Demo - MAX7221 Interfacing - AVR Microcontroller

The ADC values are sampled every 100ms through Timer0 of ATMega8 to update the values to be displayed on 7-segment. B - Mode is utilized to print the values. uint16_t readADC3(void); uint32_t HEX2BCD (uint32_t val); void MAX7221_DISPLAY_VAL(uint32_t val);