1. Project #1 Smart Sprinkler Robot System

2. Introduction

3. Features Weather Forecasting Soil Moisture Wireless Communication GPS

4. Base Station

5. Hose Actuator Controls Water Flow

6. Hose Actuator Circuit

7. JTV-100 Hose Actuator

8. Power Electronics 5V LDO (Low-Dropout Regulator) Regulates Battery Powers Transmitter and Receiver

9. Microcontroller Arduino Mega 2560 Communicates with Robot Sprinkler Controls Sprinkler

10. Arduino Mega 2560

11. Internet Arduino Ethernet Gathers Weather Forecast National Weather Service

12. Arduino Ethernet

13. Wireless Communication RXM-900-HP3 Receiver TXM-900-HP3 Transmitter Serial Communication Multiple Channels

14. Wireless Communication System

15. Transmitting at 906.28 MHZ

16. Wireless Communication Circuit

17. Robot Communication

18. GPS Provides Robot Location Navigation

19. Sparkfun Venus GPS

20. Robot Power

21. Batteries Car Battery Powers Motors Small Battery Powers Circuits

22. Car Battery Small Battery

23. Power Electronics 3.3 and 5V LDO (Low-Dropout Regulator) Regulates Battery Supply Transmitter, Receiver, GPS, and Arduino

24. Gate Drivers LT1160 Power MOSFET Driver IRF530N Power MOSFETS Short circuit protection PWM (Pulse Width Modulation)

25. H-Bridge Diagram

26. Gate Driver Circuit Protection Example Duty Cycle : 25% Frequency : 32 kHz Input Voltage : 5V Output Voltage : 12V

27. H-Bridge Circuit

28. Robot Motors

29. Microcontroller Arduino Mega 2560 Controls Sprinkler Robot Records Soil Resistance

30. Navigation GPS location

31. Navigation Drive Forward GPS location

32. Navigation Calculates Angle to Destination Rotate

33. Navigation Drive to Destination Repeat

34. Drive Motors Moves the Robot Failed Verification

35. 1LPV6V Motors

36. Soil Probe Motors Insert/Remove Probe Potentiometer Safety

37. Soil Probe Measures Soil Resistance Voltage Divider Rule

39. Challenges Wireless Communication Antennas Mechanical Issues Battery Voltage Spikes

40. Thank You Professor P. Scott Carney TA Mustafa Mukadam ECE Machine Shop ECE Electronic Shop MIT Lincoln Lab

41. Questions? I Have Many!!