Recently, we published an entry-level Arduino project with a single seven-segment LED display. Although it’s an amazing DIY project, we noted that most of the readers are looking for more advanced ...

#define REFRESH_RATE 100 // Assuming the refresh rate is 100Hz, time on per a LED: t_on = 1 / 400Hz = 2.5ms #define DIGIT_MASK ((1 << NUMBER_OF_DIGITS) - 1) ...

#define DHTPIN 16 // Digital pin connected to the DHT sensor int tempTens, tempOnes, tempDeciTens, tempDeciOnes, humiTens, humiOnes, humiDeciTens, humiDeciOnes; //temp and humidity variables int ...