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m venugopalParticipant
you can find circuit and enough details in below link, but it is wireless based. please go through below link:
m venugopalParticipantAs per Tesla wireless power transmssion principle, it is possible. but it is absolutely with wires (coils) and to acheive 7 to 10 meters transmitter coil need huge power.
m venugopalParticipantusing 7805 is bad idea, you can try with variable voltagee circuits.
m venugopalParticipantconnect Atmega 16 four data pins to motor driver 1 input pins and another four data pins to motor driver IC 2 input pins.
i think you want to conttrol four DC motors, it is possible with Atmega 16. it has enough digital pins to control four DC motors please go ahead.
August 1, 2016 at 11:35 am in reply to: [Need Help] Smart Security and Tracking System for Vehicles #14097m venugopalParticipantStep 1: select any microcontroller
select any microcontrollerm like, 8051, Arduino & AVR etc. my sugestion is, select any MC which was you already familiar. if your are new to micrcontrollers, better to choose Arduino
Step 2: connect GSM,GPS,RFID modules to microcontroller.
you can find valuable information in our EG website regarding interfacing of these modules to microcontroller. please go through below links.
http://www.engineersgarage.com/embedded/avr-microcontroller-projects/gps-interface-circuit
Step 3: Write microcontroller code.
add all respective libraries, draw your project function (working) as algorithm, as pe algorithm write code.
if need any help in programming, please post few important details after selectng micrcocontroller. like
which microcontroller you choosen
and your algorithm
m venugopalParticipantinitially every electronics student feel like this, glad to help you with your query.
my suggection is, if you have basic knowlegde of electronic components like transistors, resistors, capacitors. pleasde try to play with them. and find some easy circuits in web and practice them. if you got error, try to solve it. if you can not post query for expert support.
to know well about electronic circuits only way is try do something with them, if possibble try to implement your own idea.
you can find many electronics circuits in "electronic circuits" and "circuit design" tabs.
all the best.
m venugopalParticipantplease refer below link, you can find huge information to your questions.
http://www.engineersgarage.com/articles/sensors
Thank you
m venugopalParticipantThank you. Glad to help you with your query. You will find contribute tab in the menu where you can utilise it to submit the content for editor review.
m venugopalParticipantyou can try with MAX1472. it is crystal referenced PLL. it can able to transmit OOK/ASK signal data in 300 MHz to 450 MHz (VHF/UHF) range.
if you don't want to use this IC then you can choose, 3 to 5 MHz crystal based collpits oscillator to generator signal and apply that signal as input to any ASK transmitters.
m venugopalParticipantyou can replace LM324 with LM358. use LM358 with two feedback resistors, then you can get non-inverting output value. the load cell output voltage may be in 0.xxmV to few mV. so, when designing amplifier circuit select the input resistors carefully.
but i suggest to use instrumentation amplifier, AD623 to get better result.
Please post your circuit and specification of the load cell, then i can able to answer better.
m venugopalParticipantThe kind of sensors used for line following robots (IR proximity sensors) don't sense color in the normal use of that word. They actually sense reflectivity, the reflectivity of an object at a particular wavelength is what gives it color.
So, your sensor would work best if you had a background that absorbed IR light and a line that reflected IR light. As it turns out, the colors that we call dark colors are pretty good at absorbing near IR as well as the visible spectrum, and the colors that we call bright colors are pretty good at reflecting near IR.
m venugopalParticipantHi deepak,
i haven't connect LCD 3rd pin to the 10K pot. to set contrast 10K is required at 3rd pin. and please connect 5th pin of LCD to the ground.
if you want more information please check below link.
http://www.engineersgarage.com/embedded/arduino/how-to-interface-4-bit-lcd-with-arduino
m venugopalParticipantHall Effect Sensors consist basically of a thin piece of rectangular p-type semiconductor material such as gallium arsenide (GaAs), indium antimonide (InSb) or indium arsenide (InAs) passing a continuous current through itself. When the device is placed within a magnetic field, the magnetic flux lines exert a force on the semiconductor material which deflects the charge carriers, electrons and holes, to either side of the semiconductor slab. This movement of charge carriers is a result of the magnetic force they experience passing through the semiconductor material.
As these electrons and holes move side wards a potential difference is produced between the two sides of the semiconductor material by the build-up of these charge carriers. Then the movement of electrons through the semiconductor material is affected by the presence of an external magnetic field which is at right angles to it and this effect is greater in a flat rectangular shaped material.
The effect of generating a measurable voltage by using a magnetic field is called the Hall Effect after Edwin Hall who discovered it back in the 1870’s with the basic physical principle underlying the Hall effect being Lorentz force. To generate a potential difference across the device the magnetic flux lines must be perpendicular, (90o) to the flow of current and be of the correct polarity, generally a south pole.
The Hall effect provides information regarding the type of magnetic pole and magnitude of the magnetic field. For example, a south pole would cause the device to produce a voltage output while a north pole would have no effect. Generally, Hall Effect sensors and switches are designed to be in the “OFF”, (open circuit condition) when there is no magnetic field present. They only turn “ON”, (closed circuit condition) when subjected to a magnetic field of sufficient strength and polarity.
m venugopalParticipantUnmanned ground vehicle (UGV) is nice project , good choice. you can get total information, circuit everything in our website please refer below link.
http://www.engineersgarage.com/contribution/unmanned-ground-vehicle-ugv-or-spycar
and to this projects you can add some more features, please try to develop this with more feature we will help you.
m venugopalParticipantwireless power transmission basic principle depends on tesla coil, you can understand this topic by knowing about tesla coil operation and inductance basic principle.
please refer below links , you can understand well.
http://www.engineersgarage.com/articles/wireless-power-transmission
http://www.engineersgarage.com/contribution/wireless-power-transfer
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