Do you know if is there a bigger alphanumeric display?
Sure there is, 40 x 4 screens are common enough.
Not a problem.I have used BuyDisplay since about 2013, and, if you don't have a problem with the shipping lag, you should be very pleased with the quality of their products. So far, I have not had a defective component or sub-assembly from them, and just ordered their development board for the 40x04 display....just out of curiosity and general boredom after a busy Summer season.If, however, you need the display yesterday...LOL...you might want to consider other suppliers. I believe that shipping to me, in Southern California, takes about 3 weeks.
That's what I was looking for, thank you!
Thats OK, it did take me a while to think what to use as a search item in Google, as in what would be a 'bigger' screen than a 20 x 4.
I've tried a lot of combinations but never 4004 ahahahh
I can understand, its not intuative that a 40 character display would be the next size up from a 20 charcater display.
Well, so far at least, 40x04 is the largest LCD character display that I've seen available to the consumer/hobbyist market. If somebody out there *is* selling something larger, I'd be interested in seeing tech specs on the hardware.I presume that, because of economic forces, and the limitations of 4-bit / 8-bit address lines, the next logical step up would actually be an LCD or OLED graphics display panel; which would, of course require more resources from the host micro-controller board.Oh....I almost forgot to mention that, as with the 40x02 displays, you WILL NOT be able to use the run-of-the-mill i2c / SPI character LCD backpack boards to simplify the addressing scheme from the controller board to the display itself. Most of those top-out at 20x04.However, Akafugu does supply an imminently capable TWILCD backpack board here:https://store.akafugu.jp/products/33TWI protocol libraries for Arduino and avr-gcc are available here:https://github.com/akafugu/twilcd