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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 ...

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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

Warnings!!!

  • 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

Jargon buster

Plain-language definitions for the technical terms used above.

API
An API is a software interface that lets a program control hardware or features provided by the operating system. In this product, API support matters if you want your software to adjust display settings such as brightness or contrast automatically.
GPIO
General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
Hot-swap
Hot-swap means changing or connecting a power source while the circuit is still running. It matters when you want a project to keep operating during battery changes, supply swaps, or plug-in power transitions.
I2C
I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
LED
A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
PCB
A printed circuit board is a rigid board with copper tracks that connect electronic parts without loose wires. For this kit, the PCBs also form the airplane shape, so they are both the circuit base and part of the finished model.
UPS
An uninterruptible power supply is a battery-backed power system that keeps a device running when external power is unplugged or fails. For an embedded computer, it helps prevent sudden shutdowns that can corrupt files or interrupt a project.

Related Tutorials

Free guides on learn.littlebird.com.au

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