The Yocto-Bridge is a precision ratiometric analog/digital converter to measure over USB the very weak voltage produced by a load cell, as used in weighing scales, or any other type of strain sensor, or other sensor with a Wheatstone bridge output.
The measure is performed by a 32 bit A/D with built-in preamplifier and FIR filter, which allows for a sensitivity of a few nV/V. The device includes a built-in temperature sensor, which can be internal or external NTC, to cancel temperature drift inherent to load cells, both in offset and span. The Yocto-Bridge can also apply AC excitation to cancel thermocouple effects, and perform zero tracking for simple applications where the measured signal frequently comes back to zero.
This version includes a single ratiometric input. If you intend to build a weighing scale with four load cells, you can use the Yocto-MaxiBridge instead, which includes four ratiometric inputs.
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.
Refresh rate:2 or 7Hz
Excitation voltage:4.7V AC/DC
Protection class, according to IEC 61140:class III
Normal operating temperature:5...40Ðƒ
Extended operating temperature1:-30...85Ðƒ
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
RoHS compliance:RoHS III (2011/65/UE+2015/863)
Harmonized tariff code:9032.9000
Cables and enclosures:available separately
1 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.
Accessories and related products
|User manual (HTML)|
|User manual (PDF)|
|3D file (STEP)|
|Most recent firmware||44118 (03/10/2021)|
|Programming libraries||44175 (03/12/2021)|
|Command line API||44175 (03/12/2021)|
|VirtualHub application||44029 (02/26/2021)|
- Brand: Yoctopuce
- Product Code: YWBRIDG1