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AT89Sxx Cheap and Simple Learning Board

Figure1: Complete hardware schematics: MCU, and power supply Tuesday, August 18th, 2009  »  Posted By  »  Total 29 Comments

Build your own a cheap simple Microcontroller learning board S-52. The board is based on ATMEL’s new ISP chip AT89S51, AT89S52, or AT89S53. This board can be used by beginners for learning Assembly and C language programming. Single sided PCB file included. Introduction I have designed this leaning board to be used as a tool [...]

“JavaBot” LINE FOLLOWER ROBOT from Java, Indonesia

The line follower robot with wireless video camera. Tuesday, August 18th, 2009  »  Posted By  »  Total 62 Comments

I have designed it just for fun. First I want to know how the line sensor work. I used comparator IC using LM339, two H-bridge sensor using eight transistors, FCS9013, and four transistors, FSC 9012. For the sensor you can use LED and LDR as the light receiver. I changed the LDR sensor to IR [...]

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