KTechLab is a graphical development environment for electronic circuits and PIC microcontrollers. It combines a schematic editor with interactive simulation, allowing users to construct circuits and observe their electrical behaviour directly on the design canvas.
The application is useful for investigating analog and digital circuits, experimenting with component characteristics, and examining the interaction between a programmed microcontroller and its surrounding electronics. It also integrates circuit design with visual programming, source editing, and debugging facilities.
This is free and open source software.
Key Features
- Graphical schematic editor with a library of electronic components, including logic gates, resistors, capacitors, diodes, and integrated circuits.
- Drag and drop components onto the design canvas, with grid snapping, rotation, and flipping controls.
- Edit component characteristics through the toolbar and Item Editor sidebar.
- Automatic and manual connector routing for creating circuit connections.
- Simulates digital logic, linear devices, reactive components, and some nonlinear electronic components.
- Real-time circuit simulation provides immediate feedback when components and connections are modified.
- Displays voltage and current measurements when hovering over pins and circuit connections.
- Visual indicators show voltage polarity and current flow, while simulated LEDs and meters provide additional feedback.
- Oscilloscope displays signals collected using voltage, current, and logic probes, with adjustable trace colours and zoom controls.
- Create reusable subcircuits with external connection pins and add them to other designs as components.
- Context-sensitive help explains electronic components and their properties.
- Integration with gpsim enables PIC microcontrollers to be simulated within electronic circuits.
- FlowCode editor constructs PIC programs graphically using flowcharts.
- Microbe compiler converts high-level PIC programs into assembly, with further conversion into hexadecimal code using gpasm.
- Integrated assembler and disassembler facilities using gpasm and gpdasm.
- Debugger supports stepping through PIC instructions, setting breakpoints, and inspecting register values.
- Supports programming compatible PIC microcontrollers using external hardware programmers.
- Project-based workflow supports multiple documents, including circuits, FlowCode, and source code.
- Export circuit diagrams and FlowCode drawings as images.
Website: github.com/ktechlab/ktechlab
Support:
Developer: Jason Lucas, Alan Grimes, Zoltan Padrah, Julian Bäume
License: GNU General Public License v2.0

KTechlab is written in C++. Learn C++ with our recommended free books and free tutorials.
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