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posted by mrpg on Wednesday March 14 2018, @11:20PM   Printer-friendly
from the raspberry-for-pi-day dept.

The Raspberry Pi Blog announces:

Raspberry Pi 3 Model B+ is now on sale now for $35, featuring:

  • 1.4GHz 64-bit quad-core ARM Cortex-A53 CPU
  • Dual-band 802.11ac wireless LAN and Bluetooth 4.2
  • Faster Ethernet (Gigabit Ethernet over USB 2.0)
  • Power-over-Ethernet support (with separate PoE HAT)
  • Improved PXE network and USB mass-storage booting
  • Improved thermal management

Alongside a 200MHz increase in peak CPU clock frequency we have roughly three times the wired and wireless network throughput, and the ability to sustain high performance for much longer periods.

Video announcement here.

FAQs:

  • Not discontinuing earlier Raspberry Pi models
  • Raspberry Pi 1A+ continues to be the $20 entry-level "big" Raspberry Pi
  • Considering possibility of introducing a Raspberry Pi 3A+
  • CM!, CM3 and CM#L compute modules continue to be available.
  • Still using VideoCore

Now I am left to wonder how many amps the power supply wall wart needs to be.


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  • (Score: 1) by effbee on Wednesday March 14 2018, @11:26PM (2 children)

    by effbee (902) on Wednesday March 14 2018, @11:26PM (#652679)

    Still 5V 2.5A from what I've seen.

  • (Score: 5, Informative) by EETech1 on Thursday March 15 2018, @02:01AM (1 child)

    by EETech1 (957) on Thursday March 15 2018, @02:01AM (#652729)

    The adapters that seem to work the best are actually manufactured to be on the high end of the voltage spec for USB and are often 5.2 - 5.4 volts in order to have some headroom for the 5V regulator to work with after the voltage drop from the wires and connectors.

    These seem to work much better in my experience.

    One of my favorites (2.4A 5.25V with the cord directly attached to the charger (saves one connection)
    https://www.adafruit.com/product/1995 [adafruit.com]

    FYI, the red light on the pi is connected to a voltage sensing circuit, so if you ever see the red light flash while your pi is running, the voltage is dropping below 4.65 and your pi is in danger of resetting.

    https://www.raspberrypi.org/forums/viewtopic.php?f=91&t=83372#p589877 [raspberrypi.org]

    Item 1. BAD POWER INDICATIONS CAUSED BY THE POWER SUPPLY UNIT (PSU) OR CABLE
    When using a B+ and the Raspbian graphical user interface (GUI), or Windows10IOT, if a "rainbow square" appears in the top right corner, this is also indicative of a power problem, as is the "PWR" LED suddenly blinking off.

    Bad power is the main cause of all kinds of problems, including WiFi adapters not working well, mysterious crashes, and SD Card corruptions.

    Make sure the PWR LED never goes out during use

    • (Score: 2) by frojack on Thursday March 15 2018, @03:08AM

      by frojack (1554) on Thursday March 15 2018, @03:08AM (#652756) Journal

      Agreed, 100%.

      With marginal psu, you never know when it's going to crash.
      Just over-buy the wall wart an model 3 is Rock solid.

      --
      No, you are mistaken. I've always had this sig.