“no last activity” and no variables

I am doing a project: IoT based heart monitoring using ECG , the code is running but there is no data on My Device on the Ubidots application

Hello @aaronechosit ,

What device and what protocol are you using to send data to Ubidots? Are you using one of our libraries? Also, what frequency is your device sending data to Ubidots?

Finally, what does the payload that you are sending look like?

Best regards,
Sebastián

which hardaware did u used