At89c2051 Projects Info

The AT89C2051 is a classic in the world of embedded systems. As a scaled-down, 20-pin version of the legendary 8051 microcontroller, it offers a perfect balance of simplicity and power. If you’re looking to sharpen your assembly or C programming skills, this chip is a fantastic playground.

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Getting Started: The Minimal Setup

Before diving into projects, you need a working programmer and a test circuit. at89c2051 projects

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Have a great day!

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Extension: Add a push button to increment the count manually.

#define MAX_PROFILES 8
struct profile 
  uint8_t id;
  uint8_t dir_bitmap;     // P1 lower 5 bits + P3 lower 3 bits mapping
  uint8_t pullup_bitmap;
  uint8_t debounce_ms;
  uint8_t pwm_bitmap;
  uint8_t pwm_duty[3];    // up to 3 PWM channels
  uint8_t crc;
;
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