Monday, January 14, 2013

03: Switches & Relays



This is Ronald's switch, I like it and I took a video of his work.
I will post mine when I get it done.

Vex Kit Inventory
There are bags of screws, washers, parts and micro-controller etc. for you to build a basic squarebot.

It looks confusing at first glance, but not so bad, the manual tells you exactly where to plug in each of the component and wiring.

Switches are used to control power
1. Single Pole Double Throw (SPDT -
one change-over switch)
    Has just one pole, but with two contacts.

2. Single Pole Single Throw (SPST - the simplest basic on / off switch)
    It only make contact in one direction, like most of the switches in our homes.

3. Double Pole Single Throw (DPST - two of the simplest basic on / off switches)

03 Switches and Relays 

5V power supply
2 switches
1 LED
220Ω resistor

Here is the schematic for 2 simple ON OFF switches. Below shows the breadboard interpretation of  the circuit.




I was excited to see the circuit correctly constructed and  the LED light up.










Building a Relay Driven LEDs















5V Power Supply
1-680Ω resistor
2 LED
1 Push Button Controller
1 HFD3 1/5 Relay



Below is the breadboard constructed Push button controlled relay video






















On my way to finish a SquareBot
 


My squareBot 
After installed the batteries, hookup the cables on the battery. Download Robotic firmware.
Go to menu, select Robot drop-down menu, select download, then restarting master CPU... Dual Joystick Control.
My squatBot drives nicely after installed the codes from Robotic website.




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