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Building the Future with
Microcontrollers & Machines

STM32 projects, LinuxCNC conversions, embedded systems tutorials, and motion control engineering — from a working factory floor in Delhi, India.

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Electronics & Microcontrollers

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Cortex AIC

Technologies
Neuron Industries Cortex AIC: Python-Programmable Industrial Controller

Y Combinator-backed controller replaces ladder logic with Python and AI-powered plain-English control design.

Aug 26, 2026 · 12 min read


CNC

CNC & Machining
CNC Material Selection Guide

Aluminium, steel, titanium — feeds, speeds, and tooling for every material class.

Aug 26, 2026



SPI

Electronics
SPI Communication Protocol Guide

Clock modes, chip select, full-duplex — from basic SPI to multi-slave bus topologies.

Aug 25, 2026

Factory-Tested

Every project runs on real production equipment

Open Source

Code and designs shared freely

Hands-On

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From India

Bhiwani, Haryana — shared globally

Engineering by VKP

Virender Kumar builds open-source hardware and software projects — from custom CNC post-processors for LinuxCNC to embedded systems with STM32 and Arduino.

With 15+ years in electronics, mechatronics, and motion control, JustLast bridges the gap between factory floors and garage workshops.

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JustLast.in is an open-source engineering blog by Virender Kumar covering STM32 microcontroller projects, Arduino tutorials, LinuxCNC conversions, CNC machining guides, CAD/CAM workflows, industrial automation, servo motor and linear actuator systems, motion control engineering, embedded systems development, smart home IoT, electric vehicle technology, and solar energy projects. Based in Bhiwani, Haryana, India.