Blynk based IoT Smart Switch with physical button feedback status - YouTube
Sliding switch / on off like the ones used in blynk settings - Ideas - Blynk Community
GitHub - pkarun/Blynk-4-Channel-Relay-Status-Sync-with-Physical-Button: Blynk: 4 channel relay status sync with Blynk app, Relay and with Physical button/Switch/Push button. If you perform ON/OFF with Physical Switch/Push button switch it lets you ...
ESP8266 Bidirectional Bridge - Solved - Blynk Community