Bryce Williams
basic Quadrature Encoder Library
Dependents: ESP8266_pid_mtrPos_webserver_SDcard_v2 ESP8266_pid_mtrSpeed_Webserver_SDcard ESP8266_pid_spd_and_pos_webserver_SDcard pid_encoder_speed_demo ... more
Diff: QEI.cpp
- Revision:
- 0:50aae578cb89
diff -r 000000000000 -r 50aae578cb89 QEI.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/QEI.cpp Mon Nov 23 02:44:15 2015 +0000
@@ -0,0 +1,21 @@
+#include "QEI.h"
+
+QEI::QEI(PinName encA, PinName encB): _encA(encA), _encB(encB){
+ _encA.mode(PullUp);
+ _encA.rise(this, &QEI::callback);
+
+ _encB.mode(PullUp);
+}
+
+long QEI::read(){
+ return count;
+}
+
+void QEI::reset(){
+ count = 0;
+}
+
+void QEI::callback(){
+ if(_encB) count--; // CCW count
+ else count++; // CW count
+}
\ No newline at end of file