krithin

Jitsi Meet install on a Raspberry Pi 4 with Ubuntu Server 21.04

This guide helps you host your own Jitsi server on a Raspberry Pi 4B. It is adapted from Jitsi's quick install guide and the Jitsi on ARM guide written by crouchingtigerhiddenadam. The biggest difference is this is designed to work with a Pi running Ubuntu Server 21.04 instead of Raspbian.

I did this because I'd rather set up Jitsi Meet on a Raspberry Pi I already own than add a dedicated VPS (and pay AWS's bandwidth costs) just for that. I used Ubuntu 21.04 because I'm more familiar with Ubuntu than with Raspbian, and using an arm64 OS makes the setup easier than on armhf. I also tried to use distribution packages instead of manually downloading individual deb files throughout.

Prerequisites

This guide assumes you already have a DNS name set up with an A record pointing

kmhofmann

Installing the NVIDIA driver, CUDA and cuDNN on Linux (Ubuntu 20.04)

This is a companion piece to my instructions on building TensorFlow from source. In particular, the aim is to install the following pieces of software

• NVIDIA graphics card driver (v450.57)
• CUDA (v11.0.2)
• cuDNN (v8.0.2.39)

on an Ubuntu Linux system, in particular Ubuntu 20.04.

brandoncurtis

/*
  AnalogReadSerial
  Reads an analog input on pin 0, prints the result to the serial monitor.
  Attach the center pin of a potentiometer to pin A0, and the outside pins to +5V and ground.
 
 This example code is in the public domain.
 
 Upload this to the Arduino using the Arduino IDE!
 */

electronut

"""
ldr.py

Display analog data from Arduino using Python (matplotlib)

Author: Mahesh Venkitachalam
Website: electronut.in
"""

import sys, serial, argparse

electronut

// analog-plot
// 
// Read analog values from A0 and A1 and print them to serial port.
//
// electronut.in

#include "Arduino.h"

void setup()
{

dariosalvi78

/* ADS1256 simple library for Arduino
   ADS1256, datasheet: http://www.ti.com/lit/ds/sbas288j/sbas288j.pdf
   connections to Atmega328 (UNO)

    CLK  - pin 13
    DIN  - pin 11 (MOSI)
    DOUT - pin 12 (MISO)
    CS   - pin 10
    DRDY - pin 9
    RESET- pin 8 (or tie HIGH?)

raphaelvallat

openp2pdesign

# -*- coding: utf8 -*-

from kivy.app import App
from kivy.uix.floatlayout import FloatLayout
from kivy.graphics import Line
from kivy.uix.label import Label
from kivy.core.window import Window
from kivy.clock import Clock

import serial

klanjabrik

PENDAHULUAN

Internet of Things yang bisa disebut dengan IoT menjadi bagian yang penting dalam kemajuan teknologi. Contohnya adalah dengan mengirimkan data penggunaan air dari sensor ke cloud sehingga bisa dengan mudah melihat hasilnya. Untuk mengirimkan data penggunaan air dari sensor ke cloud maka dibutuhkan internet. Sehingga jika berbicara tentang IoT maka kira berbicara tidak terlepas dari 2 hal, yaitu: sensor dan internet.

PERANGKAT KERAS YANG DIBUTUHKAN

• NodeMCU Lua WiFi (Rp85.000)
• Water Flow Sensor (Rp70.000)
• Lampu LED (Rp350)

plumbum

translate([0,0,0]) sector(30, 20, 10, 90);
translate([22,0,0]) sector(30, 20, 300, 30);
translate([0,22,0]) sector(30, 20, 30, 300);
translate([22,22,0]) sector(30, 20, 10, 190);

module sector(h, d, a1, a2) {
    if (a2 - a1 > 180) {
        difference() {
            cylinder(h=h, d=d);
            translate([0,0,-0.5]) sector(h+1, d+1, a2-360, a1);