micro project list

here i found many about PIC and ATMEL microcontroller project. Cool site.
Lets hunt microcontroller schematic ..!!


http://my-elektronika.blogspot.com

budget plan

Do my Hobby, need some money, yes, i work at local office. goodnews, i got montly salary, but i have limited budget to build my hobby, mostly 10 USD (or 100rb 1 USD=10rb) not more than that. so can you give me information about the cheapest sparepart ? from DSA page i found the price of PIC 16f84 is 35rb and AT8051 15rb, hmm... i don't want mailed sparepart. cause i only one bought one, homebrew, i do it myself. I prefer go to local store here. Surabaya city. you can see the price at Delta electronic shop.

Var Pattern Matrix LED8x8

Visit www.Dharmanitech.com lately i found and interest project. Microproccesor, before do that i must understand how the memory work dan microcontroller programming. there are many project about matrix LED, Display Variable Pattern via 8x8 LED Matrix. Controlled by microchip PIC, ATMEL, etc.
my plan is creating an used EEPROM to display 8x8 LED, use multiplexer counter to represent 8 coloums. bob blick did that. i want make it too.

VGA to TV

I have and old PC, Pentium Zero.. hihihi.. i usualy called intel 80486 like that. run on 100Mhz compare with my laptop core is 1GHZ !!! wow far away!

My VGA monitor are blown out. i need cable converter between my PC and Television. Where i can find Paulo sergio VGA2TV Driver ? googling of course. Here Mainteain by Tomy Engdahl's site. the cheap configure are grayscale vga2tv.
becarefull it's will blow your vgacard if wrong soldering.
i did . :-p one my old vga isa card .

http://www.tkk.fi/Misc/Electronics/circuits/vga2tv/psergio_circuit.html

Volume Control 4066

Replace than old mono Variable Resistor with digital one. yes i wish i can create an digital Volume COntrol. i bought IC 4060 it's Quad Switch. use R2R Ladder to make some Bridge. For example the level is 0000 binary (all switch off) the output are 0% when all switch on (1111 binary) then the output 100%. We need some Count Up and Count DOwn IC to produce 0000..1111 binary counter. Use 40xx family IC, can use in wide voltage 3,6,12V. the PCB must not over 3x3cm (two IC) with two button, 4 LED binarycode id.

Can you figure out? What about that scheme? come on quick design it, create it and get the photo. put on your web site . then notice me on comment page :-)

Shining Star LED

Here I dedicated to my fan. How make a shining star. This scheme suitable for electro beginner, when i teen-age, a create some running, chasing 10 LED use IC 4017. it's work. and i become actdictated. next project are bicycle LED, Horse LED ( a horse? yes, feet, head, tail made from LED, wired together, lovely put on my desk).

The design of star LED is each feet (5 or 6) can light sequentially. need more than one IC 4017, or you just link in series or 5 LED. need TR to pull more power (20mA x 5 LED) better if you use Blue LED, but it's more expensive than green LED. (double price)
not yet to take pic, how about your design?

MicroController

What is MicroController, that is a small circuit that contains Processor, EEPROM, and Connection between That device with computer. It's much fun if you can controlled it act with downloaded code into it. so this section i will talk about microcontroller, There are many microcontroller, ATMEL 89c51, PIC 16F84, which one ? i think ATMEL cause the price more cheap than PIC, how about u ?