MeterBasic is a fine program for the hobbyist who wants to generate a simple scale on occasion. MeterBasic is based on a subset of the features found in Meter. It requires no key and has no time or usage limitations. To provide an incentive to upgrade from MeterBasic to Meter, many of the features found in Meter are absent.
MeterBasic – Software for drawing analog panel meter scales – [Link]
SchemeIt | Free Online Schematic Drawing Tool | DigiKey – [via]
I just came across this: DigiKey is hosting a schematic editor as a web application, complete with PNG and PDF export, compiling a bill of materials, etc. It actually works better just running in the browser than some commercial schematic capture programs I’ve used. Now, if someone would just do this with printed circuit board layout…
SchemeIt | Free Online Schematic Drawing Tool by DigiKey – [Link]
PowerEsim- Free on-line switch mode power supply SMPS, circuit and transformer design, calculation, simulation software. More than 100 circuits and topologies are available with real constructed transformer.
It provides a virtual laboratory environment for users to wind and place every single turn of a transformer, and with the help of tens of thousands real modeled component on the market, user can simple pick and place the real component and stuff into the circuit, within a fraction of a second, our server will immediately return the result to the user. It is even faster than modifying prototype in real environment, and more than that is no worry of getting explosion of the prototype on real bench. It is Better than real.
PowerEsim – Free SMPS Switching Power Supply / Transformer Design Software – [Link]
The identification for the Amidon toroids consists of one or two letters (T=toroid and FT=ferrite toroid), followed by a number (for ex. T50), which represents the outer diameter dimension expressed in 0,1 inches, followed by a separation mark (dash, dot, stroke), followed by another number indicating the frequency mixture and the frequency range at which it would be recommended to use the toroid.
It should be taken in account that a toroid with a X declared frequency will be able to operate with fairly good performances even at 10 times higher frequencies and only the A factor will decrease.
The iron powder toroids are colored according to their mixture; the first color covers three sides and the second color the remaining side.
Simple software to calculate the air core coils, the most widely used in RF circuits and may use the software to determine the data to build a coil, knowing that the inductance of this coil. The software will give the result of how many turns will be required to achieve certain inductance value, and provides the wire diameter … In addition has a table with wires AWG mm thick.
This is the very first and I hope not the last post of this blog. With this event I want to share with you LED calculator. It is also my first project with Visual C++ Expression 2008, this software development environment is free for students.
Calculator is capable of finding suitable standard E12 (10%) resistor value and power for one LED designs. There also some tips for user to find LED forward voltage:
LED resistor calculator for windows – [Link]
Did you know each Arduino has a unique serial number in its USB interface that you can use to distinguish one Arduino from another? If you deal with multiple Arduinos, knowing exactly which one is plugged into your computer can be a real time-saver. But actually getting at this serial number and mapping it to COM ports can be challenging. For Windows computers, here’s “listComPorts”, implemented both in GCC C code and in VBScript, both available from my usbSearch github repository.
listComPorts – Windows command-line tool for USB-to-serial – [Link]
Make parts in Cadsoft Eagle @ Dangerous Prototypes – [via]
Eagle’s popularity is partly due to the sheer number of parts and footprint libraries available for it. Sometimes you can’t find the part you need in an existing library though, and it’s time to make your own. Making a new part in Cadsoft Eagle can be intimidating for new users, but the guide below shows how we make our own Eagle parts step by step.
Make parts in Cadsoft Eagle – [Link]
…starting today, I open source the complete code base of Pleasant3D:
(The slicer plugins of Pleasant3D were open source from the beginning. I’ll mark the old open source BitBucket repository as obsolete.) I’d be very happy, if some of you 3D-printing (or CNC-milling) Mac developers out there would help with the further development of Pleasant3D!
Pleasant3D is now open source – [Link]
Carl found out a way you could use TI’s Code Composer Studio IDE for free. Normally it only has a 30day evaluation period after which you have to pay $495 for the license. But by activating the Free limited license you are able to fully use it as long as you have a XDS100 based JTAG debugger, which almost all development boards for LM3s have. [via]
A quick look at the product page shows you can get a 30 day evaluation version but otherwise you will need to spend $495 per seat. Well that is unless you have a XDS100 based jtag which almost all TI’s LM3S dev kits come with! You simply activate the “Free Limited License” it’s only limit is that it will only work with XDS100 jtags, so no code or time limit.
Using Ti’s Code Composer Studio IDE for free – [Link]