Adafruit
Zero2Go Omini – Multi-Channel Power Supply for Raspberry Pi
The Zero2Go Omini is a multi-channel power supply board that sits on top of any Raspberry Pi with a 2×20 header. It accepts up to three separate power inputs...
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The Zero2Go Omini is a multi-channel power supply board that sits on top of any Raspberry Pi with a 2×20 header. It accepts up to three separate power inputs and automatically selects the one with the highest voltage, making it perfect for projects that need backup power or flexible power source options.
The on-board buck-boost converter accepts 3.5–28V DC on any input and regulates it to a clean 5V output at up to 2A — enough for larger Pi models with displays, radios, or sensors attached. An indicator LED shows blue for step-up/pass-through mode or green for step-down mode.
Key Features
- 3 Input Channels – USB Type-C port, XH 2.54 mm 2-pin connector, and SMT terminal block for bare wires
- Wide Input Range – Accepts 3.5–28V DC on all channels
- Buck-Boost Converter – Automatically steps up or steps down to regulated 5V output
- Up to 2A Output – Powers larger Pi models with accessories
- Auto Source Selection – Automatically uses the input with the highest voltage
- On-Board Microcontroller – Manages power button on/off control, UPS configuration, and LED indicators
- Configurable Software – Included software for customising power management behaviour
Compatibility
- Raspberry Pi 1, B+, Pi 2, Pi 3, Pi 4, and Pi Zero
Package Contents
- 1× Zero2Go Omini Power Supply Board
- Standoffs, screws, and spacers
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- boost converter
- A boost converter is a switching power circuit that raises a lower input voltage to a higher output voltage. It is used when a device needs more voltage than its power source provides, for example running a 5 V sensor from a 3.3 V supply.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- Terminal block
- A terminal block is a connector that joins wires together in a neat, removable, or serviceable way, usually clamping each wire under a screw or spring instead of soldering. It makes it easier to connect, change, or service wiring without permanent joints.
- 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.
- USB Type-C
- USB Type-C is a small, reversible USB connector used for power, data and sometimes video on many modern devices. The connector itself does not guarantee a particular speed or voltage, so check the supported USB version, data rate and whether it carries more than 5V via USB Power Delivery.
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Power & Batteries
Raspberry Pi
