1º) I think it is a great choice for a rpi zero W (with WIFI), by adding to it a 3G dongle in order to send CSV data to the cloud
2º) it has 3 analog and 2 digital ports… it should have the opposite, since most of grovepi accesories are digital rather than analog!!!
3º) the serial port should go for the RTC sensor as a must to I guess, is that serial port like L2C?
many websites are running out of this product… which web do you recommend for Europe?
Thanks in advance