Know the detailed RRB Technician Syllabus for Grade 1 & 3 posts. Check section-wise important topics, subject-wise syllabus, ...

Over on Hackaday.io, [Zoltan Pekic] has been busy building a stack of tools for assisting with verifying and debugging retro computing applications. He presents his take on using Intel hex files ...

PIC16F877A microcontroller MQ Gas Sensor (e.g., MQ-2 or MQ-135) 16x2 LCD screen (connected in 4-bit mode) Crystal oscillator (20 MHz) Potentiometer (for LCD contrast) Power source (5V regulated) ...