Tag: electronics

RIGOL screenshots from terminal on Arch

I've used to store screenshots from the RIGOL DS1054Z oscilloscope on the USB, which I then took out of the scope and inserted (on the third attempt obviously) into the laptop, then copied the screenshot PNG files from the USB to the target location. But it can be done much faste…

A cheap 40-pin flat cable fail

I have bought a handful of 40 pin IDC connectors for a flat cable. I wanted to use them on the cheap, colorful, no-datasheet 40-pin flat cable bought a long ago from Ebay that I had lying around. The idea was to use it to extend the Raspberry 40-pin header with a cable to tinker …

Resistors on the DIN rail

Continuing my, now semi-regular work on the cabinet wiring, I have found myself in a curious situation. The datasheet for the product contained the following schematic: The schematic demonstrates the recommended wiring between the controller, in this instance a PLC and the devic…

ModbusRTU for TouchBerry 10 pt.3

This post is a part of a series about the TouchBerry ModbusRTU autoflow issue and how have I resolved it. Other posts of the series can be found under the touchberry tag. Note that newer posts might contain more recent information. I've spent past few days fighting two things: he…

Upgrading wiringpi on Raspberry Pi 4

I have had a problem with the gpio command on Raspberry Pi 4. Checking it's version with gpio -v produced the following output: gpio version: 2.50 Copyright (c) 2012-2018 Gordon Henderson This is free software with ABSOLUTELY NO WARRANTY. For details type: gpio -warranty Raspber…