Call it Quotes or Ideas or Instructions, these are thoughts that came from me from the past tech experiences of over twenty years.
Technologies should scale with Infrastructure. Buildings cannot stress the Foundations meant for. Traffic proportional to Road Width. Sync. Software should not overwhelm or Overload Hardware.
Raw Materials - Components - Finished Products. The Entire Processing and Design Chain has to improve, if the final Product has to Shine.
This is the best Instrumentation OpAmp, Great CMRR, ensure supply has no ripple and keep analog and digital grounds separate. Ri can be replaced with a trimpot and resistor to alter gain. Connect a preset ends to pins 1 and 8 and preset wiper to VCC for Offset Null when high gains are configured.
Instrumentation Amp - Op-Amp Designs
The Input zeners and diodes form a protective clamp for all voltages above VCC-VDD. If supply is changed to +12 -12 change zeners to 12V zeners. Use similar Zeners at output to protect Output from being zapped by over-voltages or high energy - voltage or frequency transients. Add plastic capacitors across Rf for damping AC operation or ripple. Also avoid floating inputs by providing a bias, till you connect it to a sensor; or you will see electrometer like effects.
Scientific Expression or Formula Calculations. Twenty Transaction Memory and Tape, Different bases like Decimal and Octal, Logic Math, Functions, Constants. Screenshot above.
Deriving knowledge and inspiration from ostermiller.org. The GUI and Skin Modifications were done. This Scientific Calculator was ported with a new UI by delabs.
Live Gadget that you can Operate
It has Brackets to build your own math equation. Scientific Functions like Trigonometric, Hyperbolic, Logarithmic.Memory (cookies), A Paper Trail or Tape for Equation and Result History
Use a Servo Stabilizer or CVT Constant Voltage Transformer or at least an Isolation Transformer. The First Defense form HV Surges, Spikes.
High Voltage Polyester & Polypropylene Metallized Capacitors in Stepdown Supplies should be Fire Retardant & Self Healing with a MOV too.
EE Design Library - Electronic Product Design Resource
Tropicalized means immunity or resistance of an equipment in conditions of varied Temperature, RH, Insects, Fungus, Brine, small life form.
i had tough time filling a online form. Here are some points, many know already, but new ones need to be instructed again. Especially so in customer service online forms or apps.
Make all the fill up text boxes ample, not cramped. Message area needs to be wide and long. Not an excuse of a square, where you can only say "Hello". Do not insist on all details an Email is enough.
If the form has validation or capthca, may it have memory. The user need not fill everything all over again for one error. Make validation intelligent and after three submits, take what customer gives, even if it appears to be a riddle.
Most of us, even me when i made/sold products, do not like the "Return". This is not healthy, Customer support must be proactive, enthusiastic and like some say Fanatic. A brand survives and sells itself only on Genuine Customer Support. Just communication or Half-Hearted attention will not work for very long.