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# A Python (3) class for more compact path handling.
#
# If you find yourself calling os.path.join() with the same first parameter
# over and over again it can get rather tedious. Instead you can now go:
#
# path = PathPrefix("/some/path")
# file1 = path / "file1"
# sub_file = path / "subdir" / "file2"

class PathPrefix(str):

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#!/usr/bin/env python3
"""Fetch and print temporary session credentials with MFA

To use this tool first put the ARN of your MFA access token into a
file called .aws_token_id in your home directory and ensure that the
tool is on your path. Then execute the command:

eval `aws-session`

You will be promoted to enter your current MFA token value. After this

nickovs

nickovs

nickovs

#!/bin/bash
# Build an AWS Lambda zip file containing git and its dependencies

cat <<\EOF > tmp_build.sh
#!/bin/bash

# Comment this out if you want to see all the actions.
quiet=-q

# List of main executables from /usr/bin to copy into layer

nickovs

#!/usr/bin/env python3
# A simply tool for receiving water meter readings from a Badger ORION water meter.
# Device radio details can be found at https://fccid.io/GIF2006B
# Requires rtl_433 to be installed. See https://github.com/merbanan/rtl_433

import sys
import json
import subprocess

nickovs

# stepper.py

# A micropython driver for 4-phase, unipolar stepper motors such as
# the 28BYJ-48

# Relesed to the Public Domain by Nicko van Someren, 2020

# The constructor for the Stepper class takes as arguments the four
# pins for driving the motor phases, in phase order, and optionally a
# timer. The pins can be passed as pin numbers or machine.Pin objects

nickovs

#!/bin/bash

# Clear out old images
[ -d "lib" ] && rm -r lib

cat <<EOF > tmp_recipe.sh
# This is the actual container-side recipe
yum groupinstall -y "Development Tools"

cd /root

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#!/usr/bin/env python3

from random import shuffle
from sys import exit, stderr
from urllib.request import urlopen
from urllib.error import URLError


urls = [
    "ifconfig.me",

nickovs

# Simple Pi Pico/RP2040 touch interface

# This implements a capacitive touch interface using two GPIO pins and just one external resistor.
# It work by using the user's body as a capacitor to ground; the output GPIO pin goes through the
# resistor to the touch point, which is connected directly to the input GPIO pin. A PIO program
# periodically toggels the output pin and then counts the number of cycles until the input pin
# changes level. The time constant for the response is proportional to both the fixed resistor
# value and the capacitance at the touch point, which varies depending on if the user is touching
# or not. With the default setting a 2.2 megaohm resistor works well.