Turn off light with Blynk after PIR detects motion

Need Help With My Project
6

Hi,

My post that you refer to is not applicable: it was a bug some time ago, and this was fixed.

When using bluetooth modules connected with softwareserial you can have errors in the communication between the Bluetooth module and the Arduino, but the Blynk protocol has difficulties handling missing bytes.
Some thing:

  • the optimal speed for the module us 38400. Lower you can have buffer overflow in the module. Higher will introduce communication errors when using SoftwareSerial
  • use a hardware serial port if possible (e.g. on Mega).
  • make sure the notification bit is set correctly on the module. This is for HM-10, I don´t remember if it is also on HC-05. See my post [SOLVED] Blynk and BLE using HM10 module (OK+CONN problem) - #4 by federicobusero
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