1. EE 396: ACCESSORS….. Critical Design Review Group Members: Allen Bui Ruthsenne Gagarin Erica Salvador

2. Brief Overview of the project Objective: To create an accessor, a device that provides access for individuals who have limited abilities. This accessor will be a household utility controller that will allow the user to (independently access) interact with common household appliances.

3. Project meaning Millie a.Bio  Cerebral Palsy b.Needs  Independence (Access to the following appliances) TV Phone Radio c.Solution to Needs Modify X10 Home Automation Kit

4. Components Needed: –Mount/user input –LED Display –Picaxe –X10 Remote (Wireless Communication Controller) –Appliances TV, phone, radio

5. Scanner sub-modules A.LED Display 1.Vertical display 2.Horizontal display B.Digital Signal Generator

6. Physical set up

7. Overall block diagram Scanner/LED Display Controller (X10) Transceiver Major modules:

8. real swit choutput address crosspoint address input pin s 1ON0001 0110A6in0*in7 1OFF0010 0110B6in0*in6 2ON0001 0101A5in1*in7 2OFF0100 0110C6in1*in6 3ON0010 0101B5in2*in7 3OFF0100 0101C5in2*in6 4ON0001 0100A4----- 4OFF0010 0100B4----- 5ON0001 0011A3----- 5OFF0100 C4-----

9. Two picaxe set up

10. If want to turn appliance 1 on, output 0001 0110

11. SCANNER-LED Display Circuit Layout

12. Pseudo Code Map: Scanning Module

13. Pseudo Code Block Diagram: Scanning Module

14. SCANNER- LED Display Code symbol counter = c1 main: for counter = 1 to 2 'Scanning LED lights vertically high 1 'appliance 1 wait 1 if pin4 = 1 then hdisplay 'input low 1 high 2 'appliance 2 wait 1 if pin4 = 1 then hdisplay low 2 high 3 'appliance 3 if pin4 = 1 then hdisplay wait 1 low 3 next counter end hdisplay: 'Scanning LED lights horizontically for counter = 1 to 2 high 5 'on wait 1 low 5 high 6 'off wait 1 low 6 next counter goto main

15. Methods of testing LED’s (LED lit, high voltage) Multimeter (measure for high voltage) Go for broke! (not preferred) If something smells burnt – something’s wrong

16. Remaining Tasks: 1.Fix code 2.Final testing 3.Fabricating

17. Current problems Picaxe too small (need one with just one more input!) –Bigger picaxe enables to use more appliance and easier to program -Picaxe 28X and 40X are in the UK PCB design dependent on type of chips used How do we link two picaxe together to work as one?

18. Gantt Chart

19. Resources http://archimedes.hawaii.edu/ http://www.homeautomationzone.com/x 10-over.shtmlhttp://www.homeautomationzone.com/x 10-over.shtml http://cmap.ihmc.us/ http://www.rev- ed.co.uk/detail.asp?id=rev02&prodnam e=PICAXEhttp://www.rev- ed.co.uk/detail.asp?id=rev02&prodnam e=PICAXE

20. What are your questions?