Yocto-WatchdogDC

This device is a USB-controlled watchdog timer. When installed across a DC power cable, it can cut and restore the power whenever the control application fails to contact it.

The typical application is to power-cycle a crashed computer. As long as the control application running on the the computer contacts the device on a regular basis, the power stays on. If, for some reason, the application stops contacting the device, the power is cut for a short time. This causes the computer to reboot.

The integration of this watchdog into existing solutions is easy, thanks to the fact that it does not require any device driver. The watchdog timer can be reset either using a command line, or using a simple function call to the Yoctopuce library. The Yoctopuce library is available in for most programming languages, in source code form.

You can also use this device as a cheap solid-state relay. Please note that this device is not isolated: the output and the USB share the same ground.

This device can be connected directly to an Ethernet network using a YoctoHub-Ethernet, to a WiFi network using a YoctoHub-Wireless-n and to a GSM network using a YoctoHub-GSM.

USB cables and enclosures to be ordered separately.

CHF 24.65

Specifications¹

Hardware release:Rev. B
Product ID:WDOGDC01
Product name:Yocto-WatchdogDC
USB connector:micro-B
Width:20mm
Length:36mm
Weight:6g
Max current (Cont.):4A
Max working voltage:12V
Protection class, according to IEC 61140:class III
Normal operating temperature:5...40°C
Extended operating temperature²:-30...85°C
Supported Operating Systems:Windows (PC + IoT), Linux (Intel + ARM), macOS, Android
Drivers:Driverless, no driver needed
API / SDK / Libraries:C++ Obj-C C# VB.NET UWP Delphi Python Java Android LabVIEW
API / SDK / Libraries (TCP only):Javascript Node.js PHP
RoHS compliance:RoHS III (2011/65/UE+2015/863)
Suggested enclosure:YoctoBox-Short-Thick-Black
Harmonized tariff code:9032.9000
Made in:Switzerland


¹ These specifications are for the current hardware revision. Specifications for earlier revisions may differ.
² The extended temperature range is defined based on components specifications and has been tested during a limited duration (1h). When using the device in harsh environments for a long period of time, we strongly advise to run extensive tests before going to production.

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Downloads

	User manual (HTML)
	User manual (PDF)
	Product brief
	Blueprints
	3D file (STEP)
	RoHS certificate
	Most recent firmware	51180 (12/02/2022)
	Programming libraries	62875 (10/09/2024)
	Command line API	62875 (10/09/2024)
	VirtualHub application	62388 (09/01/2024)

Since this device is powered by USB 5V
if the USB power is off, then this device cannot operate?

@rgg : the Yocto-Watchdog-DC can be powered by both the USB connection and the power supply input.

Do you need any commands or setup?
I use "nicehash os" which only needs me to boot from a USB and it's start mining, any solution for to auto restart my PC when it crashes?

@iamnol : you'll need to write a simple piece of software that will ping the Yocto-Watchdog at regular interval: the Yocto-Watchdog causes a power cycle when it is not pinged anymore.

If the Watchdog is connected to a Micro USB Hub, where the Hub is powered separately, presumably this will be sufficient to keep the Watchdog powered as well, while the PC is power cycled from the terminal block?
Noted that the power supply also powers the Watchdog ( through the powersupply terminal?), hence the lack of electical isolation between the USB bus and the power supply terminal?
Another question, while operating in the Watchdog ping mode, can you also use the Watchdog simultaneously as a relay, by sending commands from the PC to the Watchdog to control ON/OFF of powersupply terminals as well? If yes, do you have any example scripts you can share?

@harryg: yes the Yocto-Watchdog-DC can be powered by both USB and the power source it is meant to drive, but this is not an isolated device, USB and the power source share the same ground.

Yes the Yocto-watchdog-DC can also be driven like a relay, have a look at the YWatchdog API documentation, and you'll find many functions similar to YRelay's, for instance:

www.yoctopuce.com/EN/doc/reference/yoctolib-python-EN.html#Watchdog.set_state