nafiesl

How to get Telegram Bot Chat ID

Create a Telegram Bot and get a Bot Token

1. Open Telegram application then search for @BotFather
2. Click Start
3. Click Menu -> /newbot or type /newbot and hit Send
4. Follow the instruction until we get message like so

   Done! Congratulations on your new bot. You will find it at t.me/new_bot.
   

Tugzrida

Prometheus Water Meter

This is a fairly involved process as it seems that no one currently makes a pre-made product that measures water usage from a household meter.

It took quite a while to set up due to WiFi issues and the flow rate code still needs some work as the output is semi-random at the moment.

If you get stuck anywhere I'm happy to answer questions provided this doesn't go viral 😂

Components:

• DFRobot Beetle ESP32 microcontroller (https://www.littlebird.com.au/products/beetle-esp32-microcontroller)
• Water meter pulse probe for the specific meter model (https://www.aquatrip.com.au/accessories is one of the only places I've found that sells them)

rxw1

<!--
  OS X launchd plist: Copy to ~/Library/LaunchAgents
  and launch with launchctl load ~/Library/LaunchAgents/org.asdflabs.screenbla.plist.
  Make sure the path to the shell script is correct.
-->

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>

andrewlkho

# The following example imports subkey DF6C5C29 into a secret keyring that 
# already contains 55C794A2

% gpg --list-secret-keys
sec   4096R/AF72A573 2012-06-17
uid                  Andrew Ho <andrewho@andrewho.co.uk>
ssb   4096R/55C794A2 2012-06-17

% mkdir 55C794A2
% cd 55C794A2

rbrooks

# Don't use FFmpeg for metadata extraction. Use FFprobe.
# Its output is geared toward parsabilty.
# Container and stream information in JSON format:
ffprobe -show_format -print_format json 'Serenity - HD Trailer.mp4'
ffprobe -show_streams -print_format json 'Serenity - HD Trailer.mp4'

# Human-readable values:
ffprobe -show_format -pretty -print_format json 'Serenity - HD Trailer.mp4'

# Trim video to first 30 seconds, without transcoding.