I use 9 v power plug in the arduino motherboard, and then received from 5 v of motherboard &gnd L298N 5 v channel, at the same time with the 12 v channel L298N external 12 v battery, but with the motor still turn up, can hear the sound of a motor internal transfer but not external, please answer

CodePudding user response:

Is ten ErFu battery model is ten ErFu 23 a wrong

CodePudding user response:

Pick up the 12 v need not connect 5 v, 12 v to chip through a voltage chip into 5 v power supply, the 5 v interface can be output 5 v voltage for the use of an external circuit,