diff --git a/docs/reference/serial.md b/docs/reference/serial.md
index 8d8bb992..f88c8250 100644
--- a/docs/reference/serial.md
+++ b/docs/reference/serial.md
@@ -7,6 +7,7 @@ serial.writeLine("");
 serial.writeNumber(0);
 serial.writeValue("x", 0);
 serial.writeString("");
+serial.writeNumbers([0]);
 serial.readUntil(",");
 serial.readLine();
 serial.readString();
@@ -25,7 +26,8 @@ serial.readBuffer(64);
 ## See Also
 
 [writeLine](/reference/serial/write-line), [writeNumber](/reference/serial/write-number), [writeValue](/reference/serial/write-value),
-[writeString](/reference/serial/write-string), [readUntil](/reference/serial/read-until), [readLine](/reference/serial/read-line),
+[writeString](/reference/serial/write-string), 
+[writeNumbers](/reference/serial/write-numbers), [readUntil](/reference/serial/read-until), [readLine](/reference/serial/read-line),
 [readString](/reference/serial/read-string), [onDataReceived](/reference/serial/on-data-received),
 [redirect](/reference/serial/redirect), [writeBuffer](/reference/serial/write-buffer), [readBuffer](/reference/serial/read-buffer),
 [redirectToUSB](/reference/serial/redirect-to-usb)
diff --git a/docs/reference/serial/write-number.md b/docs/reference/serial/write-number.md
index 624ac459..8e73eacd 100644
--- a/docs/reference/serial/write-number.md
+++ b/docs/reference/serial/write-number.md
@@ -10,13 +10,13 @@ serial.writeNumber(0);
 
 * `value` is the [number](/types/number) to write to the serial port
 
-## Example: one through ten
+## Example: one two three
 
-This program repeatedly writes a 10-digit number to the serial port.
+This program repeatedly writes a 3-digit number to the serial port.
 
 ```blocks
 basic.forever(() => {
-    serial.writeNumber(1234567890);
+    serial.writeNumber(123);
     basic.pause(5000);
 });
 ```
@@ -37,5 +37,6 @@ basic.forever(() => {
 
 [serial](/device/serial),
 [serial write line](/reference/serial/write-line),
-[serial write value](/reference/serial/write-value)
+[serial write value](/reference/serial/write-value),
+[serial write numbers](/reference/serial/write-numbers)
 
diff --git a/docs/reference/serial/write-numbers.md b/docs/reference/serial/write-numbers.md
new file mode 100644
index 00000000..9ddf60d6
--- /dev/null
+++ b/docs/reference/serial/write-numbers.md
@@ -0,0 +1,39 @@
+# Serial Write Numbers
+
+Write an array of numbers to the [serial](/device/serial) port.
+
+```sig
+serial.writeNumbers([0, 1, 2]);
+```
+
+## Parameters
+
+* `values` is the array of [number](/types/number) to write to the serial port
+
+## Example: one two three
+
+This program repeatedly writes a 3-number array to the serial port.
+
+```blocks
+basic.forever(() => {
+    serial.writeNumbers([1, 2, 3]);
+    basic.pause(5000);
+});
+```
+
+## Example: plot temperature and light
+
+
+```blocks
+serial.writeLine("temp,light")
+basic.forever(() => {
+    serial.writeNumbers([input.temperature(), input.lightLevel()])
+})
+```
+
+## See also
+
+[serial](/device/serial),
+[serial write line](/reference/serial/write-line),
+[serial write value](/reference/serial/write-value)
+
diff --git a/libs/core/_locales/core-jsdoc-strings.json b/libs/core/_locales/core-jsdoc-strings.json
index 5eb021d7..8cdc38ed 100644
--- a/libs/core/_locales/core-jsdoc-strings.json
+++ b/libs/core/_locales/core-jsdoc-strings.json
@@ -154,7 +154,7 @@
   "control.eventValue": "Gets the value of the last event executed on the bus",
   "control.eventValueId": "Returns the value of a C++ runtime constant",
   "control.inBackground": "Schedules code that run in the background.",
-  "control.onEvent": "Raises an event in the event bus.",
+  "control.onEvent": "Registers an event handler.",
   "control.panic": "Display specified error code and stop the program.",
   "control.raiseEvent": "Raises an event in the event bus.",
   "control.raiseEvent|param|mode": "optional definition of how the event should be processed after construction (default is CREATE_AND_FIRE).",
@@ -426,6 +426,7 @@
   "serial.writeBuffer": "Sends a buffer through Serial connection",
   "serial.writeLine": "Prints a line of text to the serial",
   "serial.writeNumber": "Prints a numeric value to the serial",
+  "serial.writeNumbers": "Prints an array of numeric values to the serial as CSV",
   "serial.writeString": "Sends a piece of text through Serial connection.",
   "serial.writeValue": "Writes a ``name: value`` pair line to the serial.",
   "serial.writeValue|param|name": "name of the value stream, eg: x",
diff --git a/libs/core/_locales/core-strings.json b/libs/core/_locales/core-strings.json
index 8c24f7dc..1649ba28 100644
--- a/libs/core/_locales/core-strings.json
+++ b/libs/core/_locales/core-strings.json
@@ -343,6 +343,7 @@
   "serial.redirect|block": "serial|redirect to|TX %tx|RX %rx|at baud rate %rate",
   "serial.writeBuffer|block": "serial|write buffer %buffer",
   "serial.writeLine|block": "serial|write line %text",
+  "serial.writeNumbers|block": "serial|write numbers %values",
   "serial.writeNumber|block": "serial|write number %value",
   "serial.writeString|block": "serial|write string %text",
   "serial.writeValue|block": "serial|write value %name|= %value",
diff --git a/libs/core/serial.cpp b/libs/core/serial.cpp
index b201660a..ed3c13c2 100644
--- a/libs/core/serial.cpp
+++ b/libs/core/serial.cpp
@@ -101,7 +101,7 @@ namespace serial {
      * Sends a piece of text through Serial connection.
      */
     //% help=serial/write-string
-    //% weight=87
+    //% weight=87 blockGap=8
     //% blockId=serial_writestring block="serial|write string %text"
     void writeString(StringData *text) {
       if (!text) return;
diff --git a/libs/core/serial.ts b/libs/core/serial.ts
index beb41259..9b08fc24 100644
--- a/libs/core/serial.ts
+++ b/libs/core/serial.ts
@@ -32,6 +32,21 @@ namespace serial {
         writeString(value.toString());
     }
 
+    /**
+     * Prints an array of numeric values to the serial as CSV
+     */
+    //% help=serial-write-numbers
+    //% weight=86
+    //% blockId=serial_writenumbers block="serial|write numbers %values"
+    export function writeNumbers(values: number[]): void {
+        if (!values) return;
+        for(let i = 0; i < values.length; ++i) {
+            if (i > 0) writeString(",");
+            writeNumber(values[i]);
+        }
+        writeLine("")
+    }
+
     /**
      * Writes a ``name: value`` pair line to the serial.
      * @param name name of the value stream, eg: x
diff --git a/libs/core/shims.d.ts b/libs/core/shims.d.ts
index e54e69c8..03842d13 100644
--- a/libs/core/shims.d.ts
+++ b/libs/core/shims.d.ts
@@ -404,7 +404,7 @@ declare namespace control {
     function raiseEvent(src: number, value: number, mode?: EventCreationMode): void;
 
     /**
-     * Raises an event in the event bus.
+     * Registers an event handler.
      */
     //% weight=20 blockGap=8 blockId="control_on_event" block="on event|from %src=control_event_source_id|with value %value=control_event_value_id"
     //% help=control/on-event
@@ -800,7 +800,7 @@ declare namespace serial {
      * Sends a piece of text through Serial connection.
      */
     //% help=serial/write-string
-    //% weight=87
+    //% weight=87 blockGap=8
     //% blockId=serial_writestring block="serial|write string %text" shim=serial::writeString
     function writeString(text: string): void;
 
diff --git a/package.json b/package.json
index a93c3032..073cf372 100644
--- a/package.json
+++ b/package.json
@@ -41,6 +41,6 @@
     "semantic-ui-less": "^2.2.4"
   },
   "dependencies": {
-    "pxt-core": "0.17.13"
+    "pxt-core": "0.17.14"
   }
 }