![]() ![]() A connector to directly power it from a battery would have been great for projects like that.Īn SMPS also has the big advantage that it decouples spikes from the external power supply and wiring. Now you see boards from beginners which attempt to make a battery powered circuit with multiple batteries in series to generate 8V or so just to make the wastefull linear voltage regulator happy. It would have made it possible to use the arduino boards with any DC voltage between a few volts and 30V or so. The boards are certainly expensive enough for that. “arduino” works with power from an USB port, but why not throw in a simple SMPS circuit. Unreliable communication with a CNC machine is not nice, to say the least…Ĥ). Even on vlachoudis/bCNC for example they state that you may have occasional communication problems with even official arduino boards. ![]() UART has an error budget of around 2% and the 16MHz crystal eats up more than half of that. Choice of crystal: 16MHz is a bad crystal choice for uC’s if you want to use the UART for communicating with a PC. For most projects it’s irrelevant, but for other projects it is very annoying.įor example look at Adafruits “pinmmagic.h”, where they had to go through extreme horrors just to make TFT lcd’s work with different arduino variants.ģ). It does not have a decent 8-Bit port (without sacrificing the UART). Something like this for uC development boards would be great.Ģ). It’s a relatively small connector with different mounting hole locations for different size boards. It makes it impossible to make smaller boards in a compatible format. a wide board with connectors around the outer edges is a bad design. A (small) connector or screw hole on the opposite site is a plus. You can also place a break-out board with a mating connector directly on top of it. And with custom IDC connectors you can connect it to about anything else you want. You can easily place them next to a breadboard, so the breadboard stays free for the rest of the project. The best I can think of is a 2-row IDC connector for all signals. I’ve thought long and hard about connectors for “universal” development boards. The boards: A board for beginners that does not fit on a bredboard, and has some of the pins offset by 0.1″ makes it very inconvenient to make a quick addon board on Veroboard. Please interpret the rant as room for improvement, not as a hate speach.ġ). “Arduino” has a lot going for it, no doubt about that. Posted in Arduino Hacks Tagged arduino, Arduino libraries, sparkfun Post navigation Sometimes it makes sense to port something over instead of starting from scratch. Of course, you also need a great idea for a library or an improved library that doesn’t already exist. If you add their advice to the official style guide, you should be well on your way to creating really great Arduino libraries. For example, the use of default parameters and the order of parameters. However, a lot of the advice is very subtle but important. In the old days, writing terse code might lead to higher efficiency, but with modern compilers, you ought to get a tight final result even when doing things in a pretty verbose fashion. They also suggest making code as readable as possible, which is usually good advice. For example, they always use the serial port at 115,200 baud, but they do note that 9,600 baud is also popular. Of course, as you might expect, some of this is a matter of opinion, and admits that. There is an official style guide, but a recent post by from Sparkfun points out lessons learned from writing more libraries than most people. Writing a great library that everyone can easily use takes a little forethought. On the other hand, it is also an ecosystem in which many different boards and libraries can be supported. ![]() ![]() On the one hand, it is a simple environment where you can just pick and choose a few libraries, write a few lines of code, and make lots of interesting things. The Arduino IDE has a bit of a split personality. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |