Add get speed block

libs/core/_locales/core-jsdoc-strings.json

@@ -20,6 +20,8 @@
   "input.remoteTopRight": "Remote top-right button.",
   "output.createBuffer": "Create a new zero-initialized buffer.",
   "output.createBuffer|param|size": "number of bytes in the buffer",
+  "output.getCurrentSpeed": "Get motor speed.",
+  "output.getCurrentSpeed|param|out": "the output connection that the motor is connected to",
   "output.getPattern": "Pattern block.",
   "output.getPattern|param|pattern": "the lights pattern to use. eg: LightsPattern.Green",
   "output.setLights": "Set lights.",

libs/core/_locales/core-strings.json

@@ -16,6 +16,7 @@
   "input.remoteTopLeft|block": "remote top-left",
   "input.remoteTopRight|block": "remote top-right",
   "input|block": "input",
+  "output.getCurrentSpeed|block": "motor %out|speed",
   "output.getPattern|block": "%pattern",
   "output.setLights|block": "set status light %pattern=led_pattern",
   "output.setPower|block": "set motor %out| power to %power",

libs/core/output.ts

@@ -135,6 +135,16 @@ namespace output {
         }
     }
 
+    /**
+     * Get motor speed.
+     * @param out the output connection that the motor is connected to
+     */
+    //% blockId=output_getCurrentSpeed block="motor %out|speed"
+    //% weight=70 group="Motors"
+    export function getCurrentSpeed(out: Output) {
+        return getMotorData(out).actualSpeed;
+    }
+
     /**
      * Set motor speed.
      * @param out the output connection that the motor is connected to