I am building a unit that pulls the temperature data from 60 sensors and needs to send it one way or another to a central node eventually to be sent to an online database.
I was thinking that rather than chew up power I would record the sensor data over say 5 minutes then store it on the SPI Flash. every 5 minutes the commmunications routine would kick in and send the data to the core system.
Having not used SPI Flash I am wondering that the write cycles are? Given that each time I collect the data (every 30 seconds) it consumes about 500 bytes. Breaking that down over how many writes in a year is going to be quite high so wondering if i shouild not instead add a CF device rather than relying on the SPI Flash.
Any sugestions for this?