Welcome to the industry-leading solution for synchronising time across multiple devices in local and wide-scale settings. Adaptable and open-hardware-based, the product guarantees complete interoperability and maximum clock sync security.

The Open Timecard Mini provides an all-in-one, out-of-the-box solution for clock sync.

Why Open Timecard Mini?

  • Save space

    The CM4 PCIe base board makes it easy to integrate your CM4 into existing devices such as PCs or servers, saving space and simplifying your workspace.

  • Full featured

    The base board takes complete advantage of all the CM4 IO board features with the 40Pin GPIO available, 2 USB-C ports, microHDMI port eMMC boot port and a USB-A port.

  • Compatible with Sandwich boards

    Timebeat also makes sandwich boards that slot under the CM4 on the base board allowing access to be maintained to the GPIO pins, enhancing your projects further.

What's inside the Open Timecard Mini?

Build your own Open Timecard Mini

Features
1: ANT: fl IPEX-1 connector for connecting GNSS antenna input.
2: 10 Mhz: fl IPEX-1 connector for connecting stable frequency input to GNSS module
3: PPS OUT: fl IPEX-1 connector for connecting 1PPS output from GNSS module
4: PPS IN : fl IPEX-1 connector for connecting 1PPS input to GNSS module
5: 100 Pin top: Direct connection for the CM4 unit or riser board
6: 100 pin bottom: Direct connection to click straight onto a CM4 IO board or power board
7: Module A & B Hirose connectors: used to connect to Timebeat expansion modules
8: Dip Switch: used to manage the input/output configuration of the PPS Net.

In addition, the I2C interfaces are routed to the relevant GPIO pins.

(full guide https://support.timebeat.app/hc/en-gb/articles/8782340549010-Raspberry-Pi-CM4-multi-constellation-GPS-GNSS-module)

Key Features:

Effortless Integration: The TimeCard Mini Base Board is a hassle-free solution that effortlessly delivers NMEA signals and 1PPS.

Enhanced Connectivity: Equipped with two serial ports and access to the in-band Ethernet port of CM4 boards, our PCIe board ensures seamless communication and connectivity options

Integrated microSD Card: Store essential data directly on the board thanks to the integrated microSD card slot.

Versatile Software: Our free Timebeat software is compatible with both x86_64 and ARM systems. This powerful software empowers you to create grandmasters and high-accuracy clock sync clients at competitive prices, ensuring your projects remain ahead of the curve.

Industry-Approved: The TimeCard Mini Base Board is already in production and trusted by industry-leading hyper-scalers.

Perfect Pairing: For optimal results, pair the TimeCard Mini with LEA-M8F, LEA-M8S, or MAX-M10S modules. Achieve the pinnacle of performance by combining the TimeCard Mini Base Board with these recommended components.

Empower your projects with unmatched accuracy and synchronization capabilities. The TimeCard Mini Base Board is your gateway to seamless NMEA signal and 1PPS integration, all wrapped in a package trusted by industry leaders.

- Broadcom BCM2711 quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
- H.265 (HEVC) (up to 4Kp60 decode), H.264 (up to 1080p60 decode, 1080p30 encode)
- OpenGL ES 3.1, Vulkan 1.0
- Options for 1GB, 2GB, 4GB or 8GB LPDDR4-3200 SDRAM (depending on variant)
- Options for 0GB ("Lite"), 8GB, 16GB or 32GB eMMC Flash memory (depending on variant)
- Option for fully certified radio module: 2.4 GHz, 5.0 GHz IEEE 802.11 b/g/n/ac wireless;
-Bluetooth 5.0, BLE; On-board electronic switch to select either external or PCB trace antenna

Features
◼ ±1 ppb frequency stability over temperature
◼ ±0.01 ppb/°C frequency slope typical dF/dT
◼ Up to 95°C operating temperature range
◼ Up to 8 hours of holdover over 1.5 μs
◼ 420 mW power consumption – steady state
◼ 5E-12 ADEV at 10-second averaging time
◼ 2.5, 2.8, and 3.3 V supply voltages
◼ Digital frequency pulling (DCOCXO) via I2C/SPI
◼Up to ±400 ppm pull range
◼Frequency pull resolution down to 0.05 ppt (5e-14)
◼ Exceptional dynamic stability under airflow and rapid temperature changes
◼ Integrated regulators for on-chip power-supply noise filtering and excellent PSNR
◼ Resistant to shock and vibration

This smart sensor expansion module uses self-learning AI and includes a 32-bit microcontroller, 6-axis IMU, pressure, humidity, and temperature sensors, a gas sensor that can detect VOCs, VSCs, and other gases, and even a digital ambient light sensor. With the BME AI Studio software, users can develop a variety of powerful functionalities with the BME688 and BMM350 sensors.

1)BHI260AP is a self-learning AI smart sensor with integrated IMU including :
- A 32-bit programmable independent microcontroller with flash memory and open-source firmware
- A 6-axis IMU (based on MEMS technology) with
- 3-axis gyroscope
- 3-axis accelerometer


2) BME688 also has self-learning AI and a range of sensors including :
- Pressure sensor: 300-1000 hPa
- Humidity sensor: 0-100%
- Temperature sensor: -40 - 85c
- Gas sensor (this is so cool) which can detect among other things Volatile Organic Compounds (VOCs), volatile sulfur compounds (VSCs), and other gases such as hydrogen, carbon monoxide, acetone, ethanol, ethane, and isoprene; in the parts-per-billion (ppb) range.

3) BMM350 is a state-of-the-art magnetometer based on innovative tunnel magnetoresistance technology and includes a unique field shock recovery feature.


4) APDS-9306-065 is a Digital Ambient Light Sensor


- Utilises Coating Technology to Emulate Human Eye Spectral Response
- High Sensitivity in Low Lux Condition – Ideally Suited for Operation Behind Dark Glass
- Wide Dynamic Range 18,000,000 : 1
- Low Lux Performance 0.01 lux
- Up to 20-Bit Resolution


5) The BMP581 is the new benchmark in the field of barometric pressure sensors and impresses with its enormous accuracy. This enables endless and new use cases such as fitness tracking where accurate altitude change is key. The low power and low noise 24 bit absolute barometric pressure sensor significantly improved its accuracy compared to previous generations at the smallest size. It offers outstanding design flexibility, providing a single-package solution that customers can easily integrate into a multitude of existing and upcoming devices such as GPS modules, wearables, hearables, smart homes, IoT and industrial products.

Level up your Open Timecard Mini

Add support?

Time honoured solutions

built around you

  • Tech to suit your project

  • Every unit tested

  • Top performance

  • Free Software Available