CRUMB Circuit Simulator
Interactive and immersive learning
CRUMB offers an easy to use and interactive introduction to electronic circuitry. Fully realised in 3D, you can construct prototype circuits as you would at the workbench without the risk of terminal component failure or the hassle of ordering individual components. A broad selection of parts and features offers an insight into many different areas of modern electronics
Large catalogue of components
CRUMB has a varied selection of components, even at this early stage in its development. There are no limits to what circuits you can create. CRUMB includes several built-in examples which showcase some of the abilities of CRUMB. This list below highlights some of the included components
- Passives such as Resistors, Capacitors and Inductors
- Tactile, slide and DIP switches
- Semiconductors such as Diodes, BJT Transistors, MOSFETs and Silicon Controlled Rectifiers
- LEDS, Transducers, Seven Segment displays
- LCD and TFT displays
- DC Power and Signal Generators
- Large selection of Integrated Circuits ranging from Basic to Complex Logic, Timers, Counters, Memory, EEPROM and Op Amps
- Fully programmable Microcontroller
Advanced features
The latest update has expanded some of the special features included with CRUMB
Code Editor
The built-in Code Editor has been expanded to allow the viewing and editing of the Source Files that I have written for the programmable Microcontroller included in CRUMB
Hex Editor
This is an EEPROM available to use which can be programmed via circuitry (see built-in example) or values can be entered manually with the built-in hex editor
Scope Analysis
Up to 4 components can be added to the built-in scope, allowing you to view the intricacies of your circuit
Visualisation
CRUMB offers a set of different visualisations tools. You can view current and voltages in the wires, logic output at the pins of various components, highlight the pin labels and anodes of polarized components and switch off the scene lighting for dark mode
Game Discussion
Steam User 11
It's a great game. I think this could become a great game, just that development is slow because apparently there's only 1 developer.
Currently there are only a few ICs and sadly no microcontrollers except the arduino. I wish the developer would add simple 8-bit microcontrollers and s-ram, since I'd love to be able to plan things in here that I want to build in real life, since the simulation is absolutely great!
I just wanted to add that I don't understand the bad reviews. The UI is fine, the component placing is fine and the wiring is also fine, just a bit hard to create straight bends. Yeah, it could use some more content but it's a 1 man game.
Steam User 12
MAN, THIS IS PEAK. please add more stuff, like motors, sensors etc
Steam User 9
using it in my electrical course at uni. great tool to use to play around with concepts i see in my lectures. would like to see motors or something close added
Steam User 13
I have spent around 300 hours so far in CRUMB and enjoy it very much. I love being able to build and test circuits without having to worry about buying new components and bread boards. The graphics are top notch, and the electronics closely mimics real life (with some exceptions). The author is currently working on a new version with many improvements. He's says that current users will get the update free. I'm waiting with baited breath for the update.
Steam User 9
I've thrown some hours into this so I'll put in a review for it. It's good fun if you're looking for a digital circuit/logic simulator to design things in. Performance has improved enough that computers can be made now, I've spent enough time to make a couple myself. Check in the community tab for Ben Eater's 8-bit computer build and my own design. Components may be limited, but I just see that as a fun challenge.
Overall I recommend it.
Steam User 5
Awesome circuit simulator. I would definitely recommend it to tech geeks. 11/10
Steam User 6
There are numerous circuit simulators on the Internet, but none of them have the realistic 3D look of CRUMB. The real-time simulation of the circuit is exactly what you would see if you built your circuit on a real breadboard on your home work bench. The only thing the real thing has on CRUMB is that in the real world you have to handle and manipulate the components with your hands.
CRUMB is a tool for learning, just as a real electronics lab breadboard. The program is not necessarily meant to be a tutorial, although the developer has included a number of sample circuits that get you started on the road to understanding how electronic components work.
There are a lot of electronics learning publications out there, and CRUMB gives you the experience of working with 3 dimensional components to build the circuits in those publications - without the expense of buying all the components and paraphernalia for a home lab.
If you have fumbled around with some of the 2D circuit builders and simulators on line, give CRUMB a try. I highly recommend it.