![]() ![]() I have used the DUE and it runs my off grid renewable energy system, and works beautifully with CAN bus, but my intention is to go back to an AVR, and that will be the 1284p MCU. The 1284 has been considered the 'Goldie Locks' of the AVR range, in that it is not too small or not too large, just right.įreetronics here in Australia did produce a UNO sized board called the Goldilocks which had the 1284p on it.Īs GoForSmoke says, not many know that the async serial ports can be used in SPI mode if you need. The 1284 has two serial ports rather than four the 2560 has, but has more RAM than the 2560. Page is here, but you need to scroll down near half way to see the 1284 mini. The boards I selected was the 1284 mini, using a 1284p MCU. I am very impressed with the boards from one of our forum mods, Rob, AKA 'Cross Roads'. Did you know that AVR serial ports are all capable of full speed master-mode SPI? It runs SPI, I2C, RS232, RS485, 1-wire or even external parallel SRAM (has been used for other parallel devices) well. What peripherals do you mean? Baggage? Features or problems? Of course it has lots of baggage in terms of peripherals but then it was designed for that right ? ![]() Going to ARM will require circuit changes and amounts to delivering pizza in a monster truck rather than an economy car.įrankly the Mega 2560 is going cool with no issues and of course I am nowhere near its performance limits. From investment to sales, bloated costs kill profit and marketability which I guess they quit teaching a while back. For every dollar in manufacture the end price is x4 to x10. You can get knockoff Mega2560's from China for about $10 for 1. I pointed out that that 15 mins was part of a 4 hour production cycle and that he should factor the whole 15 minutes into 4 hours to figure out the real gain, 6% at best. In 89 I had a friend ask about spending major bucks on a new bleeding-edge PC to run a 15 minute process in less than 5. So the kind of idiot that over-specs and drives prices up to suit his ego and/or try to make the team look bad? ANd the moment this point is brought about the project team thinks they are being hobbyists and the game starts. ![]() Just don't be a dinousar or something on those lines. Aw why do that ? An 8 bit Arduino ? OMG.Its all about ARM nowadays guys. The moment he hears an Arduino Mega in the line up he goes. so meets up with vendors and finds out what they do. The first thing he wants to do is impress. Then the company goes and gets in a new Wiz kid from now where and right out of college. The client side project team is happy with what you deliver and they have started using it. Those Teensy's are a lot smaller IRL than the site pics.Īnd GoForSmoke asked "who thinks Mega is hobby stuff.?" Teensy 3.x are also wow but count the pin holes and pads underneath and consider if you can connect to those pads without burning up or desoldering the chip. I can't say about total current draw from the Due but guess that it's no greater than the Mega board. The Mega pins max output is 40mA, they can deliver 5V 20-25mA steady. It also has 3.3V IO pins that max output at 10mA, meaning try to use half that or less regularly. The Due certainly is faster and has more RAM. I'm not sure about the Due but it does have stereo DACs and 13-bit ADC. You can also get smaller ATmega2560 breakout boards that look more industrial for your end product or make your own if you have the skills in-house. How it is "seen"? By whom? Is it because of the connectors? The Due has the same type, they're fine for custom cables but you can desolder them and solder wires directly to the board. Is the Mega slow already with the code you have? Is your code already non-blocking, no delays or wait loops?ĭoes it have enough pins to add the 4 RF24's? ![]() I know any debug is useful but how much of details does it provide ?
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