Notes & experiments

Hasan Unlu's Blog

Hardware, low-level software, and the occasional math detour — writing about the things I build for fun.

Writing

2026

• Apr 27

  The GOTO That Refused to Die

2024

• Aug 3

  Kronecker Product as a Subset of ConvTranspose2d

• Feb 10

  Optimizing Two-Pass Softmax Algorithm

2023

• Jun 14

  Motor Controller Software and Circuit for Dyson Vacuum Cleaner Motors

• Apr 9

  Expanding Quake's Famous Fast Inverse Square Root Algorithm

• Mar 18

  Trying to Understand Irrational Numbers Using a Rational Way

2020

• Jun 11

  Running LeNet-5 on RISC-V Micro-Controller with only 16 KBytes Memory

2019

• Jun 13

  Self-Balancing Robot Controlled with Q Learning

2018

• Aug 29

  Basic CPU Design in Xilinx Spartan 3E FPGA

• Aug 28

  Full Speed Bit-Bang I2C for RISC-V Architecture HiFive-1 uC Board

• May 8

  Basic 3D Engine in Arduino

2017

• Oct 26

  Speed of Light Measurement using TI TDC7201

• Oct 25

  Intermediate Axis Theorem