TRONIX FUNDA

This is a simple touch switch circuit built using transistor. In this circuit when a person touches the touch pad provided (or you can have simple wire instead of touch pad) at the base of the NPN transistor and also to the positive of 5V battery then his/her skin acts as a resistor and this closes the circuit and at the same time the transistor turns on and hence the LED connected there glows. Here I have given Proteus demonstration of the same. When no one touches the pad LED is not ON is shown below. When someone touches the pad then the LED glows and is shown below.

Simple Motor direction control using Relay Below circuitry shown is the simple circuitry for controlling the rotation direction of motor using relay driver and a push button to switch the relay driver. This has been implemented in proteus and tested successfully. Go through the same and have fun with it. Components used: Resistor 1k Relay 12v Simple DC motor Push button Transistor NPN BC547 Diode &  Power supply and batteries.

Smart Parking Management System Here I'm showing a simple Parking Management project which is smart one. In the below figure shown it is implemented on proteus and simulated successfully.There is a LCD display located outside the parking system.It shows the number of lots available and which lots are available.Also iwhichever lots are available the lights at that lot will glow and whenever vehicle is parked light will switch off automatically. The code for the smae is given below you can connect your LEDs of respective lots to pin no.22 to 29

VHDL CODES          4:1 MUX USING IF ELSE STATEMENT library IEEE; use IEEE.STD_LOGIC_1164.ALL; use IEEE.STD_LOGIC_ARITH.ALL; use IEEE.STD_LOGIC_UNSIGNED.ALL;   ---- Uncomment the following library declaration if instantiating ---- any Xilinx primitives in this code. --library UNISIM; --use UNISIM.VComponents.all;   entity MUX41 is    Port ( I : in  STD_LOGIC_VECTOR (03 downto 0);           SEL : in  STD_LOGIC_VECTOR (01 downto 0);           Y : out  STD_LOGIC); end MUX41; architecture Behavioral of MUX41 is begin PROCESS (I,SEL) BEGIN IF(SEL="00")THEN Y<=I(0); ELSIF(SEL="01")THEN Y<=I(1); ELSIF(SEL="10")THEN Y<=I(2); ELSE Y<=I(3); END IF; END PROCESS; end Behavioral;   2.         4:1 MUX ...

      To learn VHDL programming just go through these websites ...Have fun You will get the programs too.   1.http://esd.cs.ucr.edu/labs/tutorial/ 2.http://www.asic-world.com/vhdl/tutorial.html 3.http://users.ece.gatech.edu/sudha/book/starters-guide/

Simple Temperature controller mini project using IC741 used as comparator! Circuit diagram: Above circuit consist of ic741 which is used as comparaotor.The reference temp. is given at inverting terminal of 741 which is adjusted by potentiometer so that can have the ref.temp. which you want.

Op-amp virtual ground and virtual short concept