⏱️ TimeHat & Neo M.2 GNSS Module

Welcome to the repository for TimeHat and Neo M.2, two open hardware platforms for precision timing and networking.

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🔧 TimeHat – Raspberry Pi 5 PCIe HAT for Precision Timing

The TimeHat is a Raspberry Pi 5 PCIe HAT designed to enable time-sensitive applications such as PTP (Precision Time Protocol) clients and grandmasters. It connects to the Pi 5 via an FPC PCIe interface and includes a 2.5G Ethernet NIC, GNSS capability, and multiple timing I/O options.

📌 Features

• PCIe interface via FPC to Raspberry Pi 5
• Intel I226 2.5GbE NIC
• GNSS module slot for global time synchronization
• SMA connectors for:
  • 1PPS input and output
  • 10 MHz reference input and output
• Designed for time-sensitive networking applications

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🌍 Neo M.2 – OCP-Compliant M.2 GNSS Module

The Neo M.2 board is a compact GPS module based on the u-blox Neo-M9N receiver, built to comply with the OCP M.2 Sync Specification 1.1.

📌 Features

• M.2 2242 form factor
• u-blox Neo-M9N GNSS receiver
• Designed for use in PTP-capable systems
• Open source hardware design

Reference design is available on the OCP GitHub:
👉 https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Time-Card/GNSS/UBlox/M2-NEO-M9N