Ian Gallagher craSH

Introduction

Goodnature is a New Zealand based manufacturer of humane traps. Their model A24 trap targets Rat & Stoats. The device is triggered when a pest brushes past an activation pin. This causes the striker to activate instantly using the power of a small, replacable CO2 gas canister.

The device is also available with an optional visual counter or a Bluetooth Low Energy (BLE) enabled device and companion app, named Chirp. This gist aims to document some of the more technical details of the Goodnature A24 Chirp device (such as the BLE Services and Characteristics) which are not immediately clear from the support website.

How it works

The app requires "Always"-On location permission to detect when the user is near the trap. When near the trap, the app will then listen for BLE beacons from the Chirp.
Only one device using the app can connect to the Chirp at any time. When the device disconnects from the Chirp, it goes back to "sleep" again and must be "woken".
Because the Chirp does not have Wi

Electron Apps Causing System-Wide Lag on Tahoe

This script detects apps with not yet updated versions of Electron.

Repo: https://github.com/tkafka/detect-electron-apps-on-mac

See:

	# Adapted from https://stackoverflow.com/questions/35869985/datetime-datetime-is-not-json-serializable

	import datetime
	import json

	import boto3

	def datetime_handler(x):
	if isinstance(x, datetime.datetime):
	return x.isoformat()