How can I group IO Feeds ? Answered
Hi Becky, I completed my project but ended up posting my question along with my photos in the 'Class Project' list - my bad. Anyway, here it is again in the correct place this time :-
I would like to convert my existing Arduino project, which is a
'Differential Thermostat', to work as an IoT device. It compares the
temperatures from two DS18B20 probes and switches on the relay & LED
if the temperature is a preset amount greater on channel 1. You can
see typical outputs on the 16 x 4 display ( sorry about the dotty
background ). Obviously I need to add the WiFi element and could use an Adafruit Feather Huzzah as my Arduino, but wonder if there is an ESP series device that I could add to a standard Arduino ? ( I only use the RoMeo BLE as it is quick to prototype with, but too expensive for most 'permanent' versions ). I am also struggling a little with passing two analogue values
to Adafruit IO as 'feeds'. I have found out how to define a group and
assign feeds to it, which looks like the way to go. However, I do not
know how to refer to these feeds programmatically in the Arduino IDE ( something like command->save(group.feedname) perhaps ? ).
Also, I cannot see how to manipulate the feeds on Adafruit IO. This may not be possible, but I wish to derive a 'Delta' value which is Temp1
- Temp2. So if I cannot do that, I will simply need a 3rd feed where
this is already calculated. I have already created a dashboard with 3
'gauges' to display the results. Any advice or pointers would be great !
( I got completely lost in the Adafruit IO API docs btw...)