Our latest experiment! The board you see to the right should be with us in a couple of weeks. This little number will sit on the back of a Nextion board, from the smallest to the largest without adding any height (hopefully) and contains as you see an ESP-12 and supporting components.
The extra connectors are just to give it a more general usefulness.
Having implemented software serial on GPIO4 and GPIO5, the board will allow for sending messages via MQTT directly to the Nextion while still allowing debugging and programming of the ESP using the normal ports.
Far better I think than strapping a Raspberry Pi onto the things. We’ve not tried to do anything too clever here so this all assumes the display is already programmed up.
My own use for this is a couple of simple wall units to show and control heating and lighting… I already have a display hooked up to a Raspberry Pi for general control but it’s a tad excessive having those plastered all over the house hence this board which we’ve had made as thin as possible.
Can’t tell you much more until we get the boards back and give them a go.
Currently ending my first week of a 2 week contract (well for now anyway) over in Spain so my ability to experiment is severely hampered as you might expect (but that is compensated for by sunshine).
By the time I get back to the UK I’ll have some more Sonoffs to play with (hopefully the later types with one of the LEDS attached to GPIO13 on the ESP8266) and some new ESP-related stuff to review. My new workshop is up – just needs electricity, insulation, desks, shelves – no problem really!