| #change address from 1 to 2 | |
| sudo mbpoll -m rtu -a 1 -b 9600 -P even -d 8 -s 1 -0 -t 4:int /dev/ttyUSB0 -r 272 2 |
This Bash script is a Modbus device scanner for a serial RTU (RS-485) bus using mbpoll. It attempts to detect a Modbus-compatible device (like an Orno power meter) by cycling through common communication settings.
🔍 What it does, step-by-step: Loops over baud rates: 9600, 4800, 2400, 1200
Loops over parity settings: none, even, odd
For each combination of baud rate and parity, it:
Tries Modbus slave addresses 1 through 10
Ctrl+a – go to the start of the command line
Ctrl+e – go to the end of the command line
Ctrl+k – delete from cursor to the end of the command line
Ctrl+u – delete from cursor to the start of the command line
Ctrl+w – delete from cursor to start of word (i.e. delete backwards one word)
| #!/usr/bin/env bash | |
| # If there's already a kubeconfig file in ~/.kube/config it will import that too and all the contexts | |
| DEFAULT_KUBECONFIG_FILE="$HOME/.kube/config" | |
| if test -f "${DEFAULT_KUBECONFIG_FILE}" | |
| then | |
| export KUBECONFIG="$DEFAULT_KUBECONFIG_FILE" | |
| fi | |
| # Your additional kubeconfig files should be inside ~/.kube/config-files |
| SELECT | |
| table, | |
| formatReadableSize(sum(bytes)) AS size, | |
| min(min_date) AS min_date, | |
| max(max_date) AS max_date | |
| FROM system.parts | |
| WHERE active | |
| GROUP BY table | |
| ORDER BY sum(bytes) DESC |
All these are already installed on epyc.
kafkacat (conda install -c conda-forge kafkacat)
kt (grab it from https://github.com/fgeller/kt/releases)
kafka-* (come with kafka, if you yum install if from Confluent's repo, or via Docker if you're so inclined). Warning -- JVM based and dreadfully slow.
jq (conda install -c conda-forge jq or use your favorite package manager)
| [ | |
| { | |
| "id":"a845c14d.ab2b9", | |
| "type":"tab", | |
| "label":"Flow 1", | |
| "disabled":false, | |
| "info":"" | |
| }, | |
| { | |
| "id":"606753ef.2621fc", |
| const data = msg.payload | |
| const voltage = data[0]*0.1 | |
| const current = data[1]*0.1 | |
| const phase = data[2]*0.1 | |
| const power = data[3] | |
| const power_reactive = data[4] | |
| const power_apparent = data[5] | |
| const power_efficiency = data[6]*0.1 | |
| const total_power = (data[7] * (1 << 16) + data[8]) / 100 |
| # place in ~/.config/Code/User/settings.json | |
| { | |
| "editor.rulers": [100,117], | |
| "workbench.activityBar.visible": false, | |
| "editor.minimap.enabled": false, | |
| "workbench.statusBar.feedback.visible": false, | |
| "window.zoomLevel": 0, | |
| "breadcrumbs.enabled": true, | |
| "files.exclude": { | |
| "**/*.pyc": true |