sandyjmacdonald

import time
import board

import usb_midi
import adafruit_midi

from analogio import AnalogIn
from adafruit_midi.control_change import ControlChange

# MIDI CC knob controller example for Raspberry Pi Pico

eddiewebb

Client side searching for Hugo.io with Fuse.js

• WHY
• Sample
• Setup
• Files
  • content/search.md
  • layouts/_default/search.html
  • static/js/search.js

• layouts/_default/index.json

vjousse

from sqlalchemy import create_engine
from sqlalchemy.orm import Session
from myapp.models import BaseModel
import pytest


@pytest.fixture(scope='session')
def engine():
    return create_engine('postgresql://localhost/test_database)

480

MacOS X + oh my zsh + powerline fonts + visual studio code (vscode) terminal settings

Thank you everybody, Your comments makes it better

Install oh my zsh

http://ohmyz.sh/

sh -c "$(curl -fsSL https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"

eashish93

vs Questions

---

1. http://stackoverflow.com/questions/804115 (rebase vs merge).
2. https://www.atlassian.com/git/tutorials/merging-vs-rebasing (rebase vs merge)
3. https://www.atlassian.com/git/tutorials/undoing-changes/ (reset vs checkout vs revert)
4. http://stackoverflow.com/questions/2221658 (HEAD^ vs HEAD~) (See git rev-parse)
5. http://stackoverflow.com/questions/292357 (pull vs fetch)
6. http://stackoverflow.com/questions/39651 (stash vs branch)
7. http://stackoverflow.com/questions/8358035 (reset vs checkout vs revert)

johnwargo

#!/usr/bin/python

# A simple Python application for controlling a relay board from a Raspberry Pi
# The application uses the GPIO Zero library (https://gpiozero.readthedocs.io/en/stable/)
# The relay is connected to one of the Pi's GPIO ports, then is defined as an Output device
# in GPIO Zero: https://gpiozero.readthedocs.io/en/stable/api_output.html#outputdevice

import sys
import time

savetheclocktower

Using a rotary encoder as a volume control

On my RetroPie machine I wanted a hardware volume knob — the games I play use a handful of emulators, and there's no unified software interface for controlling the volume. The speakers I got for my cabinet are great, but don't have their own hardware volume knob. So with a bunch of googling and trial and error, I figured out what I need to pull this off: a rotary encoder and a daemon that listens for the signals it sends.

Rotary encoder

A rotary encoder is like the standard potentiometer (i.e., analog volume knob) we all know, except (a) you can keep turning it in either direction for as long as you want, and thus (b) it talks to the RPi differently than a potentiometer would.

I picked up this one from Adafruit, but there are plenty others available. This rotary encoder also lets you push the knob in and treats that like a button press, so I figured that would be useful for toggling mute on and off.

devStepsize

'''
This is an example of how to send data to Slack webhooks in Python with the
requests module.
Detailed documentation of Slack Incoming Webhooks:
https://api.slack.com/incoming-webhooks

'''

import json
import requests

sebz

How to implement a custom search for Hugo usig Gruntjs and Lunrjs.

Requirements

Install the following tools:

• Nodejs
• Gruntjs

Setup

Zearin

NOTE: This is a question I found on StackOverflow which I’ve archived here, because the answer is so effing phenomenal.

---

Q: How can I make a chain of function decorators in Python?

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If you are not into long explanations, see [Paolo Bergantino’s answer][2].