PICAXE Virtual System Modelling (VSM) is a software circuit simulator that combines a ‘virtual’ PICAXE chip with animated components and Berkeley SPICE circuit analysis to produce a simulation of a complete PICAXE project – and most circuits simulate in real time!
To use PICAXE VSM simply draw your circuit schematic on screen, using the automated wiring and library of over 12,000 popular analogue / digital components to build up your circuit. Add voltage/current probes to any point in the circuit, and then connect any virtual instruments (e.g. an oscilloscope) as required. Then associate your our PICAXE BASIC program to the PICAXE chip component and click ‘Run’ to watch the circuit in operation.
The on-screen output components (e.g. LEDs, motors and LCD displays) animate as the PICAXE program runs, and input device such as temperature sensors, switches and keypads can be activated by clicking on the animated model in the circuit simulation.
PICAXE VSM also provides extensive debugging facilities – the PICAXE program can be stepped through line by line, breakpoints can be set in the program, and the variable values can be displayed on screen.
Virtual instruments such as ammeters, voltmeters and oscilloscopes can be connected to any pin or wire to study the circuit operation. Voltage and current can also be highlighted by various animation options, for instance by adding ‘voltage bar graphs’ to component pins or by automatically changing the colour of wires.
PICAXE VSM also supports thousands of traditional components such as 555 timers, op-amps, CMOS & TTL logic etc. A series of electronic principles tutorials are even included free of charge! Traditional components can be simulated in circuits by themselves, or combined into a PICAXE circuit. You can also add multiple PICAXE chips to a single circuit so, for instance, two chips can communicate via RS232 serial communication.
- Berkeley SPICE and digital circuit simulation for all PICAXE chips (new M2 models now available)
- Library of over 12,000 components
- Many animated output components, including LEDs, 7 segment displays, LCDs, motors, servos, stepper motors etc
- Many animated input components including touch sensors, switches, LDRs, thermistors, digital temperature sensors, keypads, iButtons etc.
- On screen animation of voltage and current, including unlimited number of probes
- Virtual instruments include voltmeter, ammeter, oscilloscope, signal generator, logic analyser, timer, serial terminal, i2c and spi debuggers Support for all major protocols, including RS232, spi, i2c, 1-wire, etc.
- Can simulate traditional circuits (e.g. 555 timers and CMOS/TTL logic chips) as well as PICAXE circuits
- Support for multiple PICAXE chips on same design
- Serial port linking to allow software models to send/receive data from real devices over the computer's real serial/virtual USB COM port
- Support for hierarchal sub-system blocks to generate a complete project using several sub-systems
- Users can develop their own models and animations
- Export net lists for use in a dozen different PCB applications
Download and Purchase:
Click here to download a demo version of PICAXE VSM. The software will run in 'demo' mode (see the sample circuits in the demo folder) until a licence key is purchased (i.e. the same installation is used for both demo and full versions, with a licence key 'unlocking' all the features). Click here to purchase a license key online.
The licence key is non-expiring (can be used forever) and also includes one year of free updates. After one year any new updates can be supplied for a small annual renewal fee.
FAQ1: Will the software stop working after 12 months?
No, you can use the PICAXE VSM software forever. The 12 month update period is only relevant to free new ‘updates’, you can continue using the original installation as long as you like.
FAQ2: The new PICAXE chip models were released later than the real-life chips, must I buy an update?
The eligibility to new PICAXE VSM microcontroller models is based upon the approximate date of release of the real-life PICAXE chip, not the date of the release of the VSM model. So, for instance, for the X2 models you may install the X2 update (v2) if your update service was valid on 1 June 2009.
FAQ3: Where do I find my update subscription expiry date / customer number?
See the Help>About menu within the PICAXE VSM software
FAQ4: My free updates expired 6 months ago, can I still update?
Yes, you may update at any time in the 12 months following the update expiry date. You will then be eligible for the current version and any more updates within the months remaining. The update cost is £15.
FAQ5: My free updates expired over 12 months ago, can I still update?
Your original purchase was now over 2 years ago, so we would certainly recommend that you update. As your update period has elapsed you may purchase a one-off upgrade to the current version. This is the same price, £15, but does not include any future updates. If you would like to come up to date and have a further 12 month update period included please purchase two updates (£30).
FAQ6: What were the validation dates of the major releases?
If your update service was valid on (or after) the date shown below you may install that version free of charge.
||Update Service Date
||New PICAXE Parts Added
|PICAXE VSM v4.02
||1 Nov 2011
||08M2 14M2 18M2+ 20M2
|PICAXE VSM v3.00
||1 Oct 2010
|PICAXE VSM v2.00
||1 Jun 2009
||20X2 28X2 40X2
|PICAXE VSM v1.04
||1 Dec 2008