Bill astatine Taste The Code has a alternatively modular store doorway opener with a 433 MHz remote. As this distant is “quite bulky and successful the way” helium doesn’t ever transportation it with him, and sometimes had to spell wrong and manually trigger it with the partition switch. Rather than enactment up with this archetypal satellite annoyance, helium alternatively came up with a mode to trigger the store doorway utilizing a smartphone oregon different device, with nary modification to the portion itself.
Conveniently, Bill’s store doorway opener features a alternatively hackable method of manual opening, arsenic it connects 2 terminals unneurotic via an outer button. To emulate a fastener press, helium utilized a relay module, which is connected to a NodeMCU dev committee for control. The NodeMCU, successful turn, connects to a smartphone oregon different instrumentality via a Reyax BLE module, which communicates with the NodeMCU via serial.
For an casual idiosyncratic interface interface, Bill acceptable up an app successful MIT App Inventor, with the BLE module’s code hard-coded. The strategy tin nexus to aggregate devices, and is enactment successful pairing mode via a fastener connected to the NodeMCU. This is an indispensable information feature, arsenic different 1 could theoretically locomotion by, brace with the store doorway opener, and get entree to the store with a reasonably trivial spot of hacking.
Code for the physique is found connected GitHub and fixed the NodeMCU’s WiFi capabilities, it would beryllium imaginable to grow this task to different power and/or location automation integrations. This benignant of elemental on/off fastener power is reasonably emblematic for store doorway openers, truthful a akin Bluetooth hack would beryllium applicable successful a assortment of situations.