seigezapf
Resolved by thetechguru!
Hello,
I am sure a simple question, but I can't seem to find the answer. The EZB-4 info states:
"Each port has 3 pins, which are Gnd, VCC and Signal. The Gnd and VCC are for powering the device connected to the port. The Signal pin is connected to the EZ-B Microchip for reading or writing data from Digital or ADC. The Gnd and VCC pins are not connected to the Microchip, they are used only for powering the peripheral connected to the EZ-B v4.
For example, a servo has a 3 wire plug that connects to one of the EZ-B Digital Ports. The wires of a servo connector are Gnd, VCC and Signal. The Gnd and VCC provide power to the servo's motor and circuit. The Signal wire carries the information to tell the servo what position to move."
OK, got that. But which pins are which. I believe ground is black, Then is VCC white or red? Thanks. I'm guessing white.
Ground is black ("inside" pin), Red is VCC (middle pin), Signal is White ("outside" pin).
Alan
seigezapf
thats correct .black is gnd vcc is red and white is signal
Thanks guys. I feel pretty stupid asking that, but I couldn't find it anywhere.
It is kind of on page 3 of the EZ-B v4 data sheet chrome-extension://ecnphlgnajanjnkcmbpancdjoidceilk/https://synthiam.com/Tutorials/Files/EZ-Bv4%20Datasheet.pdf
where the power pins are labeled, and I am sure it is somewhere else, but yeah, not obviously mentioned anywhere.
Alan
Just a footnote here; Remember that the VCC (Middle pin) on the digital ports is pass through voltage and amperage from your power source. So that whatever your feeding the EZB with will be at the same voltage and provide the same amperage at these pins. Now the ADC, Uart 0 and the i2C ports have power pins that are regulated on board and provide 3.3 vdc to power small devices like sensors. No amperage there of any value for bigger devices.
@Dave... The amount of amps are not a problem in itself for devices... Devices only draw what they need so in a sense mA or amps are not "pushed" (for lack of a better word) into a device like voltage is... As an example you can have a massive 1000amp battery putting out only 5v and a lowly ping won't have any issues with it... Now by comparison if you had a tiny 800mA 12V battery then that would burn up the ping in a few seconds...
@Richard R,
That being said, with higher amp batteries, you do need to be careful with the "hot" end to prevent sparks and shorts. 12V can cause a nasty skin burn or an exploding battery at 19 amps....
Alan
I had looked at that page you linked Alan. I guess I thought the "unregulated voltage" label was referring to the array of digital connectors not to the specific pins the label was covering. But i have my answer now and am good to go.