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Seeding the future!

Jean Brito jeanfbrito

Seeding the future!
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ktosiek / PA profile-set astro-a50-gen4.conf
Last active August 28, 2022 05:54
Astro A50 support on Linux - basic configuration for PulseAudio 13 (tested on Ubuntu's 13.99.1). Install the files and reboot, to make sure udev and PA reloaded :-)
View PA profile-set astro-a50-gen4.conf
; /usr/share/pulseaudio/alsa-mixer/profile-sets/astro-a50-gen4.conf
auto-profiles = yes
[Mapping analog-voice]
description = Voice
device-strings = hw:%f,0,0
channel-map = left,right
paths-output = steelseries-arctis-output-chat-common
bistory / Klipper Anycubic i3 Mega
Last active February 27, 2023 19:01
Anycubic i3 Mega configuration for Klipper (with TMC2209 + SPI, BMG extruder with stock motor, pressure advance and BLTouch clone)
View Klipper Anycubic i3 Mega
# This file contains pin mappings for the Anycubic i3 Mega with
# Ultrabase from 2017. (This config may work on an Anycubic i3 Mega v1
# prior to the Ultrabase if you comment out the definition of the
# endstop_pin in the stepper_z1 section.) To use this config, the
# firmware should be compiled for the AVR atmega2560.
# See the example.cfg file for a description of available parameters.
step_pin: PF0
andywer /
Created August 21, 2018 05:03
Post Mortem: Postgres outage on 2018-08-20

2018-08-20: Postgres failure

What happened

The PostgreSQL container stopped unexpectedly, was automatically restarted, but suddenly didn't accept any connections anymore. Neither from the API service containers nor from the Macbook over the internet.

Error in logs:

FATAL:  pg_hba.conf rejects connection for host "", user "postgres", database "******", SSL off
View install phantomjs 2.1.1 - ubuntu
sudo apt-get update
sudo apt-get install build-essential chrpath libssl-dev libxft-dev -y
sudo apt-get install libfreetype6 libfreetype6-dev -y
sudo apt-get install libfontconfig1 libfontconfig1-dev -y
cd ~
export PHANTOM_JS="phantomjs-2.1.1-linux-x86_64"
sudo tar xvjf $PHANTOM_JS.tar.bz2
sudo mv $PHANTOM_JS /usr/local/share
sudo ln -sf /usr/local/share/$PHANTOM_JS/bin/phantomjs /usr/local/bin
rob-murray / find_dups.rb
Created October 27, 2015 09:59
Rails find duplicate records
View find_dups.rb
columns_that_make_record_distinct = [:some_id, :another_name]
distinct_ids ="MIN(id) as id").group(columns_that_make_record_distinct).map(&:id)
duplicate_records = Model.where.not(id: distinct_ids)
rock3m / lm35-to-thingspeak.lua
Last active March 25, 2018 00:58
Detecting the indoor temperature using LM35, and send the periodic recordings to ThingSpeak via WiFi. See project details at
View lm35-to-thingspeak.lua
--- Config
TIMEOUT = 30000000 -- 30s
--- Station modes
foosel /
Last active January 24, 2017 20:14
First experiments with NodeMCU to publish the current settings of my adjustable height working desk to MQTT

First experiments with NodeMCU to publish the current settings of my adjustable height working desk to MQTT.

NodeMCU can be found here:

Note that you'll need a current version with support for floats (which the ultrasonic sensor library utilizes), I'm using 0.9.5 2015-03-18 with float support myself.

Support for the HC-SR04 sensor in NodeMCU can be found here:

I provided my slightly adjusted version which makes measuring a non-blocking afair, allowing for callbacks when the measurement completes.

chunlea /
Last active October 5, 2021 20:03
How to use Boostrap 3 input-group in Simple Form

Finally, Simple Form support Boostrap 3. 👏

But I found it still dosen't support some components in Bootstrap 3. Or may be in the future. But I can't wait, so I find a solution to support them. It was inspired by heartcombo/simple_form#531 (comment) .

This is a final solution and I used in my project.


christopher-hopper /
Last active April 5, 2022 10:30
Resize a Hard Disk for a Virtual Machine provisioned using Vagrant from a Linux base box to run using VirutalBox.

Resize a Hard Disk for a Virtual Machine

Our Virtual Machines are provisioned using Vagrant from a Linux base box to run using VirutalBox. If the Hard Disk space runs out and you cannot remove files to free-up space, you can resize the Hard Disk using some VirtualBox and Linux commands.

Some assumptions

The following steps assume you've got a set-up like mine, where:

iksose / restAPI.markdown
Last active April 7, 2022 11:01
Creating a REST API using Node.js, Express, and MongoDB
View restAPI.markdown

###Creating a REST API using Node.js, Express, and MongoDB

####Installing Node.js

Go to, and click the Install button. Run the installer that you just downloaded. When the installer completes, a message indicates that Node was installed at /usr/local/bin/node and npm was installed at /usr/local/bin/npm. At this point node.js is ready to use. Let’s implement the webserver application from the home page. We will use it as a starting point for our project: a RESTful API to access data (retrieve, create, update, delete) in a wine cellar database.

Create a folder named nodecellar anywhere on your file system. In the wincellar folder, create a file named server.js.