Graphing Mqtt with RA8875 Screen a TFT grapphing ino for arduino connected to esp or wifi arduino, wemos d3 the esp will listen to the topic and transmit the data to arduino to be processed into a visual image on RA8875, you can create graphs vertical and horizontal bars meter rings and pie charts based on the RA8875 driver by sumotoy https://github.com/sumotoy/RA8875
image of the graph displayed
autoconnect... ino ---is the esp wifi connect and sub to mqtt topics to be passed to the arduino ( handles 20 mqtt inputs) lCD_sSerial_read. ino --- is just a base example of the serail read command on the arduino fron esp LCD_Serial_read_graph.ino--- is the graphing sketch for the arduino connected to the RA8875 just adjust serial port to match yours and adjust to graphing to match what you want.. it can handle up to 20 different inputs from the esp
Touch screen and the weather interface is based on esp weather station, but I had to turn off some debuging info in the wundercastforcast.h if you wish to use it on this screen you either can use the supplied "**forcast.h" or edit your copy by commentting out the serial print lines with in it there 6 different touch screen pages to add additional radial meters.. they are cureently coloured just for easier distinction, each screen butto is located where meter should be ..
openwrtWUmqtt.tar.gz are files for openwrt router to run as a service to download WU statistics and broadcast them via MQTT so one call to WU network can update many devices connected to an openwrt router
if doing multiple MQTT subscribes - it only support 7 tipic. but if you wish many more then 7 just divide them into categoried ie subscribe topic energy/# sensor/# switch/#
then use place the the name of the topic group/item in the inString energy/grid energy/solar sensor/garage sensor/28ff48a470165ae switch/sw1 switch/sw2 ....etc