Autodesk eventually stopped updating 123D Circuits. New components (ESP32, RP2040, modern sensors) never appeared. The simulator’s Arduino core stayed at version 1.0.x. Users felt abandoned.
In 2017, Autodesk streamlined its "123D" apps. The electronics simulation portion was moved to , where it lives today as Tinkercad Circuits . 123d circuits
Because it was part of the Autodesk ecosystem, 123D Circuits offered 3D previews of the final PCB. This allowed designers to check for clearance issues between components (e.g., ensuring a tall capacitor doesn’t block a connector) before manufacturing. Autodesk eventually stopped updating 123D Circuits
Many simulators (like Tinkercad Circuits today) stay in the virtual world. 123D Circuits let you design a schematic from your working simulation, then lay out a PCB, then generate Gerber files. The handoff wasn’t perfect, but it existed – a rare all-in-one pipeline for low-cost projects. Users felt abandoned
If you are looking for 123D Circuits today, Tinkercad is where you’ll find it. The transition brought several improvements: