Github<\/a>.<\/p>\n\n\n\nUser Experience<\/h2>\n\n\n\n To maximize the purpose of the hardware I decided to have 3 different configurations. I coded it such that they are available at any time without needing to re-download code in the microcontroller. The configurations are selected at startup (press a button while plugging the USB).<\/p>\n\n\n\n
1- Acting as a Joystick (default)<\/p>\n\n\n\n
Descriptor :\n 0x05, 0x01, \/\/ USAGE_PAGE (Generic Desktop)\n\t\t0x09, 0x05, \/\/ USAGE (Game Pad)\n\t\t0xa1, 0x01, \/\/ COLLECTION (Application)\n\t\t0xa1, 0x00, \/\/ COLLECTION (Physical)\n\t\t0x05, 0x01, \/\/ USAGE_PAGE (Generic Desktop)\n\t\t0x09, 0x30, \/\/ USAGE (X)\n\t\t0x09, 0x31, \/\/ USAGE (Y)\n\t\t0x15, 0x81, \/\/ LOGICAL_MINIMUM (-127)\n\t\t0x25, 0x7f, \/\/ LOGICAL_MAXIMUM (127)\n\t\t0x75, 0x08, \/\/ REPORT_SIZE (8)\n\t\t0x95, 0x02, \/\/ REPORT_COUNT (2)\n\t\t0x81, 0x02, \/\/ INPUT (Data,Var,Abs)\n\t\t0x05, 0x09, \/\/ USAGE_PAGE (Button)\n\t\t0x19, 0x01, \/\/ USAGE_MINIMUM (Button 1)\n\t\t0x29, 0x04, \/\/ USAGE_MAXIMUM (Button 4)\n\t\t0x15, 0x00, \/\/ LOGICAL_MINIMUM (0)\n\t\t0x25, 0x01, \/\/ LOGICAL_MAXIMUM (1)\n\t\t0x75, 0x01, \/\/ REPORT_SIZE (8)\n\t\t0x95, 0x08, \/\/ REPORT_COUNT (1)\n\t\t0x81, 0x02, \/\/ INPUT (Data,Var,Abs)\n\t\t0xc0, \/\/ END_COLLECTION\n\t\t0xc0 \/\/ END_COLLECTION<\/code><\/pre>\n\n\n\n2- Acting as a Mouse (Press button 1 at startup to be detected as a Mouse)<\/p>\n\n\n\n
Descriptor:\n 0x05, 0x01, \/\/ Usage Page (Generic Desktop Ctrls)\n\t\t0x09, 0x02, \/\/ Usage (Mouse)\n\t\t0xA1, 0x01, \/\/ Collection (Application)\n\t\t0x09, 0x01, \/\/ Usage (Pointer)\n\t\t0xA1, 0x00, \/\/ Collection (Physical)\n\t\t0x05, 0x09, \/\/ Usage Page (Button)\n\t\t0x19, 0x01, \/\/ Usage Minimum (0x01)\n\t\t0x29, 0x03, \/\/ Usage Maximum (0x03)\n\t\t0x15, 0x00, \/\/ Logical Minimum (0)\n\t\t0x25, 0x01, \/\/ Logical Maximum (1)\n\t\t0x95, 0x03, \/\/ Report Count (3)\n\t\t0x75, 0x01, \/\/ Report Size (1)\n\t\t0x81, 0x02, \/\/ Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)\n\t\t0x95, 0x01, \/\/ Report Count (1)\n\t\t0x75, 0x05, \/\/ Report Size (5)\n\t\t0x81, 0x01, \/\/ Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)\n\t\t0x05, 0x01, \/\/ Usage Page (Generic Desktop Ctrls)\n\t\t0x09, 0x30, \/\/ Usage (X)\n\t\t0x09, 0x31, \/\/ Usage (Y)\n\t\t0x09, 0x38, \/\/ Usage (Wheel)\n\t\t0x15, 0x81, \/\/ Logical Minimum (-127)\n\t\t0x25, 0x7F, \/\/ Logical Maximum (127)\n\t\t0x75, 0x08, \/\/ Report Size (8)\n\t\t0x95, 0x03, \/\/ Report Count (3)\n\t\t0x81, 0x06, \/\/ Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)\n\t\t0xC0, \/\/ End Collection\n\t\t0x09, 0x3C, \/\/ Usage (Motion Wakeup)\n\t\t0x05, 0xFF, \/\/ Usage Page (Reserved 0xFF)\n\t\t0x09, 0x01, \/\/ Usage (0x01)\n\t\t0x15, 0x00, \/\/ Logical Minimum (0)\n\t\t0x25, 0x01, \/\/ Logical Maximum (1)\n\t\t0x75, 0x01, \/\/ Report Size (1)\n\t\t0x95, 0x02, \/\/ Report Count (2)\n\t\t0xB1, 0x22, \/\/ Feature (Data,Var,Abs,No Wrap,Linear,No Preferred State,No Null Position,Non-volatile)\n\t\t0x75, 0x06, \/\/ Report Size (6)\n\t\t0x95, 0x01, \/\/ Report Count (1)\n\t\t0xB1, 0x01, \/\/ Feature (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)\n\t\t0xC0, \/\/ End Collection\n<\/code><\/pre>\n\n\n\n3- Acting as a simple keyboard mostly targetted for CNC control (Page UP\/DOWN are used for the Z axis and Left Shift key for fast movement)<\/p>\n\n\n\nDescriptor :\n 0x05, 0x01, \/\/ USAGE_PAGE (Generic Desktop)\n\t 0x09, 0x06, \/\/ USAGE (Keyboard)\n\t 0xa1, 0x01, \/\/ COLLECTION (Application)\n\t 0x05, 0x07, \/\/ USAGE_PAGE (Keyboard)\n\t 0x19, 0xe0, \/\/ USAGE_MINIMUM (Keyboard LeftControl)\n\t 0x29, 0xe7, \/\/ USAGE_MAXIMUM (Keyboard Right GUI)\n\t 0x15, 0x00, \/\/ LOGICAL_MINIMUM (0)\n\t 0x25, 0x01, \/\/ LOGICAL_MAXIMUM (1)\n\t 0x75, 0x01, \/\/ REPORT_SIZE (1)\n\t 0x95, 0x08, \/\/ REPORT_COUNT (8)\n\t 0x81, 0x02, \/\/ INPUT (Data,Var,Abs)\n\t 0x95, 0x01, \/\/ REPORT_COUNT (1)\n\t 0x75, 0x08, \/\/ REPORT_SIZE (8)\n\t 0x81, 0x03, \/\/ INPUT (Cnst,Var,Abs)\n\t 0x95, 0x05, \/\/ REPORT_COUNT (5)\n\t 0x75, 0x01, \/\/ REPORT_SIZE (1)\n\t 0x05, 0x08, \/\/ USAGE_PAGE (LEDs)\n\t 0x19, 0x01, \/\/ USAGE_MINIMUM (Num Lock)\n\t 0x29, 0x05, \/\/ USAGE_MAXIMUM (Kana)\n\t 0x91, 0x02, \/\/ OUTPUT (Data,Var,Abs)\n\t 0x95, 0x01, \/\/ REPORT_COUNT (1)\n\t 0x75, 0x03, \/\/ REPORT_SIZE (3)\n\t 0x91, 0x03, \/\/ OUTPUT (Cnst,Var,Abs)\n\t 0x95, 0x06, \/\/ REPORT_COUNT (6)\n\t 0x75, 0x08, \/\/ REPORT_SIZE (8)\n\t 0x15, 0x00, \/\/ LOGICAL_MINIMUM (0)\n\t 0x25, 0x65, \/\/ LOGICAL_MAXIMUM (101)\n\t 0x05, 0x07, \/\/ USAGE_PAGE (Keyboard)\n\t 0x19, 0x00, \/\/ USAGE_MINIMUM (Reserved (no event indicated))\n\t 0x29, 0x65, \/\/ USAGE_MAXIMUM (Keyboard Application)\n\t 0x81, 0x00, \/\/ INPUT (Data,Ary,Abs)\n\t 0xc0 \/\/ END_COLLECTION<\/code><\/pre>\n\n\n\nResult<\/h2>\n\n\n\n You might recall that at the beginning of that post, I mentioned that I didn’t want to rewrite any driver or software. That proved to be successful as after finishing this project on my windows laptop, I decided to plug the module directly to my smartphone. Without any modification and without needing any application, I can now have a mouse\/keyboard or joystick on my phone.<\/p>\n\n\n\n
\n
\n
<\/video>Mouse Mode – not the best interface for a smartphone but it works<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<\/video>Joystick mode : compatible with gaming app (In that case Drastic emulating Pokemon for Nintendo DS)<\/figcaption><\/figure>\n\n\n\n<\/video>Keyboard mode : Using a different laptop with raw windows + MACH 3<\/figcaption><\/figure>\n\n\n\nThat’s it for now. Ultimately I would add more buttons to it and work on the deadzone for the joystick – at the moment it is a simple threshold which reduces the dynamic range.<\/p>\n","protected":false},"excerpt":{"rendered":"
This story started a few years ago when I was working as an intern into a PCB production facility. I had a great time there and after a few discussions with the CEO, he agreed on sharing some ressources for our skinny student competition at the time. (Many Galileo students got as Christmas gift hundred… <\/p>\n
Read more Long Time No See – USB & Joystick Playground<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[],"_links":{"self":[{"href":"https:\/\/debaz.azzano.fr\/azzano\/wp-json\/wp\/v2\/posts\/544"}],"collection":[{"href":"https:\/\/debaz.azzano.fr\/azzano\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/debaz.azzano.fr\/azzano\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/debaz.azzano.fr\/azzano\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/debaz.azzano.fr\/azzano\/wp-json\/wp\/v2\/comments?post=544"}],"version-history":[{"count":70,"href":"https:\/\/debaz.azzano.fr\/azzano\/wp-json\/wp\/v2\/posts\/544\/revisions"}],"predecessor-version":[{"id":672,"href":"https:\/\/debaz.azzano.fr\/azzano\/wp-json\/wp\/v2\/posts\/544\/revisions\/672"}],"wp:attachment":[{"href":"https:\/\/debaz.azzano.fr\/azzano\/wp-json\/wp\/v2\/media?parent=544"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/debaz.azzano.fr\/azzano\/wp-json\/wp\/v2\/categories?post=544"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/debaz.azzano.fr\/azzano\/wp-json\/wp\/v2\/tags?post=544"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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