Basic components in any electronics application Use of basic components in practical circuits Introduction to embedded system and robotics

1. BASICS OF
ELECTRONICS

2. CONTENTS
Theory topics
• Power supply
• Sensors (LDR,TDR,IR)
• Current Driver
• Relay
• Motors
• Wireless (DTMF)
• Introduction to microcontroller
Practical Demonstrations
• Power supply
• Automatic light dimmer & Temperature indicator & Object Sensing
• 230v controlling using relay
• Motor controlling using (DTMF)

3. POWER SUPPLY

4. Power Supply
Block diagram of power supply

5. Circuit diagram

6. TRANSFORMER

7. DIODE

8. Positive Output Negative Output
Regulator IC

9. Filter Capacitor

10. Adapters

11. SENSORS
&
COMPONENTS

12. LDR

13. LDR

14. TDR

15. IR Sensor pair

16. IR Sensor pair

17. IR Sensor pair

18. PNP NPN
TRANSISTER

19. LED

21. GENERAL
ELEMENTS

22. Soldering

23. Relays

24. Relay

25. Relay

26. Relay Application

27. CURRENT DRIVER
CURRENT DRIVER

28. IC L293D
 It is a motor driver IC.
 It has internal clamp diodes
 Output current 600mA per channel.
Supply Voltage range of 4.5 V to 36 V.
 Dual Half H-Bridge Drive.

29. Driver IC

30. Driver IC

33. Electric motor: machine that converts electricity into a
mechanical motion (rotations).

34. MOTORS TYPES
STEPPER MOTOR SERVO MOTOR DC MOTOR

35. Gear DC MOTOR

36. Practical Demo
• Power supply
• Automatic light dimmer & Temperature
indicator & Object Sensing
• 230v controlling using relay
• Motor controlling using (DTMF)

37. WIRELESS

38. TSOP

39. RF 434 Module

40. DTMF

41. DTMF IC 8870
ADC

42. 8870 FUNCTIONAL TABLE

43. How DTMF signal can be Received
???
TWO WAYS TO Rx DTMF
1.DTMF signal can be taken from
speaker and using microphone to
convert sound waves to electrical
signals …… tedious work.
2.The other way is through
earphone jack

47. Embedded System

48. MICROCONTROLLERS

50. Generalized Block Diagram of Simple Robot

54. Thank U !