MoPi 2: Hot-Swap Mobile Power for the Pi

Discussion in 'Computers, Hardware, and Operating Systems' started by KK6QMS, Aug 11, 2018.

ad: L-HROutlet
ad: l-rl
ad: Left-3
ad: MessiPaoloni-1
ad: Left-2
ad: L-MFJ
ad: Subscribe
  1. KK6QMS

    KK6QMS XML Subscriber QRZ Page

    Good idea and is finally avail- but pricey-

    " MoPi 2: Hot-Swap Mobile Power for the Pi
    MoPi-2 is mobile and 24/7 power for the Pi 2 and Pi 3 boards. On your bike, up a tree, or for your home server: we've got you covered!

    MoPi-2 features:

    • Two power inputs via standard screw terminals — for standard batteries, car power sockets, old laptop, supplies, solar panels, wall adapters and more
    • Hot-swap power replacement without stopping work
    • Shudown the Pi cleanly when batteries discharge
    • Right-angled power switch accessible even another PCB is stacked on top
    • Usable as a UPS (uninterruptible power supply) by attaching both batteries and mains
    • Wide input voltage range: 6.5V to 24V 1
    • Ability to deliver up to 2.5A @ +5V to the Pi and attached additional PCBs or devices
    • Low power consumption: 15mA when is working, 0.5mA when is sleeping and only 15 µA when is off ! (more than 10 times less than the average battery self discharge rate)
    • Auto-off when input voltage reaches 6.0V, protecting the batteries from over-discharging.
    • Additional 2-pin terminal for an external battery charger (this is just a gate, all charging functionality depends on the charger itself)
    • On-board LED indicators and on screen Linux system notifications
    • Configuration of multiple battery chemistries and number of cells from a UI on the Pi
    • Full API in Python, plus a shell-friendly command-line interface
    • Very low-profile (3.5 mm), bottom entry, 40-pin GPIO connector allowing stacking of other boards on top of the MoPi-2
    • PCB pads for external power switch and +5V
    • Control of external 5V relay
    • Two-way communication via the I2C bus
    • Remote power-off: tell MoPi-2 to power down the Pi when logged-in remotely (after a clean shutdown, of course)
    • Timer-based wake-up: tell MoPi-2 what time you want your Pi to wakeup, then power it down and MoPi-2 will boot the Pi as requested
    • Supports Raspberry Pi 2, Raspberry Pi 3 and Raspberry Pi 3 B+ models.
    Many more details, including a setup guide, can be found here

    • DO NOT plug MoPi-2 onto your Pi while the Pi is powered up!
    • DO NOT touch electronic components when they're powered up — you may damage them, or burn your fingers!
    • AVOID handling circuit boards when charged with static!
    • ALWAYS read the small print on all components supplied with your MoPi-2
    • ALWAYS treat batteries and other power supplies with respect — if abused the energy they contain may surprise you in dangerous ways!
    • DO NOT feed MoPi-2 to your dog, eat nuts if you're allergic to them, or lose your sense of humour


    AB2YC likes this.
  2. KA9JLM

    KA9JLM Ham Member QRZ Page

    That is funny.

    But it is a Hot-Swap power supply.

    Thanks for the best laugh I have had today. :)
  3. KK6QMS

    KK6QMS XML Subscriber QRZ Page

    Sounds like you do not understand how it works. Once installed you can have 2 power sources connected with failover, graceful shutdown, and much more. Installing anything to the GPIO pins of a Pi while it is powered up is simply not a good idea and not intended to be a hot swap interface.


Share This Page

ad: Bamatech-1