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bitbank2 / Thermal_Printer

Arduino library to draw text and graphics on BLE thermal printers
Apache License 2.0
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Found a Printer, but Connecting Failed #1

Closed GregS1000RR closed 4 years ago

GregS1000RR commented 4 years ago

Hi,

I tried to use your library with a similar printer (PeriPage) from same GOOJPRT brand on ESP32.

After changing the searched device name string, I was able to make ESP32 find the Printer, but when trying to connect it failed

Any ideas ? Greg

Win10-1909 Arduino : 1.8.12 ESP32 Core : 1.0.4

Result :

`Preparing image buffer... Scanning for BLE printer Scan Result: Name: PeriPage_2FDB_BLE, Address: c0:15:83:1b:2f:db, manufacturer data: 0000c015831b2fdb, serviceUUID: 0000fee7-0000-1000-8000-00805f9b34fb A match! c0:15:83:1b:2f:db PeriPage_2FDB_BLE Found Device :-) Found a printer!, connecting...

bitbank2 commented 4 years ago

I've seen strange connection failures lately with my Nano33 BLE, but not the ESP32. I'm not sure why it's happening. Have you tried it from different ESP32 devices? My only idea would be to install an older version of the ESP32 support and see if they recently broke something in the bluetooth stack.