Serial Device Output - "Did Not Send Bytes" Message¶

Summary¶

A flashing line saying something like "did not send 352 bytes" was traced to leftover real-time data output / serial output settings from Unreal or data-output testing. The fix was to disable the unused output in Serial Device Setup.

Symptoms¶

Repeating or flashing output message.
Text includes "did not send" and a byte count.
Often appears after testing Unreal, FreeD, serial output, or another data-output workflow.

Evidence¶

Timestamp	User	Media	Evidence
2020-11-24 21:40	Peter Constan-Tatos	▶ 00002312-VIDEO-2020-11-24-21-40-06.mp4	Visible text / video message: flashing line similar to did not send 352 bytes. Asked what the flashing did not send ... bytes line meant.

[24/11/2020, 9:41:29 pm] ~ Tran Quang Duy

Media Text / Description¶

Media 1: 2020-11-24 21:40 - Peter Constan-Tatos: ▶. Visible text / video message: flashing line similar to did not send 352 bytes. Asked what the flashing did not send ... bytes line meant.
Media 2: [24/11/2020, 9:41:29 pm] ~ Tran Quang Duy

WhatsApp Excerpts¶

Media Text / Description¶

did not send 352 bytes
did not send ... bytes
Image/video description: flashing serial/data output warning line after Unreal, FreeD, or other real-time data-output testing.

[24/11/2020, 9:40:06 pm] ~ Peter Constan-Tatos: Anyone know what this means? The flashing line “did not send 352 bytes,.....” ?

[24/11/2020, 9:41:15 pm] ~ Tran Quang Duy: You can check in set up - serial device set up and disable data output

[24/11/2020, 9:41:29 pm] ~ Tran Quang Duy:

[24/11/2020, 9:44:01 pm] ~ Peter Constan-Tatos: Aha yes thanks Tran. Left over setting from playing with unreal engine 🙄

[24/11/2020, 9:45:18 pm] ~ Tran Quang Duy: Hehe. Playing around with UE is fun