Advice on creating a safe monitor
hi all! i'm new arduino, not new embedded systems development. past 22 years i've been corporate software engineer manager of software engineers. before that, going around 30 years, embedded systems engineer developed custom firmware in c, assembler, , ladder. i've dabbled in electronics hobby life, , passion has been low-level stuff, formal education , training , of career has been on corporate software development side. anyway, establish bonafides on development side... as arduino , modern turnkey microcontrollers, i'm newbie. i've got project idea in mind , wanted run of experts guidance. there exists devices, this one , designed monitor safes report remote server on regular basis things door openings, temperature, humidity, motion, vibration, internet connection, etc. can set thresholds on server generate alerts via sms or email. while $200 isn't extraordinarily expensive, compared cost of safe , contents, thought fun project replicate , possibly i...