Problem with fingerprint sensor and blynk

[Gunner]

You may want to consider moving the fingerprint sensor and code onto a seperate Arduino and then just sending a GO, NO GO signal to your Blynkified device via something like EasyTransfer?

Turning "Old" Arduinos into Perfectly Usable IoT Devices

Arduino UNO + LCD Shield + ACS712 I am finding a renewed interest in merging much of my existing “old” Arduino tech with Blynk into “new” IoT devices. Here are a couple of ye olde dustys that I am working on… I will update with code and details as I finalise them Firstly… my current, fully functional, but with tweeks-a-comin… Blynkified UNO controller for my Benchtop AC Power Monitor… I sometimes forget to run the USB script, so I added on the LCD shield and have the face change depending if…