L298N驱动原理及电路图

0,OUTPUT);\rpinMode(speedPinA,OUTPUT);digitalWrite(dir1PinB,LOW);\rpinMode(9,OUTPUT);\rpinMode(dir1PinB,OUTPUT);digitalWrite(dir2PinB,HIGH);\r)\rvoidloop()pinMode(dir2PinB,OUTPUT);)\rpinMode(speedPinB,OUTPUT);if(millisO-time>5000){\r(time=millis();\rdigitalWrite(8,HIGH);time=millis();\rspeed=0;speed+=20;\rdigitalWrite(9,HIGH);\rdir=1;if(speed>255){\rstepper.step(50);\r)speed=0;\rdelay(500);\rstepper.step(-50);)\rif(1==dir){\rdelay(500);\rdir=O;\rstepper.step(200);\r}else{\rdelay(500);\rdir=1;\rstepper.step(-200);\rdelay(500);)\r)\r)\r?IDAimodonghttp://shop34720656.taobao.com/\r+,-.\r?/012345,67?89:?;EvaluationWarning:ThedocumentwascreatedwithSpire.PDFfor.NET.\rH 0@P`p?\rL298DualH-BridgeMotorDriverUser'sGuideHEX\rP™š›-:\r?IDAimodonghttp://shop34720656.taobao.com/\r+,-.\r?/012345,67?89:?;