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Showing posts from June, 2026

Transformers 101: What, How and Example

  Transformer Comic generated by Copilot This time we will discuss about Transformer, one of the quite recent approaches in Information Retrieval. Before we discuss more about it, we can discuss the approaches before Transformer as a flash back: BM25

Who am I? Throwing back to my past for the sake of my future.

I have been craving for robotics since I was a kid. However, I couldn't afford it due to many things and needed to focus my self up for working, teaching, and earning some extra for my life and my family. Growing up from middle to low income taught me not to focus on my self, I even was confused when people asked me what was my hobby about. But, yeah, having limited access to financial is actually become my priviledge as well. I am a person who has a lot to think about. I can flash out in a mili second with anything crossing my mind. It is interesting with or without caffeine, my mind is very crowded and noisy. Thus, living with others is actually not very beneficial for me because my brain bandwidth will somehow stretched and overwhelmed. To encounter that problem, I choose to live independently from my parents, colleagues, and even neighbors.  I thought, my interpersonal skills was not developed properly, or probably I am an introverted person, yes it might be like that, however,...

Smart Bin Project 101: Intro to Robotic with ESP32

This is one of my blog post without using GenAI to help with grammar and such. I know, I did some research using tools, but writing this post, I am doing my best use my all fingers to type the words one by one.  So in this post, I will talk about ESP32. This is a tool that can be used for beginner who are interested in doing coding and robotic in a cheap way. In Indonesia it self, I bought the kit, available on an e-commerce, it was only Rp200.000 or about $20.  To make a Smart Bin like in the picture above, we only need 3 tools, and some materials. They are: Tools we need: ESP32 as the main character, as the brain of the computer Servo SG90, as the motor that will move the bin lead to up and down HC-SRO4 as the movement sensor, look like eyes, but they are distance sensor, will make it read if <20cm, the lid opens. ESP32 Servo S90   HC-SRO4 Materials we need: A coffee cup Tape Some cable jumper (you'll get it in the package if you buy the kit) USB Cable for uploading ...