Instructables
Picture of Heart by LED (LED TRÁI TIM ĐƠN)(8051 VN)
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NOTE: CRYSTAL 30-32MHz
Components:
 - 1 IC AT89C52
 - 32 LED1
 - 32 Res 68 ohm
 - 1 Respack 8
 - 2 Cap 10uF
 - 2 Cap 33pF32
 - 1 Res 10K ohm
 - 1 button
 - 1 Xtal 30-33Mhz
Simulator & Schematic: 
 
 
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Step 1: CAPTURE

Picture of CAPTURE
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Step 2: SIMULATOR & .Hex File

Step 3: PCB LAYOUT

Picture of PCB LAYOUT