Add submission # 6778

#6778

Author: ArduinoBot

registry.txt

@@ -8275,3 +8275,4 @@ https://github.com/kodediy/kode_MAX31329.git|Contributed|kode_MAX31329
 https://github.com/gavinlyonsrepo/display16_LTSM.git|Contributed|display16_LTSM
 https://github.com/gavinlyonsrepo/ST7735_LTSM.git|Contributed|ST7735_LTSM
 https://github.com/DigitalCodesign/MentorBit-CANBus.git|Contributed|MentorBit-CANBus
+https://github.com/Pallob-Gain/packet_device.git|Contributed|Packet_Device