Dear Reader
Task:
temperature and humidity readings should be time stamped and recorded locally, then sent to a server where the data is visualised and provided to internet browsers.
The thermometer and hygrometer is a WS-9400.
Plan:
sniff data (temp. & hum.) sent to the LCD screen, send them to a raspberry pi, which locally records the data on its SD card and uploads them to a server.
Questions:
1) how can the signals to the LCD screen be sniffed? Would you use tools such as the bus-pirate?
2) most probably the signals have to be amplified. How can this be done?
Thank you very much for your help!
Task:
temperature and humidity readings should be time stamped and recorded locally, then sent to a server where the data is visualised and provided to internet browsers.
The thermometer and hygrometer is a WS-9400.
Plan:
sniff data (temp. & hum.) sent to the LCD screen, send them to a raspberry pi, which locally records the data on its SD card and uploads them to a server.
Questions:
1) how can the signals to the LCD screen be sniffed? Would you use tools such as the bus-pirate?
2) most probably the signals have to be amplified. How can this be done?
Thank you very much for your help!