Father, Husband, Son, Friend, Programmer, Teacher




Focused on

ARM Firmware & Assembly

Big data & Block Chain

C/C++, Objective-C, Rust, JAVA, *.js, python

FreeRTOS, Windows, Linux, Android, iOS



Developers Secrets (March, 2017) – only published 300EA

C & JAVA Practical Programming (June, 2017) – yes24, KYOBO, BANDI/LUNI’S



Any question? Email me! mynameis@hajunho.com

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