Creative Commons License NFC Door lock by Michael Dale Burton is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Impliments a door lock system using NFC reader and the Blynk app
Blynk is used to store the data on the cloud and provide
a smart phone interface for adding, removing and assigning cards
Device selector is used to choose the lock/door
in this version the card / nfc data is stored in the SPIFFS memory
20 cards are supported
unlimited slaved locks are supported 1 master is used as the scanner for adding cards it can also be used as a lock
you will need blynk tokens.
One for each lock.
You must have at least one. It will act as the master and the lock if it is the only one.
Nodemcu esp8266 and PN532 hardware is used
BLYNK pin map
V1 is a timer
V2 is a reset button
V3 ia a text input for the user name assigned to a card
V4 is a value display for the card id
V5 current card
V6 is a terminal window for debug information
V10 is the delete button
v11 is the copy button
v12 is the copy all button -- it may not be working
V24 is a value display for the number of valid cards
V25 , V26 are bridge data exchange