Hi everyone,

I’m working on a setup where a Zebra TC57HO device sends a print job via Bluetooth, and instead of going directly to a ZQ521 printer, I want it to first connect to a Raspberry Pi.

The idea is:

• TC57HO sends print job (ZPL or CPCL) over Bluetooth
• Raspberry Pi receives the data (SPP or similar), stores a local copy
• Then forwards it immediately to a paired ZQ521 printer over Bluetooth
• If Wi-Fi is available, it also syncs the job to the cloud (Firestore)

Has anyone successfully used the Pi as a Bluetooth relay in this way?
Is it possible to pair the TC57HO with a Pi that emulates a Bluetooth serial port profile and capture the job?

Would really appreciate any guidance or past examples. Thanks!

—
Mahmood