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Assembling Muon

Before setting up Muon, ensure all necessary connections are properly made.

Required Components​

Refer to the Unboxing Guide for the full list of items included in your kit.

Configuration​

You can assemble the included components on your desk using the following simple configuration:

Simple Setup

Notes:​

  • The battery only fits in one direction. A keyed guide prevents incorrect insertion — gently align and insert. To remove, carefully pull straight back.
  • The USB-C cable is reversible. Just plug it in — no wrong way up!
  • You must connect the USB-C cable to your laptop for power and programming.
  • The cellular antenna (Salia, label #17) must be connected before power-up.
    If you're using a module with Wi-Fi/Bluetooth, the Wi-Fi/BLE antenna (label #18) should be connected as well.
  • All other accessories are optional and not needed for initial setup.

Setup Instructions​

Your initial setup focuses on:

  1. Installing the M.2 module (make sure to use the included screw post!)
  2. Connecting antennas — especially the cellular antenna
  3. Connecting the USB-C to your computer
  4. Flashing firmware and beginning development

✅ At a minimum, make sure:

  • The USB-C cable is connected to your computer
  • The SoM is installed with the screw
  • The cellular antenna is properly attached

Powering Muon​

Our onboarding diagram may show both the USB-C and battery connected, but in practice, Muon can boot and operate using just the USB-C connection.

This is useful for early development and testing before embedding it into a product or enclosure.

There are three primary power sources for Muon:

  • USB-C Port

    Connect this directly to your computer to power the board and flash firmware. It also charges the battery when the system is running.

  • LiPo Battery Connector

    A standard 3-pin connector for a LiPo battery. Not required for flashing or development, but useful for mobile operation.

  • 5V Power In (via expansion/HAT)

    Power can also be provided via a HAT or breakout board, commonly from a 12–24V supply converted down. This input can charge the battery as well.

⚠️ Important USB-C Cable Warning​

To power Muon by USB, you must use a true USB-C to USB-C connection from a USB-C port or USB-C PD power adapter.

A USB-A to USB-C cable will not work — it cannot deliver the required voltage or current.

Muon uses USB Power Delivery (PD) to request 9V and adequate current from the host. Most USB-A ports and USB-A to USB-C cables are limited to 5V and cannot deliver enough power.

Also beware of wall adapters labeled as "Raspberry Pi" power supplies — many of these only support 5V and do not support USB-C PD, making them incompatible with Muon.