问答-
蓝牙控制两轮小车加减速的程序，新人提问，求大佬解答
keil报错，用的是蓝牙控制两轮小车加减速的程序，需要显示车速到屏幕上，程序如下//ÏÔʾpid²ÎÊýµ½OLEDÉÏvoidshowPID(void){floattemp1,temp2,temp3;charPID_P[3],PID_I[3],PID_D[3];temp1=Proportion;sprintf(PID_P,"%1.1f",temp1);OLED_ShowString(16,4,PID_P,16);temp2=Integral;sprintf(PID_I,"%1.1f",temp2);OLED_ShowString(56,4,PID_I,16);temp3=Derivative;sprintf(PID_D,"%1.1f",temp3);OLED_ShowString(104,4,PID_D,16);}报错如下：compilingpid.c.....\HARDWARE\PID\pid.c(17):warning:#167-D:argumentoftype"char*"isincompatiblewithparameteroftype"u8*"OLED_ShowString(16,4,PID_P,16);..\HARDWARE\PID\pid.c(21):warning:#167-D:argumentoftype"char*"isincompatiblewithparameteroftype"u8*"OLED_ShowString(56,4,PID_I,16);..\HARDWARE\PID\pid.c(25):warning:#167-D:argumentoftype"char*"isincompatiblewithparameteroftype"u8*"OLED_ShowString(104,4,PID_D,16);..\HARDWARE\PID\pid.c:3warnings,0errors
2022-03-11 1
