Prototyping is a personal affair, with approaches ranging from dead-bug parts on tinplate through stripboard and protoboard, ...

Hardware-wise, there is an Arduino Nano Every in charge of the LDR module that reads the flashlight input and the 12 V relay that unlocks the door. Be sure to check it out it the video after the ...

However, while the Uno is a helpful board for your beginner projects, it still has its limitations, so you can't just use it for every one of the Arduino ... connector on the Micro. Like the Nano ...