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So Im gonna try that design that Kick posted. In pictures below are components that I need. Only I dont have 470ohm resistor that is connected to the reset button. What is my alternative? I will google that. I have serial connector and max232 connected together (bought that long time ago on...
Im new in this area. I dont see controller. High voltage supply, pin drivers for those I'm not sure what they do but i dont see high voltage supply. But design on a picture few post earlier also doesnt have these but can be programed because it is At89C51RB2 and have bootloader?
Ok. So with that design on previous post I can program my AT89C51RB2, correct? Now for my other uC. I find this programmer o ebay. Here is the link: **broken link removed**
I can programmer with that my standard AT89C51?
Hi all
I have Atmel 89c51RB2-UM and AT89C51-24PI uC. Is there a way to build programmer for them? I dont wont to buy programmer just for these 3 uC because there are old.
I need huge help. I connected my RN-XV module https://www.sparkfun.com/products/10822 to board (see attachment). 4 pins from RN-XV (5V,GND,TXT,RXT) I connected to IC106(see on scheme), 5V-slot 8, GND- slot 5, TX- 1, RX- 4. Jumper J102 I switched to left position so I could use RX. When it is...
Hi
My project is to to push button and the number should be incrementing by one every time. lets say the number is 25. When I pus button it should be 26, push again it is 27. Now how to show that on virtual terminal? Only idea that I have is standard c something like:
if (button==1)
num++...
I already made one project with timer interupt and I get that. Problem is i dont understand this part with sampling input port and updating output port. And what is the K&R?
Hello, my project is to connect two 8051 and each of them have some led and buttons. Idea is to push button witch is connect to one 8051 and to turn on led or write something on lcd that is connected to other led. Master 8051 must have rx and tx pins free so on that controller pins p1.1and p1.2...
that doesn't help me with my problem. I need to to have communication from virtual terminal to lcd. When i press button on my physical keyboard it should be shown on lcd....
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