Interfacing the GY-US42V2 sonar

By martinm, in Reviews and Measures, july 09,2021.

At Yoctopuce, we like to buy random sensors, just to check if we can make them work with Yoctopuce hardware. This week we chose the GY-US42V2 sold by Play-Zone.ch and referenced as a "SRF02".

Test of the RFbeam K-LD2 radar sensor

By mvuilleu, in Reviews and Measures, june 04,2021.

We are always on the lookout for affordable new sensors which our customers could find useful. Among the difficult tasks, there is the remote detection of moving objects. We were therefore happy to discover a small radar sensor named K-LD2 manufactured by RFbeam.

Test of the LIDAR-Lite v4

By mvuilleu, in Reviews and Measures, april 23,2021.

We have already mentioned several sensors for the detection and distance measure of nearby objects: cheap acoustic sonars, very expensive laser telemeters, and several optical sensors in between. Among those, we hadn't yet tested the Garmin LIDAR-Lite v4.

Snooping on an RS485 bus

By mvuilleu, in Measures and Internet of Things, april 02,2021.

Some time ago, we explained how to query a MODBUS sensor with a Yocto-RS485-V2. But in some cases, you may want to monitor the measures which transit through a MODBUS communication without sending anything on the RS485 bus. It's also possible, and this is what we are going to explain today.

How to calibrate the Yocto-CO2-V2

By mvuilleu, in Measures, march 12,2021.

Several customers recently asked us whether it was possible and/or necessary to periodically caliber the Yocto-CO2-V2 to ensure measure accuracy. For the most common applications, it's not indispensable, but for some applications it can become necessary, and therefore it's possible. Let's see that in details...