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Thursday, September 12, 2019

USB or Ethernet Processing Boost

A software and External Hardware, Interfacing on LAN or USB or even WiGig when it comes. The hardware contains HDD/Flash, RAM and RAW Processing power. This is not like Hyper Threading or multi-core cpu, but addresses same issue.

USB or Ethernet Processing Boost

The Software sees resources load on PC and when it feels RAM, CPU or HDD is getting stressed; it moves some work to the external box which is on standby consuming low power. Like playing music is lesser priority then say checking email. The Software Resource manager moves the Music Player and dependencies open in RAM to the Resource outside via USB and makes a Glitch-less switch. This can be remembered as a setting and used whenever the external resource is plugged in. Like RAID but for Home/Small Office users to use redundant capacities. Hardware scales up/down with needs and does not hog electrical power.

A lot of Processing Power and other resources go waste, consuming valuable energy in the present desktops. How faster things can be if all peripherals were on TCP/IP and Wireless (optical). This way an external resource box can directly play the speakers or print too without taking Main CPU time.

delabs - 2009

Desktop Computing Future

Wish we could Stop making Desktop Computers that are Energy Guzzlers by 2020. The Laptop/Notebook Electronics Design Architecture could be Ported to the Desktop Computer Physical Framework.

This makes Battery Operated Lean Desktops that can always be on Float Charge. Temporary mobility and convertibles are also possible. Power Failure proof.

A flexi ferrite table cover to wireless charge mouse, printer and keyboard batteries. An additional Lan with Wi-fi to network with all the Peripherals. This gets rid of the Cable Clutter and Device Drivers for Peripherals.

Desktop Computing Future

Device Interface

Wireless USB has not still been adopted as a standard for peripheral interface. (not to be confused with Wi-Fi USB sticks). BlueTooth is good but does not completely address Easy Peripheral Interface in terms of usability etc. This may help the Desktop Comp.

Nettops use less power and are the Desktops of Tomorrow, with cloud computing and wireless storage these are the essential devices to go to Green Computing and the Client-Server Architecture with the Cloud in mind. We need both Intranet-Cloud and Internet-Cloud.

Each PC should have Two Wi-Fi. One for Device Networking and the other is for Web and Networking. Device Networking means adding Smart Peripherals without Drivers. Example Wi-Fi External HDD and Wi-Fi Printer.


Rapid on off Power can Damage Hardisk. Transport of PC over rumbling Terrain, PC or Notebook drop on Hard Surface, Impulsive Jerks of Table on which Desktop Comp is placed; can mean, that your data and device is a goner. Maybe Desktops should use the more mobile Notebook Drives or external portable drives (technology), as these consume less power and are more robust.

old and new notes of mine since 2007 - delabs

Desktop Computer Reforms

Please pay attention to an earnest plea from a person who has pulled cards and ram from xt-at 286-386 days. Some people are innovating, at least follow those lines. Help make Desktop Computing Obsolete.

Dockables and Convertibles that means Tablets that transform into Laptops and Desktops. Then the Abominable Laptop Hinge or Lid failure will not bother you.

Desktop Computer Reforms

Tablets, Nettops, Netbooks and Notebooks are the future. Low power consumption, wireless, light, modular, low voltage.

Thursday, August 08, 2019

Accelerometers in Electronics

An accelerometer is a device that measures non-gravitational accelerations. These are accelerations produced by mechanically accelerating the accelerometer via its casing. Accelerometers can be used to measure vehicle acceleration.

Accelerometers can be used to measure vibration on cars, machines, buildings, process control systems and safety installations. They can also be used to measure seismic activity, inclination, machine vibration, dynamic distance and speed with or without the influence of gravity. - Accelerometer Wikipedia

Accelerometers in Electronics

MMA7260Q is a 3-axis accelerometer  from Freescale Semiconductor. This accelerometer can be used with an extension Library Mma7260q which simplifies some initialization values and tilt detection.

ADXL105 Lower-Noise Wider-Bandwidth Accelerometer - The ADXL105, a near-ideal kind of vibration sensor, eliminates significant problems with existing vibration sensors, such as piezoelectric and bulk capacitive sensors. Primary benefits derive from much lower cost, stable sensitivity as a function of frequency and temperature, ruggedness, and ease of use. Besides machine health and condition monitoring, it is particularly well suited for noise and vibration cancellation applications.

A beginner's guide to accelerometers - By measuring the amount of static acceleration due to gravity, you can find out the angle the device is tilted at with respect to the earth. By sensing the amount of dynamic acceleration, you can analyze the way the device is moving.

Society of Robots' tilt to servo control app - How does it work? Inside an accelerator MEMS device are tiny micro-structures that bend due to momentum and gravity. When it experiences any form of acceleration, these tiny structures bend by an equivelent amount which can be electrically detected

David T.'s motor balancing experiments - Using an oscilloscope to measure AC vibration signals generated by an accelerometer (from Dimension Engineering).

Digital and Embedded Systems Design

An Embedded Microcontroller or DSP system is made of Chips, Circuits and Firmware. The digital voltage levels, speed, bus width, fan out, power consumption are some factors that a designer has to keep in mind. As portable and wireless gadgets are becoming more popular, RF, Ethernet and Energy Efficient Design aspects should be studied. Power electronics and Analog Circuits knowledge is used around the system, all this is integrated to make an instrument, equipment or gadget.

Microcontrollers are digital chips that derive their intelligence from the firmware program that a user loads into it. Tiny Logic and Math elements simulate Digital Logic according to the programmed instruction to obtain a desired result. Having an equivalent math or logic circuit for the same result would take enormous space, cost and effort. I cover this subject in Embedded Systems

Embedded Systems Design

Microprocessors and Microcontrollers

Analog devices like transistors and diodes lead to opamps and analog computing. This takes more parts but with fast devices can be real time. Then came Logic and Digital Circuits, here also big systems will take too many parts. A very Old hp Logic Analyzer instrument, could be HP1600A, had more than five large PCBs, Toggle Switches and numerous 74Fxx TTL Chips. I tried to revive it, it could not be fully restored.

Microcontroller - 8051, 8052, OpCodes, Analog and PC Interface.

Then came the solution the Microprocessor. Here the entire system goes into the firmware and a Hardware Tool Set in the Microprocessor made up of Logic and Math is sequentially used to perform the same operation that would require innumerable Gates in a plain hardware digital circuit. But as it performs the operations one after another, it takes time and is defined by the CPU Clock Speed.

When the External RAM and EPROM and other peripheral devices moved into the main package, MicroController were born. When more external devices merged with the MicroController. It formed a nearly complete computer, this is known as the SOC.