文章链接
微信扫一扫分享
使用道具 举报
发表于 2023-5-29 10:22:47
float checkdistance_20_21() { digitalWrite(20, LOW); delayMicroseconds(2); digitalWrite(20, HIGH); delayMicroseconds(10); digitalWrite(20, LOW); float distance = pulseIn(21, HIGH) / 58.00; delay(10); return distance; } void setup(){ pinMode(20, OUTPUT); pinMode(21, INPUT); Serial.begin(9600); } void loop(){ Serial.println(checkdistance_20_21()); }复制代码
本版积分规则 回复 回帖并转播 回帖后跳转到最后一页
© 2013-2025 Comsenz Inc. Powered by Discuz! X3.4 Licensed