Keyboard and Mouse not working from 1.8.0 release on

[per1234]

Describe the problem

When using version 1.8.0 or higher of the platform, there are problems with HID functionality of the boards:

• Mouse emulation doesn't work at all on Windows machines
• Keyboard emulation doesn't work at all on Windows machines
• Keyboard emulation is incorrect on Linux machines

To reproduce

Equipment

• Any of the boards supported by the platform.

Steps

Keyboard

1. Upload the following sketch to one of the platform's boards:

   #include <Keyboard.h>
   void setup() {
     pinMode(2, INPUT_PULLUP);
     pinMode(LED_BUILTIN, OUTPUT);
     Keyboard.begin();
   }
   
   void loop() {
     if (digitalRead(2) == LOW) {
       Keyboard.print("hello");
       digitalWrite(LED_BUILTIN, HIGH);
       delay(500);
       digitalWrite(LED_BUILTIN, LOW);
       delay(500);
     }
   }

2. Open any text editor program, and give focus to the editor.
3. Connect pin 2 to ground.

🐛 If connected to a Windows machine, no text is typed.

🐛 If connected to a Linux machine, incorrect text is typed. For example:

heloooooooooooohelohelohelooooooooooooheloooooooooooohelheloheloooooooooooohelooooooooooooheloooooooooooohhelooooooooooooheloooooooooooohelooooooooooooheloooooooooooohelheloooooooooooohelohhelohelhhhelhelohhe

Mouse

1. Upload the following sketch to one of the platform's boards:

   #include <Mouse.h>
   void setup() {
     pinMode(2, INPUT_PULLUP);
     pinMode(LED_BUILTIN, OUTPUT);
     Mouse.begin();
   }
   
   void loop() {
     if (digitalRead(2) == LOW) {
       Mouse.move(0, 200);
       digitalWrite(LED_BUILTIN, HIGH);
       delay(1000);
       Mouse.move(0, -200);
       digitalWrite(LED_BUILTIN, LOW);
       delay(1000);
     }
   }

2. Connect the board to a Windows machine.
3. Connect pin 2 to ground.

🐛 The mouse pointer does not move.

Has no effect on Windows, but seems to work correctly on Linux.

Arduino SAMD Boards (32-bits ARM Cortex-M0+) version

• 1.8.0
• 1.8.1
• 284bc5a

Operating system

• Linux
• Windows

Operating system version

• Raspbian 9.4
• Ubuntu 19.04
• Windows 10 64 bit

Additional context

When compiled with version 1.6.28 or 1.6.21 of the platform, both sketches work as expected on Windows and Linux.

---

Reproduced using library versions:

• Keyboard@1.0.2
• Mouse@1.0.1

---

Reproduced with the following boards:

• MKR 1000 WiFi
• MKR Fox 1200
• MKR GSM 1400

---

Mouse emulation seems to work correctly on a Linux machine.

Additional reports

• Nano33 IoT arduino-libraries/Keyboard#41
• https://forum.arduino.cc/t/kyboard-examples-not-working-for-arduino-nano-33-iot/628340
• https://forum.arduino.cc/t/mouse-h-library-not-working-on-arduino-zero/630350
• https://forum.arduino.cc/t/i-have-a-question-about-my-mkr-zero/847762
• https://forum.arduino.cc/t/nano-33-iot-and-keyboard-library/896789
• https://forum.arduino.cc/t/arduino-zero-is-buying-it-a-mistake/957425 / Arduino Zero USB HID Broken and unusable Programing Port #663
• https://forum.arduino.cc/t/arduino-zero-joystick-arduino-zero-hid-arduino-zero-usb/1310474/14

Related

• https://github.com/arduino/ArduinoCore-samd/releases/tag/1.8.2#:~:text=Arduino%20drivers%20must%20be%20uninstalled%20so%20the%20system%20can%20recognize%20the%20new%20composite%20device

[facchinm]

I think the problems on Windows could be due to CDC Serial becoming pluggable, so the descriptor could be "reversed". About the keyboard bug I'll investigate later today. Same for Windows of course

[facchinm]

I found the culprit as commit a8d208a. Reverting looks safe but I want to investigate a bit more.

[facchinm]

The problems in windows are 2 (related):

• Arduino drivers only specify the CDC as first interface; forcing USB input device as target driver just works. The workaround only applies to Windows10 since previous versions has no CDC generic driver.
• Everything is fine if SerialUSB is the first interface. Unfortunately there's no way to tell the compiler about the instantiation order of pluggable devices.
  A new API could be added to force a pluggable module to be the first (or the last).

[pedroslopez]

any update on this?

[facchinm]

@pedroslopez are you still experiencing the issue? The main bug should be fixed on latest samd core, but the driver installation is still flawed (on win7)

[pedroslopez]

Yeah, it doesn't seem to be working for me. I'm running a test with the following code:

#include <Keyboard.h>

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
  Keyboard.begin();
}

void loop() {
  delay(5000);
  Keyboard.print("hello");
  
  digitalWrite(LED_BUILTIN, HIGH);
  delay(500);
  digitalWrite(LED_BUILTIN, LOW);
  delay(500);

}

I just took the code from the first post of this issue and removed the button. The keyboard is not writing anything. I'm using Arduino 1.8.12, Windows 10 64 bit, keyboard library 1.0.2 with an MKR1000.

[facchinm]

Ok, so your problem is likely related with drivers installation; a solution is to open Device Manager and uninstall the MKR1000 drivers; after reset, both serial and HID (keyboard) drivers should be automatically installed (thanks to windows 10). The same procedure unfortunately doesn't work on WIn7 because the serial drivers are not included in the operating system.
Let me know if it works!

[Workshopshed]

I also have problems with the keyboard not working on the Arduino MKR Zero board on Windows 10 64bit. Looking at the drivers in USBDeview, it does look like the HID device has been assigned the serial USB driver?
This is with version 1.8.5

[Workshopshed]

Swapping back to 1.6.21 fixes the issue and the HID device is hooked up correctly.

[facchinm]

Hi @Workshopshed,
when you compile the sketch with core 1.8.x the order of descriptors get reversed, so on Windows 10 (and only there) you must uninstall the drivers shipped by us for the system to correctly installs both the HID and the CDC builtin drivers. On Win7 the problem is still alive so I'm not closing the issue (and not amending the installation package either)