later. Grandson on site!
