jim hamblen / Mbed 2 deprecated ESC_DC_Brushless_motor_test

Runs an RC Brushless DC motor using with an ESC module. Mbed supplies the PWM control signal for the ESC. See https://developer.mbed.org/users/4180_1/notebook/using-a-dc-brushless-motor-with-an-rc-esc/ for more info

Dependencies:   Servo mbed

Files at this revision

API Documentation at this revision

Revision 0:378b1492eaf6, committed 2017-05-14

Comitter:
4180_1
Date:
Sun May 14 12:38:56 2017 +0000
Commit message:
ver 1.0

Changed in this revision

Servo.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Servo.lib	Sun May 14 12:38:56 2017 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/simon/code/Servo/#36b69a7ced07

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun May 14 12:38:56 2017 +0000
@@ -0,0 +1,44 @@
+// Calibrate and arm ESC and then sweep through motor speed range
+// To run: Hold down reset on mbed and power up ESC motor supply
+// Wait for three power up beeps from ESC, then release reset (or apply power) on mbed
+// See https://github.com/bitdump/BLHeli/blob/master/BLHeli_S%20SiLabs/BLHeli_S%20manual%20SiLabs%20Rev16.x.pdf
+// for info on beep codes and calibration
+#include "mbed.h"
+#include "Servo.h"
+PwmOut ledf(LED1); //throttle up test led with PWM dimming
+PwmOut ledr(LED2); //throttle down test led with PWM dimming
+
+Servo myservo(p21);
+
+int main()
+{
+    myservo = 0.0;
+    ledf = ledr = 1;
+    wait(0.5); //ESC detects signal
+//Required ESC Calibration/Arming sequence  
+//sends longest and shortest PWM pulse to learn and arm at power on
+    myservo = 1.0; //send longest PWM
+    ledf = ledr = 0;
+    wait(8);
+    myservo = 0.0; //send shortest PWM
+    wait(8);
+//ESC now operational using standard servo PWM signals
+    while (1) {
+        for (float p=0.0; p<=1.0; p += 0.025) { //Throttle up slowly to full throttle
+            myservo = p;
+            ledf = p;
+            wait(1.0);
+        }
+        myservo = 0.0; //Motor off
+        ledf = ledr = 0;
+        wait(4.0);
+        for (float p=1.0; p>=0.0; p -= 0.025) { //Throttle down slowly from full throttle
+            myservo = p;
+            ledr = p;
+            wait(1.0);
+        }
+        myservo = 0.0; //Motor off
+        ledf = ledr = 0;
+        wait(4.0);
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sun May 14 12:38:56 2017 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/e2ac27c8e93e
\ No newline at end of file