Introduction - If you have any usage issues, please Google them yourself
" Seven-Segment Digital control pin map" the conditions governing the use of digital: a, section and add a decimal point limiting resistor b, the use of voltage: paragraph: According to the luminous color decision decimal point: According to the luminous color of the decision c, using the current: Static: total current of 80mA (Each 10mA) Dynamic: 4-5mA average current 100mA peak current