Accelerometer Controlled Usb Gamepad and Mouse using PIC18F2550 / PIC18F4550

78 thoughts on “Accelerometer Controlled Usb Gamepad and Mouse using PIC18F2550 / PIC18F4550”

1. alvaro August 12, 2010Reply

   very nice work…… i would like to know where can i get the others files … usb descriptors for this project? thanks

   greetings from mexico

2. André August 25, 2010Reply

   pode me enviar o arquivo HEX para o PIC18F4550?

   thanks

3. mn.code December 22, 2010Reply

   Yes, does anyone has descriptors for this project, they’re killing me….

4. starlino Post authorDecember 23, 2010Reply

   Here is full source code including gamepaddesc.asm:

   http://www.starlino.com/wp-content/uploads/data/usb_gamepad/18F2550_Gamepad.zip

5. mn.code December 24, 2010Reply

   I love you mannnn!!!!! :))))))))

6. Pete January 11, 2011Reply

   Thanks for making this available this is a very cool project. I downloaded you project source and tried to compile it with mplab using pbpw.exe as the compiler but get an error, see below.

   Any suggestions of what I may be doing wrong ?

   Thanks,

   Pete.

   ERROR: Unable to execute mpasmwin.Error[113] \PBP\PBPPIC18.LIB 715 : Symbol not previously defined (USBDeviceInit)
   Error[113] \PBP\PBPPIC18.LIB 716 : Symbol not previously defined (USBDeviceInit)
   Error[113] \PBP\PBPPIC18.LIB 715 : Symbol not previously defined (USBDeviceTasks)
   Error[113] \PBP\PBPPIC18.LIB 716 : Symbol not previously defined (USBDeviceTasks)

7. Pete January 11, 2011Reply

   I forgot to ask, what compiler version are you using ?

   I have….

   PICBASIC PRO(TM) Compiler 2.60

   Thanks.

   • starlino Post authorJanuary 12, 2011Reply

     I think I used picbasic 2.5 pro at the time, I no longer use it and switched to MPLAB with C18, C30. I have a note however here in my files: PICBASIC must be on same drive as where your project files are , for example they have to be both on C: or both on D: Also from what I recall I was using the PICBASIC IDE not MPLAB.

8. Pete January 13, 2011Reply

   ok, I have it working now:-) user error! I had the two inner pins of the usb header round the wrong way ! I have another question,if its ok. Do you know how I could get RB4-RB7 as well as RA3-RA5 and RC0-RC7 to behave in the same way as RB0-RB3.

   As you can tell I am new to this and appreciate your help.

   Thanks,

   Pete.

9. Pete January 13, 2011Reply

   I forgot to say, I down graded to picbasic pro 2.5 and it compiled first go :-)

10. starlino Post authorJanuary 13, 2011Reply

    Pete to define additional buttons you just need to make sure the pins are set to to input mode.

    For example:

    bt5 VAR PORTA.3
    TRISA.3 = 1 // button #5 connected to A3

11. Pete January 14, 2011Reply

    Starlino,

    Thanks for all your help. I have finally got a finished project. I was looking to replicate this.

    http://www.desktopaviator.com/Products/Model_2040/index.htm

    and your project was the closet I could find. I removed the accelerometer component and added 18 buttons to give a total of 20. There were a few hoops I had to jump through.

    Disabling analogue on AN0 and AN1.
    Disabling MCLR on pin one to use it as RE3.
    I also had to mod the board to add a bunch of 4.7K resistors for stability.

    I basically have what I set out to do. I could not figure out how to only have 20 buttons displayed with the HID config so I have 24, any suggestions, look at the code below for details of my changes.

    I will put a summary together and post a link here to it as soon as I get the chance.

    Pete.
    My code below.

    Define OSC 48 ’20mhz

    ‘CONFIGURATIONS ARE IN /PBP/18F2550.INC , YOU MIGHT WANT TO EDIT THEM

    ‘ turn off MCLR pin and enable RE3 by appending “‘& _MCLRE_OFF_3H” in /PBP/18F2550.INC
    ‘ the line should now look like this:
    ‘
    ‘ __CONFIG _CONFIG3H, _PBADEN_OFF_3H & _MCLRE_OFF_3H
    ‘
    ‘ In the file gamepaddesc.asm change the following to remove the accelerometer
    ‘ portion and increase the number of buttons to 20 (the max for this PIC), the section should look like this
    ‘
    ‘
    ‘ retlw 0x01 ; COLLECTION (Application)
    ‘ retlw 0x05
    ‘ retlw 0x09 ; USAGE_PAGE (Button)
    ‘ retlw 0x19
    ‘ retlw 0x01 ; USAGE_MINIMUM (Button 1)
    ‘ retlw 0x29
    ‘ retlw 0x18 ; USAGE_MAXIMUM (Button 24)
    ‘ retlw 0x15
    ‘ retlw 0x00 ; LOGICAL_MINIMUM (0)
    ‘ retlw 0x25
    ‘ retlw 0x01 ; LOGICAL_MAXIMUM (1)
    ‘ retlw 0x75
    ‘ retlw 0x01 ; REPORT_SIZE (1)
    ‘ retlw 0x95
    ‘ retlw 0x18 ; REPORT_COUNT (24)
    ‘ retlw 0x55
    ‘ retlw 0x00 ; Unit_Exponent (0)
    ‘ retlw 0x65
    ‘ retlw 0x00 ; Unit (None)
    ‘ retlw 0x81
    ‘ retlw 0x02 ; INPUT (Data,Var,Abs)
    ‘ retlw 0x81
    ‘ retlw 0x03 ; INPUT (Constant,Var,Abs)
    ‘ retlw 0xc0 ; END_COLLECTION

    ‘ADC
    DEFINE ADC_BITS 10 ‘ Set number of bits in result
    DEFINE ADC_CLOCK 6 ‘ Set clock source Fosc/64 => TAD => 1.34uS
    DEFINE ADC_SAMPLEUS 50 ‘ Set sampling time in uS

    ADCON1 = %00001111 ‘Everything digital inc, AN0 and AN1
    TRISA = %11111111 ‘PORTA is input
    TRISB = %1111111 ‘PORTB is input

    INTCON2.7=0 ‘RBPU =0 , TURN ON PORTB PULL-UPS

    ‘USB
    buffer Var Byte[3]
    USBInit

    main:

    buffer[2] = (PORTC.2 + PORTC.6*2 + PORTC.7*4 + PORTE.3*8) ^ %00001111 & %00001111 ‘buttons 17-20
    buffer[1] = (PORTA + PORTC.0*64 + PORTC.1*128) ^ %11111111 & %11111111 ‘separate and reverse first 4 bits, buttons 9-16
    buffer[0] = PORTB ^ %11111111 & %11111111 ‘separate and reverse first 4 bits, button 1-8

    USBService ‘ Must service USB regularly
    USBOut 1, buffer, 3, main ‘ Send buffer to endpoint 1

    GOTO main ‘ Do it forever

12. starlino January 14, 2011Reply

    Pete, for 20 buttons you basically need to create 4 bits of padding data (from what I recall), the “USB Complete” book has it all , you’ll find it in the Books/Tool selection or here http://astore.amazon.com/librarian06-20
    If you’re designing anything USB this is a must-have.
    “Advanced PIC Microcontroller Projects in C: From USB to RTOS with the PIC 18F Series” is also a good book and covers some USB in very easy to read language.

13. Vincent January 21, 2011Reply

    Hi!

    Very nice project.
    I just wonder if i can make it work under Windows7 somehow?

    • starlino Post authorJanuary 21, 2011Reply

      It should work under Windows 7 and many other operating systems , it’s detected as standard USB HID Gamepad so no special drivers are required.

14. Tom January 24, 2011Reply

    I have build the accelerometer wheel, but i get annoyed when in my Control Panel > Game Controllers the device gets recognized by the name of “PIC USB GAMEPAD”, if someone can show me how and where to change that name into “Drive Wheel” it will be a lot of help.
    Thank you, and awaiting your responses on my Pic Name problem issue.

    • starlino Post authorJanuary 24, 2011Reply

      this string is in USB descriptor in strings sections , if the string length modifies you might have to update some other variables with the new string length, to make it easy you can just pad the remaining space with spaces .

15. yugandhar January 25, 2011Reply

    nice one . can u please send whole project details ..i would like to try it .

16. o_0 February 11, 2011Reply

    Hi,

    The link to your ministore is not working. I would be interested in buying a preprogrammed chip.

    • starlino Post authorFebruary 11, 2011Reply

      Sorry, the pre-programmed chips are no longer available but for few extra bucks you can get the entire gamepad kit here: http://gadgetgangster.com/231

17. o_0 February 11, 2011Reply

    I’m interested in the mouse code. Is there any way you could include LCD code in it?

    I’ve been trying to do something similar on AVR with C code, the ADC of the microcontroller is responding to accelerometer inputs but there is no mouse movement. See here:
    http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&p=794724#794724

18. prathap February 15, 2011Reply

    where i can get these components and the game pad

19. shameem March 6, 2011Reply

    Pete I also am trying to do the 20 button version on pic 18f2550 but with no luck could you send me your hex as I see you’ve been successful bro Im at shinobiischilling@gmail.com

    I would really appreciate it thanks

20. tarun singhal March 12, 2011Reply

    excellent work dude
    hats off for u…..

21. yugandhar March 31, 2011Reply

    i liked u r project and i started making it .i am almost half a way ..so can u pls get complete details (like u r report on project ) it will be helpful to me. pls help me out

22. D April 9, 2011Reply

    Hi, What is the design changes I have to do if i build mouse with the PIC 18f4550?

    • starlino Post authorApril 10, 2011Reply

      no design changes for mouse device , except I guess you only need 3 buttons

23. Jean May 5, 2011Reply

    how do i configure my pc to use it as a mouse_? which steps may I do for it to be recogniced as a mouse_? thanks in advance!

24. starlino Post authorMay 5, 2011Reply

    To use it as a mouse compile the project in MPLAB:
    http://code.google.com/p/hidmouse/

    For PicBasic Pro you can use the mouse descriptor provided as sample in USB stack.

    You don’t need to do anything on PC, once you load the mouse firmware on device it will be detected as a standard HID mouse, no special drivers required.

25. Jean May 5, 2011Reply

    so I dont have to make any changes to the code? which of the files on the 18F2550_Gamepad file do I compile and how? escuse me for all this cuestions but I have not any idea on how to make it work as a mouse, I could make it work as a game pad but I dont have any idea on how to make it as a mouse could you be more especific on the steps to make it become as a mouse_?. thanks in advance

26. Jean May 5, 2011Reply

    Starlino how do I load the mouse firmware on device ?

27. Andy May 19, 2011Reply

    Hi Starlino. I’m building the gamepad using the 4550. It’s gonna have 8 buttons only (i.e 4 directional,1 select, 1 start, and 2 action buttons) I’m also looking to throw in an LED that lights up when the pad is connected to the host system. Are there any warnings on the physical design of the pad? Also, do I need the external oscillator?

28. Milan May 26, 2011Reply

    would u please provide the same code for AVR, it will be very helpful if u

29. Fernando June 24, 2011Reply

    Thanks a lot for the code!
    I’m trying to build the same thing, but using 10 bit resolution (0 to 1023 steps). I tried messing with the code but with no success. Do you have any tips?

30. Ress October 8, 2011Reply

    To Starlino,

    Hi.Just want to know,below is my altered HIDDesc.I’m learning about USB & i wanted to make a joystick with throttle,x & y axis & 6 buttons.Unfortunately it’s not working.Can you help me out.

    The HID Desc:

    ; retlw 0x05
    ; retlw 0x01 ;usage page (Generic Desktop)
    ; retlw 0x09
    ; retlw 0x04 ;usage (joystick)
    ; retlw 0xa1
    ; retlw 0x01 ;collection (application)
    ; retlw 0x05
    ; retlw 0x02 ;usage page (Simulation Controls)
    ; retlw 0x09
    ; retlw 0xbb ;usage (Throttle)
    ; retlw 0x15
    ; retlw 0x00 ;logical minimum (0)
    ; retlw 0x26
    ; retlw 0xff ;logical maximum (255)
    ; retlw 0x75
    ; retlw 0x08 ;report size (8)
    ; retlw 0x95
    ; retlw 0x01 ;report count (1)
    ; retlw 0X81
    ; retlw 0x02 ;input(data,var,abs)
    ; retlw 0x05
    ; retlw 0x01 ;usage page (Generic Desktop)
    ; retlw 0x09
    ; retlw 0x01 ;usage (pointer)
    ; retlw 0xa1
    ; retlw 0x00 ;collection (physical)
    ; retlw 0x09
    ; retlw 0x30 ;X-Axis
    ; retlw 0x09
    ; retlw 0x31 ;Y-Axis
    ; retlw 0x95
    ; retlw 0x02 ;report count (2)
    ; retlw 0x81
    ; retlw 0x02 ;input(data,var,abs)
    ; retlw 0xc0 ;end collection
    ; retlw 0x05
    ; retlw 0x09 ;usage page (button)
    ; retlw 0x19
    ; retlw 0x01 ;usage minimum (button 1)
    ; retlw 0x29
    ; retlw 0x06 ;usage maximum (button 6)
    ; retlw 0x15
    ; retlw 0x00 ;logical minimum (0)
    ; retlw 0x25
    ; retlw 0x01 ;logical maximum (1)
    ; retlw 0x75
    ; retlw 0x01 ;report size (1)
    ; retlw 0x95
    ; retlw 0x06 ;report count (6)
    ; retlw 0x81
    ; retlw 0x02 ;input (data,var,abs)
    ; retlw 0x95
    ; retlw 0x04 ;report count (4)
    ; retlw 0x81
    ; retlw 0x03 ;input (constant,var,abs)
    ; retlw 0xc0 ;end collection.

31. Sage April 23, 2012Reply

    Hi Starlino,
    Great Project. Can you upload HID mouse source code again?
    It is no longer available at google code.
    Thank you.

32. starlino Post authorApril 23, 2012Reply

    Sage: code is still there, just check, you need a SVN client program to download it.

33. Aakansh April 24, 2012Reply

    Nice project :) But I am encountering a problem:

    I made the above circuit and uploaded the .hex file (you gave above in the link) in my 18F2550. Everything is done but still when I connect it to my computer(Windows 7), it does not detect any device. Kindly advice.

    [I am using a 3-axis accelerometer(ADXL335) connecting only 2 pins of it. Is that a problem? If yes can you tell how to implement it using a 3 axis accelerometer.]

    Thanks.

34. Aakansh April 25, 2012Reply

    Hi Starlino,

    With respect to my earlier comment:

    It now shows “USB device not recognised”

    • starlino Post authorApril 29, 2012Reply

      Aakansh check your hardware to be sure hardware is ok try another firmware for same chip and see if it works

35. Sage April 27, 2012Reply

    Starlino,
    Thank you very much. I downloaded via SVN client.

36. Sage April 29, 2012Reply

    Hi Starlino,
    I programmed to 18F2550, and it works fine.
    How do I invert X direction? I would like to make pointer goes up when I raise the device.
    I appreciate your advice.
    Thank you.

    • starlino Post authorApril 29, 2012Reply

      Sage you can just flip the mounting of the device or use the configuration utility PC software to invert axis.

37. Sage April 29, 2012Reply

    Starlino,
    Sorry I mean invert Y direction (not X).

38. Sage May 4, 2012Reply

    Starlino,
    I flip mounted the accelerometer.
    Very simple, now it is working as I expected.
    Thank you for your advice.

39. Suraj May 13, 2012Reply

    Hi..

    i recenty finished this project… burned the hex file using PICpgm and a serial port programmer, but the device is not working..can u help me wat problem it might hav???

    also can u tel me if .47uf capacitor is equivalent to 470nf used here..????

    plz reply asap

40. dardard July 10, 2012Reply

    Hello
    Thanks so much for your firmware
    but i’ve got a little probleme if i let the module plug to my computer it’s only recognize if i unplug it twice or if i used the firmware of the other with gyro , ther no probleme i can let it plug , start my computer and no problem is there something to fix in your code
    Thanks

    • starlino Post authorJuly 11, 2012Reply

      dardard: did you try on a different computer. Also use USB Device View utility ( http://www.nirsoft.net/utils/usb_devices_view.html ) to review/delete inactive USB devices in system cache. They might have same VID/PID and conflict with your device.

41. dardard July 11, 2012Reply

    on an other computer it’s working , it’s strange because on this computer i remove all usb peripherical and the problem still there , i want to compil your code but i don’t use good compiler what did you use ? ( i’ll try with a pci usb card with an other chipset to see and after try to recompil by change VID/PID) thanks for your quick answer
    I use your board to a VIRTUAL PINBALL to simulate “NUDGE” that the reason why i need it recognize on the starting

    • starlino Post authorJuly 11, 2012Reply

      Sometimes when you have the PICKit programmer plugged in it might interfere with the device. Try changing the VID/PID and see if that helps. Also remove your programmer to see if this is the case. Currently I use C18 compiler from Microchip.

42. dardard July 11, 2012Reply

    I don’t have a PICKIT
    Finally i put a PCI USB CARD i now it working
    probleme resolve why need this perhaps a compatibility with my mainboard
    Thanks it works very well

43. dardard July 12, 2012Reply

    i try to compile it with mplab but with no luck
    Gamepad.o is out of date perhaps a folder acces problem
    can you compile me it with an other VID/PID please

44. dardard July 14, 2012Reply

    Finally got it compile
    It’s works with PICPRO 2.5 an MPASM 5.2
    now i try to find where i can change the PID/VID
    can you help me
    Thanks

45. dardard July 14, 2012Reply

    LOL it’s in the sotf for progamming my 18f2550

46. dardard July 14, 2012Reply

    no it’s not here if you can tell me finally lol

47. teemo July 17, 2012Reply

    Hi Starlino…
    I’m building a project where in I’ll mount the accelerometer on an RC car… wherein it acts as an impact sensor that will record the angle of the force and the force and send it to a computer or phone.

    I wish to apply your idea on how you programmed the accelerometer… and its almost near in comcept…

    well sorry for my bad english

48. dardard July 27, 2012Reply

    Now no probleme to compil great
    i just want to add a Z axis on pinout AN2
    Is it possible , i try a lot a thing but always fail
    thanks

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50. Grace July 31, 2012Reply

    Can we use MikroC to replace PBP?
    thanks

51. marcos paulo August 23, 2012Reply

    could send me the file of 18F2550
    grateful

52. starlino Post authorAugust 23, 2012Reply

    marcos:
    http://www.starlino.com/data/usb_gamepad/18F2550_Gamepad.hex

53. Sonu October 6, 2012Reply

    Hey Starlino, really great work. i want to use it as HID mouse, can you send me complete source code for it. thank you.

54. Marcos Garcia October 8, 2012Reply

    can you send me complete source code for it. thank you.

55. tejas fadadu October 22, 2012Reply

    is there any other codes which have to be loaded into the PIC chip except hex code given on your site for the usb game pad ? plz rply as soon as u can. its urgent.

    • starlino Post authorOctober 22, 2012Reply

      The hex file contains all configurations bits. So it is the only thing that needs to be loaded on the PIC.

56. yedhu November 6, 2012Reply

    hi..
    i tried to implement mouse using pic18f4550.
    i programmed the chip. when interfacing with pc it shows
    usb device unknown..
    what might be the problem

    • starlino Post authorNovember 6, 2012Reply

      yedhu: check your hardware connections. For beginners to rule out any hardware problems I recommend getting a tested hardware platform such as UsbThumb .

57. Hassan December 12, 2012Reply

    Starlino : When I try to compile your HID mouse code with MPLAB IDE 8.88, I get a syntax error on the following line

    unsigned char hid_report_in[HID_INT_IN_EP_SIZE] IN_DATA_BUFFER_ADDRESS_TAG

    Any suggestions as to what might be causing it? I have already linked the missing header and usb configuration files using the Microchip Application Libraries as a reference.

58. cnote May 27, 2013Reply

    I believe when I re-created this project about a year ago, I also had "USB device unknown" when it was plugged in.  If memory serves me, I believe the schematic above shows the D+/D- lines reversed…either that or I just reversed them myself by mistake!

     

     

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60. Alok March 21, 2015Reply

    Hey! Awesome work!
    I build one. Now I want to go further and want to make it wireless to use with my laptop. How can I do that? Please help!

61. Shiladitya JR May 8, 2015Reply

    thats really cool sir. How can we do the same thing with atmega 16?   Also what is the use of these lines:-

      'USB
    buffer    Var    Byte[3]
    USBInit

62. Amiiz April 25, 2016Reply

    Hello @starlino

    I have succed the Project the Probleme is How to Get a vibration motor / Output to Pic controller 

63. rudy September 5, 2016Reply

    Hi Starlino

    what if using ADXL335 sensor, does this work?

64. Ganesh November 24, 2016Reply

    Great project Mr.Starlino.Can I add analog joystick and 2 more buttons? great project for VR controller

65. Juris Perkons June 16, 2017Reply

    Hello!
    This place still alive? :) Anyway, I am curious as Rudy already asked, would it work with more modern ADXL335 modules? I guess it would, they also have analog outputs (but 3 axis), maybe I will just order and try.
    Another question, is there maybe successor to this project somewhere? More axis, more buttons, etc? I know "EdTracker" for axis, but would be interesting in combinations with lots of buttons :) Thanks!

66. M. Misbah July 18, 2018Reply

    Sir can I use GY273 instead of ADXL335??
    Plz help me…

67. Yasser December 4, 2020Reply

    thanks for this website (Starlin electronics)
    plies , sear
    I need a programmer to PIC18F4550 ( hex file )