We discussed the different types of connectors that we could use on the robot. One type was a RJ connector. We went to Lows and bought a RJ-25 Phone Jack to help make a panel that we could put on the robot for the connectors.

We learned new software for creating circuits and mapping circuit boards: PCB123. The software allows you to order boards that you've designed. We also worked on the optical encoder board. Board size is 1.2"x1.0". Sensors are on the back side of the board. We also learned about Schmidt trigger inputs on logic parts. Schmidt triggers provide hysteresis which makes them ideal for converting analog or slowly changing levels to digital signals.

Phototransistors
V=I X R
Driving lights LEDs
Current
Quad Amp
Fixed voltage
Analog voltage
Making switch
Official Encoders
Protoboard
Output LED
Power LED
Resistors
Apitures
Looked at photo sensors
Interesting part
OR557-ND@Digiliey