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ULN2003 is used where the current rating and voltage rating of a motor or any load which is to handled by microcontroller is more than the current handling and voltage handling capacity of that microcontroller.
A pin of ULN2003 can handle 600 mA current. It can withstand voltage upto 50 volt. A pin of any microcontroller can handle current upto 200 mA and controller voltage is around 5 volt.
So we use uln2003 in parallel to any microcontroller to drive heavy load devices. Uln2003 accepts TTL from MCU which may be 5v or 0v and depending on this value ULN2003 turns on the heavy load or turn it off respectively.
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What else can I help you with?
Function of tachometer?
A tachometer is a gauge that measures mechanical rotation, and typically reads out in "RPM" or revolutions per minute. Such a gauge can be used anywhere where a measurement of speed of rotation is needed, but the most common use is to measure how many times in a minute the crankshaft of your car's engine turns, which would indicate to the car's driver how hard the car's engine is working at any given moment.
The only true story in this movie based on a true story is that it was based on Ed Gein who did not use a chainsaw and was actually from Wisconsin What film is this?
Texas Chainsaw Massacre
What is difference between microprocesser and microcontroller?
An embedded system has historically been defined as a single function product where the intelligence is embedded in the system. It could be anything from a dishwasher to a hearing aid, if that product includes a microprocessor and software. Many of today's embedded systems are looking more like PCs with user interfaces, touchscreens, displays, keypads and more. Still, these are not general function systems but are designed to perform very specific functions. An embedded system makes use of embedded hardware (microprocessor) and embedded software to accomplish its purpose. Embedded software is generally comprised of: * Real-time operating system (RTOS) * Drivers (HW peripheral interface) * Application software
Applications of Microprocessors in Telecommunications and power system?
: hi.. : i have a little idea about this question.. : because of low power consumption and accurate measurements we can use static relays based on microprocessor in power system networks. also filtering of noise is possible with static relays(based on microprocessor). : also for continious monitoring and security we can use these microprocessors.
Why were the rajputs unsuccessful at resisting mahmud of ghazna?
Hindu warriors called Rajputs resisted these advances,but their military tactics ,based on the use of elephants ,failed.
Why you do not use microcontroller in heavy machines. Why PLC we use?
Microcontroller having limited IO capacity and should not reliable in more changes in process.
What do you mean by off-chip memory in microcontroller?
The memory that is use externally when microcontroller works in expanded mode for special cases .
Can you use microcontroller c51 as a microprocessor 8085?
yes
What can one do with a C200 Microcontroller?
You can use a C200 Microcontroller to improve system efficiency, reliability, and flexibility. The C200 Microcontroller like other microcontrollers, is extremely helpful in aiding larger systems in operating.
How can using a Tachometer help my engine performance?
A tachometer will help your engine by helping you make more efficient use of it.
In microcontroller 8051 at a time how many timers you can use?
we can use both timers ...
How do I install a tachometer in my Chevy truck?
Use an inductive pickup on plug-wire #1, and connected to tachometer located in vehicle.
How do you measure r.p.m of milling cutter?
use a tachometer
Why you use capacitor with crystal in microcontroller circuit?
it provides stabilization to oscillator
what type of chips can we use in MicroController Projects in the engineering final project?
Engineers and programmers also use equivalent microcontroller boards for creating for their use of projects and for learning purposes. We are researched and created an inventory of the top 5 microcontroller projects are available, to teach practically by experts in Takeoff Projects. Some most important microcontroller projects for students: These real-time projects are having in Takeoff Projects are Real-Time Vehicle Classification and Localization UV Sterilization Robot AI-based Conversational robot for Blind Assistance Secure Fingerprint Bank Locker With Image Capture High Protection Voice Identification Based Bank Locker Security System With Live Image Authentication. Smart Medicine Reminder Box
How are robots are controlled?
Mind control. Definitely.
Who invented the the tachometer?
The inventor is unknown for a tachometer. However, the first documented use of a tachometer device was by the German engineer Dietrich Uhlhorn in 1817. He is credited with its first use, but not necessary as being its inventor.
