2015 class is done and gone!
9.00 to 12.00 AM Electronics Class
Monday:
Page 2-7
introduction to relay
Tuesday
Page 7 current
relay details
CHALLENGE:
Slow Fan /Fast fan with ann
1.00 to 4.00 PM Robotics Class
Goal: construct and program a robot. the robot will be controlled via a Android Cell phone.
The final test will be a robot soccer tournament, with each student competing on teams for the championship.
the coaster Chassis will be the same as last year.
The Controller is an Arduino . The drive logic board will be hand made with relays as per this Instructible. 
here is the actual relays we used
The Bluetooth link will be provided by this (ubiquitous) HC05 module:
The header strips will be used to connect the loose wires to the arduino
first run at the arduino code and the Android code will be from TechBitar. This Cel Phone App, and Arduino code is a simple interface that
Control 2 DC Motors Via Bluetooth (1)
Which pin is which?
BOM
4WD motor base
..1 ea battery holder (included)
..4 ea AA battery
Arduino
.. 1 ea 9V battery
..1 ea 2.1mm plug w wires
Header strips for arduino connection
HC05
..1 ea cable (included)
..1 ea 1000 ohm resistor
.. 1 ea 2000 ohm resistor
Relay H Bridge
..2 ea relay
..2 ea tip-120
..2 ea 220 ohm resistor
Tywraps
Hotglue
Tape
Tools:
Power supply
strippers
Other surfing:
these prototype backpacks are a little cheaper, Amazon Offering,
Two Wheel, 2 deck:
US Based in Vermont:
http://yourduino.com/sunshop2/index.php?=product_detail&p=223
Other Chassis : http://www.mhobbies.com/dagu-magic-car-4wd-robot-chassis-with-4-tt-motor.html 28.00
Simpler 2 wheen chassis in stock http://yourduino.com/sunshop2/index.php?l=product_detail&p=406
Motor controller
http://www.allelectronics.com/make-a-store/item/md-57/motor-driver-1a-dual-tb6612fng/1.html