SSC-32 and sensor power supply

Lynxmotion Electronics & Software
1

when it comes to the ssc-32 and sensor power supply, what’s the consenus on having a seperate power supplies or draw power from the power supply being used by the ssc-32? I’m trying to limit the weight of my project, but don’t want to under power the project either.

2

The regulator on the SSC-32 has around 200mA free to use. If your sensors draw this, or less, then use it. :wink:

3

thanks, I didn’t realize that was possible

4

One more quick question regarding the ssc-32 power. The regulator power can either come from placing a jumper on the “VL=VS” if power is being applied to the “VS1” terminal or without a jumper, power can be supplied from a seperate power source? Also, it looks like the “VS1=VS2” and “LV=VS” jumpers can be used to power all servos and regulator from one power source on the “VS2” terminal or does power need to be supplied to both “VS1” and “VS2”? So, I’m thinking it might be best to power “VL” seperate with a 9vdc battery in case something goes wrong with the servo power. Am I understaning that correctly?

Thanks

5

Um… what?.. :open_mouth:

The safest way is to power the VL with a 9vdc battery and remove the VS1=VL jumper. It does not matter if the servo voltage is connected to the VS1 or VS2 terminals if the VS1=VS2 jumpers are installed.

6

yeah, i knew it sounded a little confusing. I actually just saw your posting on powering the VL seperate.

Thanks

7

I want to attach a pressure sensor to the analog inputs of the SSC-32:

trossenrobotics.com/store/p/3220–5-Inch-Force-Sensing-Resistor-FSR-Kit.aspx

It requires a 3-wire cable with power, ground, and signal, configured as a voltage divider. (The pressure sensor is one resistor and a second, fixed resistor is added to control the sensitivity.) But the SSC-32 analog input headers have just signal and ground pins. So I’m going to have to modify the cable that comes with the sensor kit. How should I configure the SSC-32 end, i.e., where should I draw power from?

Will the Lynx Motion connector kit contain what I need to modify the cable?

lynxmotion.com/Product.aspx?productID=85&CategoryID=44

8

The connector kit does have the stuff you need to make connections like this. The SSC-32 does have 5vdc power and ground as well as the analog/digital inputs.