1. PICAXE Microcontrollers An Introduction by NearSys

2. What is a PICAXE? A family of microcontrollers Based on the PIC microcontroller Internally programmed with an interpreter and communications program Program stored in the PIC’s internal EEPROM Interpreter operates on one instruction at a time

3. PICAXE Variations PICAXE-08M2 PICAXE-14M2 PICAXE-18M2 PICAXE-20M2 PICAXE-28X2 PICAXE-40X2

4. PICAXE Voltages Five volt chips, but can operate at 1.8 volts

5. PICAXE Multiple Programs PICAXE-08M2 PICAXE-14M2 PICAXE-18M2 PICAXE-20M2 PICAXE-28X2 PICAXE-40X2

6. PICAXE Multiple Programs PICAXE-08M2 PICAXE-14M2 PICAXE-18M2 PICAXE-20M2 PICAXE-28X2 PICAXE-40X2

7. PICAXE Clock Speed PICAXE-08M2 PICAXE-14M2 PICAXE-18M2 PICAXE-20M2 PICAXE-28X2 PICAXE-40X2

8. PICAXE Clock Speed PICAXE-08M2 PICAXE-14M2 PICAXE-18M2 PICAXE-20M2 PICAXE-28X2 PICAXE-40X2

9. PICAXE Pins Logic low < 1.4 V Up to four banks, A, B, C, and D depending on variation Most I/O pins are bidirectional Hardware interrupts on the X2

10. PICAXE Memory Program RAM Data Scratch Pad

11. PICAXE Memory Program RAM Data Scratch Pad

12. PICAXE Memory Program RAM (variables) Data Scratch Pad

13. PICAXE Memory Program RAM Data Scratch Pad

14. PICAXE Memory Program RAM (variables) Data Scratch Pad

15. Code Examples Input Commands PIN COUNT PULSIN SERIN READI2C READADC and READADC10 IRIN RFIN

16. Code Examples Output Commands HIGH and LOW PULSOUT SEROUT WRITEI2C PLAY and TUNE SERVO PMWOUT IROUT RFOUT

17. Code Examples Program Flow Control Commands GOTO GOSUB-RETURN FOR-NEXT DO-LOOP (UNTIL or WHILE) IF-THEN-ELSEIF ON-GOTO (GOSUB) SELECT-CASE BRANCH

18. Code Examples Communications Commands I2cslave 10100000,i2cfast,i2cword writei2c 0,("hello") readi2c 0,(b0,b1,b2,b3,b4)

19. Code Examples Communications Commands serout B.0, T1200_4,(“Testing”) serin C.1, T1200_4,(“X”),B.0, B.1, B.2 sertxd (“Value:,”B.5) serrxd (B.0, B.1, B.2, B.3) hsersetup b9600_4, %10 hserout 0,(b.0) hserin 0,50

20. Code Examples Memory Commands PEEK-POKE READ-WRITE GET-PUT

21. Editor

22. Editor Selecting Mode

23. Editor Selecting Serial Port

24. Editor Example Text Program

25. Editor Example Flowchart Program

26. Editor Example Wizard

27. Editor Example Syntax Check

28. Editor Download Program

29. Editor Simulate a Program

30. Editor Debug a Program

31. Editor Terminal Program

32. “Whether we're fighting climate change or going to space, everything is moved forward by computers, and we don't have enough people who can code”. Richard Branson