Orange LED. CCW direction. This entire operation depends upon the program embedded in micro controller. So now let us understand software program. Software program for remote control DC drive. Entire program can be well explained by explaining all the functions used in this program.
Start function is a continuous function that will rotate motor in either direction with set speed. Actually it generates PWM to vary the speed of motor. It will set the direction of motor and then generate PWM on either P3. Intra function is an interrupt enabled function that will receive data byte available on P1. Whenever interrupt arrives it will be automatically called and after some delay it will get the byte available on P1. It increments a count every time and checks even or odd. Actually it increases pulse width time by 1 ms.
Total time is 10 ms and we are varying the width of pulse from 1ms to 9ms. So speed of motor varies in 8 step. That is indicated on 8 LED bar graph. Dec speed is similar to this but it will decreases pulse width by 1 ms. Shift up function is similar to rotate the content of port P2 left, once. It sends one more zero every time on P2 pins from P2. It will send one more 1 on P2 pins from P2. So bargraph is reduced by once.
Delay function is a variable delay that varies the delay from 1 ms to the count you load into the function. T0 generates basic delay of 1ms and then this basic delay in a loop is repeated for number of times like 2,3,4…. Many people can understand and understand schematics called label or line diagrams.
This type of diagram is like choosing a photograph with the parts and wires all connected up. A wiring diagram is a straightforward visual representation in the physical connections and physical layout of the electrical system or circuit.
It shows how a electrical wires are interconnected and can also show where fixtures and components could possibly be attached to the system. Use wiring diagrams to assistance with building or manufacturing the circuit or digital camera. They are also ideal for making repairs. The switch is not working in the circuit! Try Grounding the control pins of both ICs using 0. Great circuit, is there the possibility that a wireless doorbell circuit could be posted.
I am really interested as to the difference in the circuits with there needing to be a receiver and a transmitter circuit. This does not work, your circuit diagram is wrong. Some components are missing and this causes problems. Pull-up resistor is needed for button. Also decoupling capacitors needed for power inputs. Components Timer IC — 2.
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