Ideas of delabs Technologies

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.

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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

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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.

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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.

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Just like an electronic circuit is a graphical representation of what will be on the PCB. Firmware development should be a 2D graphical diagram of what goes into eeprom.

An example is the Ladder Logic software that can program 80C51 types in a Fanuc, Allen Bradley or Siemens PLCs. Then many people can do at least restricted firmware programming for some embedded solutions.

Build a DMM or digital multi meter

Visual Embedded RAD. This is more like code snippets inserted in code in the background when user drags and drops a Hardware Function or Program Method. The Environment is Visual, but Code is compact as same modules or blocks used. There is no C or Intermediate Language. Visual to Binary Hex Direct.

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