bandaangosta

# Reading PZEM-004t power sensor (new version v3.0) through Modbus-RTU protocol over TTL UART
# Run as:
# python3 pzem_004t.py

# To install dependencies: 
# pip install modbus-tk
# pip install pyserial

import serial
import modbus_tk.defines as cst

adam-hanna

Introduction

I often find myself ssh'ing into my servers and checking my systemd service logs with $ journalctl -f -u {name}.service. One day I got tired of this and wanted all of my important logs in once place (Amazon AWS Cloudwatch). To my dismay, there weren't any real good tutorials on how to do so. So, voilà.

Steps

Overall, it's a fairly simple process consisting of the following few steps.

1. Modify the service file

Open the service file with $ sudo vi /lib/systemd/system/{name}.service

Modify the [Service] section:

mbaitelman

Automated Terraform Deployments

Requirements

• AWS Account
• AWS API User API Key/Secret
• Bitbucket Account

Setup

1. Create or update an existing Bitbucket repo
2. Open https://bitbucket.org/USERNAME/REPO/addon/pipelines/deployments

mivade

import asyncio
from pathlib import Path
from typing import Optional

from watchdog.events import FileSystemEvent, FileSystemEventHandler
from watchdog.observers import Observer


class _EventHandler(FileSystemEventHandler):
    def __init__(self, queue: asyncio.Queue, loop: asyncio.BaseEventLoop,

aspyct

# Connect to a WPA2 Enterprise network with wpa_supplicant with this .conf file.
# I used this to connect to my university's wireless network on Arch linux.
# Here's the command I used:
#
#   wpa_supplicant -i wlan0 -c ./wpa_supplicant.conf
# 

network={
  ssid="YOUR_SSID"
  scan_ssid=1

swalkinshaw

Moved to Shopify/graphql-design-tutorial

udkyo

FROM ubuntu
RUN apt update \
    && apt install -y firefox \
                      openssh-server \
                      xauth \
    && mkdir /var/run/sshd \
    && mkdir /root/.ssh \
    && chmod 700 /root/.ssh \
    && ssh-keygen -A \
    && sed -i "s/^.*PasswordAuthentication.*$/PasswordAuthentication no/" /etc/ssh/sshd_config \

jed

#!/bin/sh

aws cloudformation deploy \
  --template-file stack.yaml \
  --stack-name edge-lambda-test \
  --capabilities CAPABILITY_IAM \
  --parameter-overrides Nonce=$RANDOM

shaielc

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>

#include "HardwareSerial.h"
HardwareSerial Serial(0);

HardwareSerial::HardwareSerial(int uart_nr) : _uart_nr(uart_nr), _uart(NULL) {}
void HardwareSerial::setInterrupt(void(*arg)() )

PCreations

Source : Learn to combine RxJs sequences with super intuitive interactive diagrams

Legend

Merge

Concat