I insalled Espruino 1.94 on the RuuviTag and try to use the Puck.js as presented in the tutorials to send commands and receive data.
While I manage to successfully connect to the RuuviTag and I can send the commands using the Puck.eval command - successfully, as I see the result printed on the IDE console - I never receive that data back.
All I get is a JSON error, because null is returned.
So my questions is, how can I receive any data (e.g. a variable with environmental data stored) over Web Bluetooth? My console remains empty, when successfully sending commands.
My goal is to setup ruuvi data collection similar to projects presented on the ruuvi page, but I would like to avoid an additional device such as a Raspberry Pi. Just walk up with you mobile phone, access a website with the display code and display the (collected) data.
Can you advice me how to proceed?