Sorry if this is already covered somewhere else, but I’ve scoured the website and couldn’t find anything. If it is, just let me know!
I have a BRAT with an SSC-32 and a BMP-01 Whisker Sensor. I have the BRAT up and walking around, but now I want to add the Whisker Sensors. I’ve only worked with basic electronic circuits, and I’m paranoid I’m going to break something. What exactly do I connect to get the value read in?
I know I have to go from the power through the resistor and into and I/O pin. But, where on the SSC-32 is the power and I/O pin??
I’d appreciate anyone’s help; I’m sure I’ll be fine once I get started!
The simple answer is probably to connect the common connection of the microswitch to the digital input pin on the ssc-32, and connect the NO (normally open) connection on the microswitch to ground on the ssc-32. When the status of the digital input pin is queryed, an ascii 1 should be returned when the switch is open, and an ascii 0 should be returned if the switch is closed. More info in the ssc-32 manual about the I/O pins.
The whisker “bumper switches” come with 10k resistors that can be soldered for pullup or pulldown. The gist of it is, connect one end of the switch to the I/O pin. Connect the other to either…
ground, then install a resistor from the I/O pin and 5vdc. When the switch is open the I/O pin will read 5vdc, when the switch is closed the I/O pin will read 0vdc.
5vdc, then install a resistor from the I/O pin and ground. When the switch is open the I/O pin will read 0vdc, when the switch is closed the I/O pin will read 5vdc.
Thanks! That should be extremely helpful, I’ll try that out as soon as I get a chance.
Just to make sure I know exactly what you’re talking about… When you say I/O pin, you mean the pin closest to A, B, C, or D, correct? And when you say 5vdc, should I attach that directly to the input power from the battery, or the + pin next to the A or C pins?? I assume either will work, but is there a standard “best” way to do it?
Hi,so what would be the matlab syntax to read the digital input at A?
A is going to give error.
There should be a matlab syntax for it to recognize the port and get the value of A?
Is it
fprint
fscanf
fread
fgets
fgetl
?
I have tried all of these. No help.
Hi,so what would be the matlab syntax to read the digital input at A?
A is going to give error.
There should be a matlab syntax for it to recognize the port and get the value of A?
Is it
fprint
fscanf
fread
fgets
fgetl
?
I have tried all of these. No help.
