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Chiwai ChanBlog

Recent posts

2025

Good Times

2024

Iron Man Mark 85 Faceplate
Let’s build an Iron Man Suit with AWS IoT
AWS IoT Core – Iron Man – Part 1
Rockit Apple payslip Analyzer with GenAI Chatbot using Bedrock and Streamlit
Coming soon at a desk near you…
FeedMyFurBabies – Storing Historical AWS IoT Core MQTT State data in Amazon Timestream
FeedMyFurBabies – Send and Receive MQTT messages between AWS IoT Core and your micro-controller – I am switching from Arduino CPP to MicroPython
FeedMyFurBabies – Using Custom Resources in AWS CDK to create AWS IoT Core Keys and Certificates
FeedMyFurBabies – I am switching to AWS CDK

2023

Getting the Golden Jacket with my Cat Squad
FeedMyFurBabies – Event-Sourcing using Amazon EventBridge
4×4 fun with a bit of Iot, vlogging and Machine Learning – Part 1
Snacks

2022

Feed My Fur Babies – AWS Amplify and Route53
AWS DeepRacer
Breaking Down Monolithic Subnets
Leveraging AWS Prefix Lists
Maintain a Prefix List of EC2 Private IP Addresses using EventBridge
Work-around for cross-account Transit Gateway Security Group Reference
Swiss Cheese Network Security Factorising Security Group Rules into NACLs and Security Group Rules
Smart Cat Feeder – Part 4
Planting something….
Smart Cat Feeder – Part 3
Hosting multiple subsites under a serverless website instance

2021

If you can’t get a hold of me this is the reason…
Smart Cat Feeder – Part 2
Smart Cat Feeder – Part 1

2020

Storing Electricity Price Data on AWS
Where it all started

1999

Hello

Good Times

July 13, 2025 · One min read

Tinkerer

Good times

Good Times

Iron Man Mark 85 Faceplate

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