AVR ATmega8 UART and LCD test [GCC]

http://kidscircuit.wordpress.com/2010/11/14/avr-atmega8-uart-and-lcd-test-gcc-2/
HI! This time I am going to show you something. This experiment is about connecting my PC with ATmega8 in UART mode. But this time is different than , I'm using the LCD to output the data. Actually the ATmega8 doesn't have enough I/O port, so I'm using the LCD in 4 bit mode naturally. About the UART, I used the IC MAX232 to connect my Notebook, it was because I have remained some MAX232 and I can use it directly.
So this experiment isn't very difficult, if you have the datasheet then you will build it very quickly. Enjoy this vedio~

Of coz you can go there and learn more.
http://kidscircuit.wordpress.com/2010/11/14/avr-atmega8-uart-and-lcd-test-gcc-2/

Category:

Science & Technology

Tags:

• 鏡平
• 張志杰
• 傻比杰
• 單晶片
• MCU
• AVR
• ATmega8
• LKS
• CCK
• GCC
• winavr
• Microcontrollers
• Electronics
• LCD
• UART
• USART
• MAX232

[BrentBXR]

Maybe I will send you my latest project; its a nice little AVR transistor tester. do you have an atmega328p? I can send you a free PCB and schematic. It just takes 3 standard transistors, few resistors, a 5v regulator, a trimpot, and an LCD.

[nsmvgpdf]

@BrentBXR thank you very much. although i don't have an atmega328p, but can you send me your PCB to me? I'll try to use PCB after the exam. :)

[BrentBXR]

Why the heck is there so many components and differnt boards? UART and LCD with an ATMEGA with UART takes 2(UART), 4(LCDDATA), 3(LCD CNTRL), 1?(LCD BL) so. ~10PINs . Then a MAX232 (one with internal or external caps) should only take a couple caps, couple resistors, a trimpot for contrast, a serial connector. I mean its a small circuit. I have made tons of LCD circuits and double that UART circuits. Its not tough or complicated; whats with all the boards and such? i mean one smll bb would do..

[nsmvgpdf]

@BrentBXR at that time I'm just a beginner and now i'm a high school student, so it maybe not very good, but it's a big step for me.

[BrentBXR]

@nsmvgpdf Sorry; its just i see so many of these little projects; everyone who has ever done anything in electronics feels like they need to post videos on it. and i know i dont have to watch; but i do enjoy seeing NEW things if i can find them. anyways your just in highschool then this is a great job. Keep on hacking bro, it just keeps getting more and more interesting :D endless possibilities in the hardware/software world.

[nsmvgpdf]

@BrentBXR thank you BXR, i'll keep do it well. :)

[BrentBXR]

@nsmvgpdf Nope; I cant do that. If not owning a atmega328p will slow you down then I wont waste my time sending you a pcb..... I will just have to send you the PCB and a pre-programmed atmega328p :D . I also always send the schematic, board file, and partslist with my pcbs; as you will find out. it takes the most basic of parts; so im sure you have them on hand to finish this within an hour. PM your address.

[nsmvgpdf]

@BrentBXR it was because i'm just a high school student, at that time 'm just a beginner, so it may be not good enough, but for me, is a big step for me to learn.