Code to arduino Mega, xbee and Nextion - 02/05/2018 00:35 EDT

Code arduino, xbee and NEXTION Need somebody that have deep knowledge of arduino code, xbee Wi-Fi system and screens NEXTION. Scope: Develop a code , based in basic code that I’ll supply, using mega 2560, to prepar a payload to get: - in the TX system: - temperature from 4 sensors ( using ic max 31856) ,from –200C to 1200 C ( until 1000C with one place decimal) - ambient temperature from the 4 sensors ( is a automatic process for each max 31856..in the same time they get external and internal ( ambient) temperature) - humidity from dh22 - get data(csv) in a SD card ( with a rtc built) -number of sensor - voltage of battery - signal strength from xbee TX system will be able to receive inputs from RX trough xbee ( in the RX system there is a NEXTION lcd to make the inputs) to: - set alarm to over and low to 4 temperatures ( using outputs of arduino TX not only in the screen) - adjust time - kind of thermocouple in use ( four types : k, t, j,n) - change to C to F degrees - start or stop sending data to SD card - adjust the interval to send data to SD card ( 4 s to 24 h) in the rx system a nextion lcd will be able to - show the four external temperatures - show the battery state (graphic) - show the signal strenght ( graphic) - show the ambiente temperature ( just for one sensor..would be graphic) - show time( hour/min/sec) - make all inputs in TX system describe above - a ticket to sleep lcd - the configuration of xbee ( RX and TX ) need to be supplied. OBS: I’m already developing a system using NEXTION for the similar project, then maybe I’ll supply the design of the screens ( with pictures, buttons, etc..etc..)