[Clock Dongle] a USB Real-Time Clock, Current Time Sync., Battery Backup
- SKU:
- 319
- Manufacturer:
- Tokyo Devices
- Model Number:
- TDPC0205
- EAN:
- 4560457401004
- Released on:
- Jan 2024
- Category:
- PC peripherals
The "Clock Dongle" is a simple Real-Time Clock (RTC) that allows you to obtain the current time via USB. It is used in conjunction with computers that do not have their own clocks, such as Raspberry Pi.
Features
- A USB real-time clock with a simple clock function.
- You can set and retrieve the time on Windows/Linux.
- The internal lithium battery ensures that the time is preserved even if the power is cut.
Specifications
| Item | Value |
|---|---|
| Supported OS | Windows 7 and later / Linux |
| Settable Time Range | Year: 00-99, Month: 01-12, Day: 01-31, Hour: 00-23, Minute: 00-59, Second: 00-59 |
| Leap Year Calculation | Yes |
| Accuracy | <20ppm |
| USB Standard | USB 2.0 |
| USB Connector Type | USB Type A |
| Battery Life | > 5 years (Room temperature, Design value) |
| Battery | CR2032 (Built-in, Not recommended for replacement) |
How to Use
The Clock Dongle is operated using the standard control command TD-USB. TD-USB is a command-line program that works on Windows and Linux.
- Install TD-USB in advance and prepare it to be executed from the command line (see resources below).
- Connect the Clock Dongle to your computer.
- Enter
td-usb tdpc0205 setin the command line to set the current time on the device. - Enter
td-usb tdpc0205 getin the command line to confirm that the current time is output to the standard output. Example:2024-01-24T12:34:56
If you want to use it for time synchronization with a Raspberry Pi, you can refer to Using TDPC0205 (Clock Dongle) as a Time Source for Raspberry Pi (in Japanese).
