Foster: New page: The VEX Spike is a 20 Amp, H-Bridge Relay Module that is small enough to be remotely mounted almost anywhere on your robot. Spike is designed for driving small motors in forward, reverse, ...

2010-05-19T19:16:52Z

New page: The VEX Spike is a 20 Amp, H-Bridge Relay Module that is small enough to be remotely mounted almost anywhere on your robot. Spike is designed for driving small motors in forward, reverse, ...

New page

The VEX Spike is a 20 Amp, H-Bridge Relay Module that is small enough to be remotely mounted almost anywhere on your robot. Spike is designed for driving small motors in forward, reverse, or stop (brake). Spike is opto-isolated at the signal input to protect the Robot Controller against motor noise and return currents. Requires a 3-wire cable for connection to the Robot Controller.

,--W \
| R | digital output 1
| B /
/ W----'
to Spike | R----.
\ B--. '--W \
| R | digital output 2
'----B /
W,R,B = White, Red, Black

Code in EasyC
<source lang=c>
Channel5=Get RxInput (1,5);
Channel6=Get RxInput (1,5);

if (Channel5 == 1) {
// forward
Set Digital Output (1,1);
Set Digital Output (2,0);
} else if (Channel6 == 1) {
// reverse
Set Digital Output (1,0);
Set Digital Output (2,1);
} else {
// stop
Set Digital Output (1,0);
Set Digital Output (2,0);
}
</source>

<source lang=c>
//Code in RobotC
Channel5=vexRT[5]; // using the button on the back
if (Channel5 >= 50) {
// forward
SetDigitalOutput[1] = 1;
Set Digital Output (2,0);
} else if (Channel5 <= 200) {
// reverse
Set Digital Output (1,0);
Set Digital Output (2,1);
} else {
// stop
Set Digital Output (1,0);
Set Digital Output (2,0);
}
</source>

[[http://content.vexrobotics.com/docs/spike-blue-guide-sep05.pdf VEX Spike User Guide]]

[[http://www.vexrobotics.com/products/vexpro/spike-relay-h.html VEX Spike H-Bridge at VEXRobotics]]

VEX Spike - Revision history

Foster: New page: The VEX Spike is a 20 Amp, H-Bridge Relay Module that is small enough to be remotely mounted almost anywhere on your robot. Spike is designed for driving small motors in forward, reverse, ...