If your product requires a phone app to work, you're ngmi or we hope ydmi. What's the guarantee your app is going to be around 5 years from now? Not to mention the friction of using the phone and delay in launching the app, bluetooth problems, power consumption, and tying up one hand to use the phone.
Put the fucking buttons on the device please.
Had dinner with my wife's parents and her dad gave me this letter opener he got at Holmdel back in 1979. The pattern represents magnetic bubble memory.
@eevblog@insta360@internetofshit And sometime in the future, for whatever reason, the app is not available.
So you end up with an expensive brick. This shit should be illegal
A Guide to Operational Amplifiers and Their Circuits: a downloadable eBook
This short book has been written to provide an introduction to the basics of operational amplifiers and a selection of useful easy-to-build circuits for anyone involved in using and designing operational amplifier circuits.
It's aimed at people wanting to understand the basics of op-amps, and it gives a good number of circuits with their design equations.
This 65 page eBook is aimed at providing an easy-to-use reference rather than a work that uses full and rigorous mathematical proofs.
The book contains several chapters: introduction and historical background; basic operational amplifier concepts; amplifier circuit configurations; filter circuits (low-pass, high-pass and band-pass); multivibrator and oscillator circuits; comparators and triggers; and differentiator and integrator circuits.
Buy it now: https://t.co/bJXlQxj5xT