Yocto-amp wireless-g

Yocto-Amp Wireless-g


Combine a Yocto-Amp with a YoctoHub-Wireless-g to get an autonomous appliance with built-in network connectivity:



This device is a digital USB ammeter that allows you to measure current automatically. It can provide quite precises digital measures (2 mA, 1%). It works with direct current (DC) as well as alternating current (AC) for which it provides the RMS value (5 mA or 3%).

This device is isolated, which means that the sensing part is electrically disconnected from the USB part: you can measure any current including from the mains, without risk of frying your computer.

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The YoctoHub-Wireless-g is a wireless-enabled module that can host three Yoctopuce modules to access them remotely through a Wifi network (802.11g). It can be powered either by a USB Micro-B cable and a regular phone charger, or a 5V battery pack.

Three Yoctopuce modules can be connected directly, one of which can be fixed directly on the YoctoHub-Wireless-g and connected using a Board2Board-127 connector. More devices can be connected, thanks to the YoctoHub-Shield extension. The YoctoHub-Wireless-g can power Yoctopuce devices up to 2A.

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Manufacturer Product NumberYAMPMK01
Product name:Yocto-Amp
Hardware releaseRev. B
USB connectormicro-B
Max current (Cont.)10A
Max current (peak)17A
Refresh rate10Hz (DC)
USB bus insulation3kV
Accuracy (AC)5 mA, 3%
Accuracy (DC)2 mA, 1%
Sensitivity2 mA, 0.3%
Normal operating temperature5...40░C
Extended operating temperature-30...85░C
Power derating0.5A/░C above 67░C
Supported Operating SystemsWindows (PC + IoT), Linux (Intel + ARM), macOS, Android
Driversno driver needed
API / SDK / Libraries (USB+TCP)C++, Objective-C, C#, VB.NET, UWP, Delphi, Python, Java, Android
API / SDK / Libraries (TCP only)Javascript, Node.js, PHP
Made inSwitzerland

1These specifications are for the current hardware revision. Specifications for earlier revisions may differ.

Add a comment 2 comments

1 - evansharp Sunday,august 20,2017 18H04

How can this unit be used to measure higher amperage than 10A? Is it possible to measure 20-50A DC (~15v)?


2 - martinm (Yocto-Team)Monday,august 21,2017 5H08

@evansharp: No, but you can use a Yocto-milliVolt-Rx with a external shunt. See: www.yoctopuce.com/EN/article/transforming-the-yocto-millivolt-rx-into-a-usb-ammeter

Yoctopuce, get your stuff connected.