Joy-Con
Revision as of 21:30, 29 August 2018 by AveSatanas (talk | contribs) (Copy JC pinout information from https://reswitched.tech/hardware/joycon)
Joy-Con is the name for the Switch's primary game controllers. The controllers communicate to the console through bluetooth and can be disconnected from the main unit.
Hardware
The controllers themselves are simple to disassemble and identify.
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The front of the Joy-Con internal[1]
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The rear of the Joy-Con internal[2]
| Color | Item |
|---|---|
| Red | Broadcom BCM20734 Bluetooth 4.1/2.4 GHz Transceiver |
| Orange | STMicroelectronics NFCBEA 812006 33 (Likely NFC reader IC) |
| Yellow | Macronix International MX25U4033E 4 Mb CMOS Flash |
Joy-Con Connector Pinout
| Logic analyzer channel | Joy-Con Connector Pin | Function | Remark |
|---|---|---|---|
| - | 1 | GND | - |
| - | 2 | GND | - |
| 0 | 3 | BT status? | Only high when connected to console via Bluetooth, low when unpaired, sleeping, or attached to the console directly |
| 1 | 4 | 5V | Joy-Con power and charging |
| 2 | 5 | Serial data, console to Joy-Con | Inverted level (idle at GND) |
| 3 | 6 | Attach status? | GND only when directly attached to console and not sleeping, 1.8V. |
| - | 7 | GND | - |
| 4 | 8 | Serial data, Joy-Con to console | Standard level (idle at 1.8V) |
| 5 | 9 | ? | Always at GND |
| 6 | 10 | Flow control | Looks like RTS line, Joy-Con will only send data when this line is high. |
When first connected the baud rate is at 1000000bps(!), after the initial handshake the speed is then switched to 3125000bps(!!). The handshake probably exchanges information about the side of the Joy-Con, the color, and Bluetooth address etc.
Left & Right Separate Joy-con
When paired directly to a computer over bluetooth, the joy-con both provide identical HID input report descriptor. This does not appear to include motion controls, IR data, or NFC. They both behave as detached single-player controllers.
HID Input Report Descriptor (Hexadecimal):
00000000: 05010905 A1010601 FF852109 21750895 ....¡...ÿ…!.!u.• 00000010: 30810285 30093075 08953081 02853109 0..…0.0u.•0..…1. 00000020: 31750896 69018102 85320932 75089669 1u.–i...…2.2u.–i 00000030: 01810285 33093375 08966901 8102853F ...…3.3u.–i...…? 00000040: 05091901 29101500 25017501 95108102 ....)...%.u.•... 00000050: 05010939 15002507 75049501 81420509 ...9..%.u.•..B.. 00000060: 75049501 81010501 09300931 09330934 u.•......0.1.3.4 00000070: 16000027 FFFF0000 75109504 81020601 ...'ÿÿ..u.•..... 00000080: FF850109 01750895 30910285 10091075 ÿ…...u.•0‘.…...u 00000090: 08953091 02851109 11750895 30910285 .•0‘.…...u.•0‘.… 000000A0: 12091275 08953091 02C0 ...u.•0‘.À
| Parsed Bytes | Description |
|---|---|
| 0x05, 0x01, | Usage Page (Generic Desktop Ctrls) |
| 0x09, 0x05, | Usage (Game Pad) |
| 0xA1, 0x01, | Collection (Application) |
| 0x06, 0x01, 0xFF, | Usage Page (Vendor Defined 0xFF01) |
| 0x85, 0x21, | Report ID (33) |
| 0x09, 0x21, | Usage (0x21) |
| 0x75, 0x08, | Report Size (8) |
| 0x95, 0x30, | Report Count (48) |
| 0x81, 0x02, | Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) |
| 0x85, 0x30, | Report ID (48) |
| 0x09, 0x30, | Usage (0x30) |
| 0x75, 0x08, | Report Size (8) |
| 0x95, 0x30, | Report Count (48) |
| 0x81, 0x02, | Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) |
| 0x85, 0x31, | Report ID (49) |
| 0x09, 0x31, | Usage (0x31) |
| 0x75, 0x08, | Report Size (8) |
| 0x96, 0x69, 0x01, | Report Count (361) |
| 0x81, 0x02, | Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) |
| 0x85, 0x32, | Report ID (50) |
| 0x09, 0x32, | Usage (0x32) |
| 0x75, 0x08, | Report Size (8) |
| 0x96, 0x69, 0x01, | Report Count (361) |
| 0x81, 0x02, | Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) |
| 0x85, 0x33, | Report ID (51) |
| 0x09, 0x33, | Usage (0x33) |
| 0x75, 0x08, | Report Size (8) |
| 0x96, 0x69, 0x01, | Report Count (361) |
| 0x81, 0x02, | Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) |
| 0x85, 0x3F, | Report ID (63) |
| 0x05, 0x09, | Usage Page (Button) |
| 0x19, 0x01, | Usage Minimum (0x01) |
| 0x29, 0x10, | Usage Maximum (0x10) |
| 0x15, 0x00, | Logical Minimum (0) |
| 0x25, 0x01, | Logical Maximum (1) |
| 0x75, 0x01, | Report Size (1) |
| 0x95, 0x10, | Report Count (16) |
| 0x81, 0x02, | Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) |
| 0x05, 0x01, | Usage Page (Generic Desktop Ctrls) |
| 0x09, 0x39, | Usage (Hat switch) |
| 0x15, 0x00, | Logical Minimum (0) |
| 0x25, 0x07, | Logical Maximum (7) |
| 0x75, 0x04, | Report Size (4) |
| 0x95, 0x01, | Report Count (1) |
| 0x81, 0x42, | Input (Data,Var,Abs,No Wrap,Linear,Preferred State,Null State) |
| 0x05, 0x09, | Usage Page (Button) |
| 0x75, 0x04, | Report Size (4) |
| 0x95, 0x01, | Report Count (1) |
| 0x81, 0x01, | Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position) |
| 0x05, 0x01, | Usage Page (Generic Desktop Ctrls) |
| 0x09, 0x30, | Usage (X) |
| 0x09, 0x31, | Usage (Y) |
| 0x09, 0x33, | Usage (Rx) |
| 0x09, 0x34, | Usage (Ry) |
| 0x16, 0x00, 0x00, | Logical Minimum (0) |
| 0x27, 0xFF, 0xFF, 0x00, 0x00, | Logical Maximum (65534) |
| 0x75, 0x10, | Report Size (16) |
| 0x95, 0x04, | Report Count (4) |
| 0x81, 0x02, | Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) |
| 0x06, 0x01, 0xFF, | Usage Page (Vendor Defined 0xFF01) |
| 0x85, 0x01, | Report ID (1) |
| 0x09, 0x01, | Usage (0x01) |
| 0x75, 0x08, | Report Size (8) |
| 0x95, 0x30, | Report Count (48) |
| 0x91, 0x02, | Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) |
| 0x85, 0x10, | Report ID (16) |
| 0x09, 0x10, | Usage (0x10) |
| 0x75, 0x08, | Report Size (8) |
| 0x95, 0x30, | Report Count (48) |
| 0x91, 0x02, | Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) |
| 0x85, 0x11, | Report ID (17) |
| 0x09, 0x11, | Usage (0x11) |
| 0x75, 0x08, | Report Size (8) |
| 0x95, 0x30, | Report Count (48) |
| 0x91, 0x02, | Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) |
| 0x85, 0x12, | Report ID (18) |
| 0x09, 0x12, | Usage (0x12) |
| 0x75, 0x08, | Report Size (8) |
| 0x95, 0x30, | Report Count (48) |
| 0x91, 0x02, | Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) |
| 0xC0, | End Collection |
Colors
HEX codes for the colors shown in the "Controllers" menu of the Switch UI can be found in a Joy-con SPI dump starting at offset 0x6050. Body color is first followed by button color and each is 3 bytes long. These values are able to be re-written with any HEX color value to make the Joy-cons show up as different colors in the UI. The following is a list of official HEX colors recovered from SPI dumps.
| Color Name | Body HEX | Button HEX |
|---|---|---|
| Gray | #828282 | #0F0F0F |
| Neon Red | #FF3C28 | #1E0A0A |
| Neon Blue | #0AB9E6 | #001E1E |
| Neon Yellow | #E6FF00 | #142800 |
| Neon Green | #1EDC00 | #002800 |
| Neon Pink | #FF3278 | #28001E |
| Mario Red | #E10F00 | #280A0A |
| Black Pro Controller | #323232 or #323231 | ? |