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Powering Vizy

Powering Vizy is typically done by plugging in the AC-DC power adapter that comes with Vizy into Vizy's power input connector. The power adapter supplies 12V at 2.5A. The PoE adapter is a popular way to power Vizy as well. But Vizy can be powered by other means as well.

Powering Vizy through the power input connector

  • Vizy's power input connector can accept between 7.5V and 18V.
  • The input voltage dictates the voltage available at the 12V output.
  • It is recommended that Vizy's power supply not be rated for less than 15W of power.
  • Vizy's internal 5V switching power supply can supply up to 6A and operates at 90% efficiency. The 5V supply is used to power the Raspberry Pi, the 5V output, and the USB ports. The sum of all these currents should not exceed 6A.
  • The power input connector is reverse-polarity protected.

Powering Vizy through the USB-C connector

You can power Vizy with a 5V supply through the USB-C connector. This is useful if you want to use a portable charger to power Vizy via battery. (Portable chargers output 5V through a USB port and typically have large battery capacity.)

  • The 5V supply should be at least 4.8V and not exceed 5.25V.
  • The USB-C cable should have a high current capacity.
  • When using a 5V supply, the 12V output won't be available and should not be used.
  • The button will no longer control power to Vizy. Vizy will come on as soon as you plug it into the 5V supply.
  • You can still do a safe shut-down of Vizy by holding the button until the Raspberry Pi shuts down, indicated by the beep. You can then unplug the 5V supply from the USB-C port.
  • All other aspects of Vizy will function normally.

Powering Vizy through the I/O connector

You can also power Vizy through the I/O connector, which can be convenient if you want to reduce the things plugging into your Vizy, and you don't mind giving up the 12V output (the 12V output is designed to also be a power input.) To power Vizy through the I/O connector hook the negative side of the supply to one of the Ground pins (pin 1 or 8) and the positive side to the 12V output (pin 2). The same conditions apply to this method as apply to powering Vizy through the power input connector, including reverse-polarity protection.

wiki/powering_vizy.1633651090.txt.gz ยท Last modified: 2021/10/07 18:58 by vizycam