# Instrumentation

**URL:** <https://discourse.nodered.org/t/instrumentation/8104>\
**Category:** General\
**Created:** [18 February 2019 15:03 UTC](https://discourse.nodered.org/t/instrumentation/8104 "2019-02-18T15:03:49Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Adao\_Branco](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/adao_branco/32/25591_2.png) [@Adao\_Branco](https://discourse.nodered.org/u/Adao_Branco)\
**Post date:** [18 February 2019 15:03 UTC](https://discourse.nodered.org/t/instrumentation/8104/1 "2019-02-18T15:03:50Z")

</div>

Hello, someone already managed on the node-red communicate via rs232 (usb) and read the temperature data in keithley 2700 and send it to a sheet (excel). Communicate via rs232 (usb) to the Infratek 106A and read the power, voltage, current and send it to a sheet (Excel).  
The problem is to get these devices to communicate via serial node red, with MatLab work perfectly, but I wanted to send the data to the Dashboard.  
In Python works with PyVisa.

Thanks.  
Adão Branco