P2 Serial Differences?

[rickkas7]

Yes, the P2 USB serial is slower than nRF52 and STM32. Buffering the output can help in some cases.

More information in this post:

P2 USB Serial is very slow compared to Photon

We run the same code on P2 and Photon P2 is extremely slow takes 24-25 ms to run this code, while Photon takes 0 ms. Firmwares: Photon 1: 2.1.0 P2: 5.1.0 if we commend out: Serial.println(gps_coordinate, 7); // <-- Low stream speed Then P2 will also do it in 0 ms. SYSTEM_THREAD(ENABLED); //STARTUP(System.enableFeature(FEATURE_DISABLE_LISTENING_MODE)); STARTUP(WiFi.selectAntenna(ANT_INTERNAL)); SYSTEM_MODE(MANUAL); unsigned long last_check_wifi_ready_millis = 0; unsigned long boundaries_…