Joy-Con is the name for the Switch's primary game controllers. The Joy-Con are internally called Ukyo (Left) and Sakyo (Right).
Hardware
Ukyo
| Component |
Description
|
| SoC |
Broadcom BCM20734
|
| IMU |
STMicroelectronics LSM6DS3H
|
| PMIC |
Texas Instruments BQ24072
|
| Storage |
Macronix International MX25U4033E 4 Mb CMOS Flash
|
Sakyo
| Component |
Description
|
| SoC |
Broadcom BCM20734
|
| MCU |
STMicroelectronics STM32P411
|
| NFC |
STMicroelectronics ST21NFCB
|
| IMU |
STMicroelectronics LSM6DS3H
|
| PMIC |
Texas Instruments BQ24072
|
| Storage |
Macronix International MX25U4033E 4 Mb CMOS Flash
|
Protocol
The Joy-Con can communicate wirelessly over Bluetooth or through the rails over UART. This uses a Nintendo proprietary protocol called "Nwcp".
NwcpPacket
This is a 5-byte packet header used by Broadcom's HCI Control Protocol.
| Offset
|
Size
|
Description
|
| 0x0
|
0x1
|
PacketType (always 0x19)
|
| 0x1
|
0x1
|
CommandCode
|
| 0x2
|
0x1
|
GroupCode (always 0x03)
|
| 0x3
|
0x2
|
PacketLength
|
CommandCode
| Value
|
Description
|
| 0x1 |
SendToDevice
|
| 0x81 |
ReceiveFromDevice
|
| Offset
|
Size
|
Description
|
| 0x0
|
0x1
|
CommandType
|
| 0x1
|
0x1
|
DeviceCommand
|
| 0x2
|
0x2
|
DataSize
|
| 0x4
|
0x1
|
CommandResult
|
| 0x5
|
0x1
|
DataCrc (CRC8 over Data for DataSize bytes)
|
| 0x6
|
0x1
|
HeaderCrc (CRC8 over the previous 6 bytes)
|
CommandType
| Value
|
Description
|
| 0x91 |
DeviceCommandToDevice
|
| 0x92 |
Hid
|
| 0x94 |
DeviceCommandFromDevice
|
| 0x9A |
|
| 0xA3 |
|
| 0xA5 |
Handshake
|
DeviceCommand
| Value
|
Description
|
| 0x01 |
Inquiry
|
| 0x02 |
WriteChargerSettings
|
| 0x03 |
ReadChargerSettings
|
| 0x04 |
AttachmentEnable
|
| 0x05 |
IsAttachmentEnabled
|
| 0x06 |
GetBatteryVoltage
|
| 0x07 |
ReadWakeUpReason
|
| 0x10 |
CreateHidConnection
|
| 0x11 |
DisconnectHid
|
| 0x12 |
SetHidInterval
|
| 0x13 |
GetHidInterval
|
| 0x18 |
Pairing
|
| 0x20 |
UpdateUartBaudRate
|
| 0x40 |
Test
|
HidCommand
| Value
|
Description
|
| 0x01 |
PairingOut
|
| 0x02 |
GetDeviceInfo
|
| 0x03 |
SetDataFormat
|
| 0x04 |
LRButtonDetection
|
| 0x05 |
Page
|
| 0x06 |
Reset
|
| 0x07 |
ClearPairingInfo
|
| 0x08 |
Shipment
|
| 0x10 |
SerialFlashRead
|
| 0x11 |
SerialFlashWrite
|
| 0x12 |
SerialFlashSectorErase
|
| 0x20 |
McuReset
|
| 0x21 |
McuWrite
|
| 0x22 |
McuResume
|
| 0x24 |
McuPollingEnable
|
| 0x25 |
McuPollingDisable
|
| 0x28 |
AttachmentWrite
|
| 0x29 |
AttachmentRead
|
| 0x2A |
AttachmentEnable
|
| 0x2B |
GetAttachmentInfo
|
| 0x30 |
SetIndicatorLed
|
| 0x31 |
GetIndicatorLed
|
| 0x38 |
SetNotificationLed
|
| 0x40 |
SensorSleep
|
| 0x41 |
SensorConfig
|
| 0x42 |
SensorWrite
|
| 0x43 |
SensorRead
|
| 0x48 |
MotorEnable
|
| 0x50 |
GetBatteryVoltage
|
| 0x51 |
WriteChargeSetting
|
| 0x52 |
ReadChargeSetting
|
| 0x58 |
ExtDevWrite
|
| 0x59 |
GetExtDevInfo
|
| 0x5A |
ExtDevPollingEnable
|
| 0x5B |
ExtDevPollingDisable
|
| 0x5C |
ExtDevInFormatConfig
|
| 0x5D |
|
| 0x60 |
InternalAttachmentWrite
|
| 0x61 |
|
| 0x62 |
InternalAttachmentEnable
|
| 0x63 |
InternalAttachmentPollingEnable
|
| 0x64 |
InternalAttachmentPollingDisable
|
| 0x7A |
AddButtonPlayData
|
| 0x7B |
StartStopButtonPlayData
|
| 0x80 |
Ack
|
| 0x81 |
PairingIn
|
| 0x82 |
DeviceInfo
|
| 0x83 |
LRButtonElapsedTime
|
| 0x90 |
SerialFlashData
|
| 0xA0 |
McuData
|
| 0xA8 |
AttachmentData
|
| 0xA9 |
AttachmentInfo
|
| 0xAA |
InternalAttachmentRead
|
| 0xB0 |
IndicatorLed
|
| 0xC0 |
SensorData
|
| 0xD0 |
BatteryVoltage
|
| 0xD8 |
ExtDevRead
|
| 0xD9 |
ExtDevInfo
|
Firmware
The firmware is stored inside the flash in Broadcom's PatchRAM format as follows:
| Offset
|
Size
|
Description
|
| 0x00 |
0x14 |
Magic number??
|
| 0x15 |
0x06 |
Unique MAC Address of controller
|
| 0x3B3 |
0x04 |
Offset to Factory Firmware
|
| 0x1FF4 |
0x08 |
OTA Magic, if the controller is Over-The-Air updated.
|
| 0x1FFC |
0x04 |
Offset to OTA Firmware, if OTA Magic is valid.
|
| 0x2000 |
0x1000 |
PairingInfo
|
| 0x5000 |
0x1 |
Shipment
|
| 0x6000 |
0x1000 |
FactoryConfiguration
|
| 0x8000 |
0x1000 |
UserCalibration
|
FactoryConfiguration
| Offset
|
Size
|
Description
|
| 0x00 |
0x10 |
IdentificationCode
|
| 0x12 |
0x01 |
Type
|
| 0x1B |
0x01 |
FormatVersion
|
| 0x20 |
0x18 |
Cal1
|
| 0x3D |
0x12 |
Cal2
|
| 0x4F |
0x01 |
Reserved
|
| 0x50 |
0x0D |
Design
|
| 0x80 |
0x18 |
Model1
|
| 0x98 |
0x12 |
Model2
|
Type
| Value
|
Description
|
| 0x01 |
JoyLeft
|
| 0x02 |
JoyRight
|
| 0x03 |
SwitchProController
|
| 0x04 |
(DeviceType 4)
|
| 0x05 |
(DeviceType 5)
|
| 0x06 |
(DeviceType 6)
|
| 0x07 |
LarkHvc1
|
| 0x08 |
LarkHvc2
|
| 0x09 |
LarkNesLeft
|
| 0x0A |
LarkNesRight
|
| 0x0B |
Lucia
|
| 0x0C |
[12.0.0+] Lagon
|
| 0x0D |
[13.0.0+] Lager
|
| 0x0E |
[14.0.0+] (DeviceType 30)
|
| 0x21 |
FiftyLeft (DeviceType 14)
|
| 0x22 |
FiftyRight (DeviceType 18)
|
Cal1
| Offset
|
Size
|
Description
|
| 0x00 |
0x18 |
SixAxisSensorCalibrationValue
|
Cal2
| Offset
|
Size
|
Description
|
| 0x00 |
0x09 |
LeftAnalogStickCalibrationValue
|
| 0x09 |
0x09 |
RightAnalogStickCalibrationValue
|
Design
ControllerColor
| Offset
|
Size
|
Description
|
| 0x00 |
0x03 |
Body color of controller in RGB Hex (see Joy-Con Colors)
|
| 0x03 |
0x03 |
Button color of controller in RGB Hex (see Joy-Con Colors)
|
| 0x06 |
0x03 |
Left grip color of controller in RGB Hex
|
| 0x09 |
0x03 |
Right grip color of controller in RGB Hex
|
DesignVariation
| Value
|
Name
|
| 0x00 |
LuciaJ, LagerJ
|
| 0x01 |
LuciaE, LagerE
|
| 0x02 |
LuciaU, LagerU
|
Model1
| Offset
|
Size
|
Description
|
| 0x00 |
0x06 |
SensorData
|
| 0x06 |
0x12 |
AnalogStickModuleParam
|
Model2
| Offset
|
Size
|
Description
|
| 0x00 |
0x12 |
AnalogStickModuleParam
|
UserCalibration
UserCal1
| Offset
|
Size
|
Description
|
| 0x00 |
0x02 |
UserCalMagicNumber
|
| 0x02 |
0x09 |
LeftAnalogStickCalibrationValue
|
| 0x0B |
0x02 |
UserCalMagicNumber
|
| 0x0D |
0x09 |
RightAnalogStickCalibrationValue
|
| 0x16 |
0x02 |
UserCalMagicNumber
|
UserCal2
| Offset
|
Size
|
Description
|
| 0x00 |
0x18 |
SixAxisSensorCalibrationValue
|
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.
| Developer Kit Joy-Con |
Release |
Body HEX |
Button HEX
|
| Black / ブラック |
2015.10.16 |
#313131 |
#0F0F0F
|
| Standard Retail Joy-Con Color |
Release |
Body HEX |
Button HEX
|
| Gray / グレー |
2017.03.03 |
#828282 |
#0F0F0F
|
| Neon Red / ネオンレッド |
2017.03.03 |
#FF3C28 |
#1E0A0A
|
| Neon Blue / ネオンブルー |
2017.03.03 |
#0AB9E6 |
#001E1E
|
| Neon Yellow / ネオンイエロー |
2017.06.16 |
#E6FF00 |
#142800
|
| Neon Green / ネオングリーン |
2017.07.21 |
#1EDC00 |
#002800
|
| Neon Pink / ネオンピンク |
2017.07.21 |
#FF3278 |
#28001E
|
| Red / レッド |
2017.10.27 |
#E10F00 |
#280A0A
|
| Blue / ブルー |
2019.10.04 |
#4655F5 |
#00000A
|
| Neon Purple / ネオンパープル |
2019.10.04 |
#B400E6 |
#140014
|
| Neon Orange / ネオンオレンジ |
2019.10.04 |
#FAA005 |
#0F0A00
|
| White / ホワイト |
2021.10.08 |
#E6E6E6 |
#323232
|
| Pastel Pink / パステルピンク |
2023.06.30 |
#FFAFAF |
#372D2D
|
| Pastel Yellow / パステルイエロー |
2023.06.30 |
#F5FF82 |
#32332D
|
| Pastel Purple / パステルパープル |
2023.06.30 |
#F0CBEB |
#373037
|
| Pastel Green / パステルグリーン |
2023.06.30 |
#BCFFC8 |
#2D322D
|
| Special Edition Joy-Con Color |
Release |
Body HEX |
Button HEX
|
| Nintendo Switch Gray Joy-Con / Nintendo Switch グレー |
2017.03.03 |
#828282 |
#0F0F0F
|
| Nintendo Switch Neon-Blue Left Joy-Con / Nintendo Switch ネオンブルー・ネオンレッド |
2017.03.03 |
#0AB9E6 |
#001E1E
|
| Nintendo Switch Neon-Red Right Joy-Con / Nintendo Switch ネオンブルー・ネオンレッド |
2017.03.03 |
#FF3C28 |
#1E0A0A
|
| Splatoon 2 Edition Neon-Green Left Joy-Con / スプラトゥーン2 |
2017.07.21 |
#1EDC00 |
#002800
|
| Splatoon 2 Edition Neon-Pink Right Joy-Con / スプラトゥーン2 |
2017.07.21 |
#FF3278 |
#28001E
|
| Super Mario Odyssey Edition Red Joy-Con / スーパーマリオ オデッセイ |
2017.10.27 |
#E10F00 |
#280A0A
|
| Super Smash Bros. Ultimate Edition Gray Joy-Con / 大乱闘スマッシュブラザーズ |
2018.11.02 |
#828282 |
#0F0F0F
|
| Pokémon: Let's Go! Edition Eevee-Brown Left Joy-Con / ポケットモンスター Let's Go! イーブイ |
2018.11.16 |
#C88C32 |
#281900
|
| Pokémon: Let's Go! Edition Pikachu-Yellow Right Joy-Con / ポケットモンスター Let's Go! ピカチュウ |
2018.11.16 |
#FFDC00 |
#322800
|
| *Nintendo Labo Creators Contest Edition "Cardboard"-Colored Joy-Con |
2018. (...?) |
#D7AA73 |
#1E1914
|
| **Dragon Quest XI S Lotto Edition Royal-Blue Joy-Con / ドラゴン クエスト XI S （ロト版） |
2019.09.27 |
#1473FA |
#00000F
|
| **Disney Tsum Tsum Festival Edition Neon-Purple Left Joy-Con / ディズニー ツムツム フェスティバル |
2019.10.10 |
#B400E6 |
#140014
|
| **Disney Tsum Tsum Festival Edition Neon-Pink Right Joy-Con / ディズニー ツムツム フェスティバル |
2019.10.10 |
#FF3278 |
#28001E
|
| Animal Crossing: New Horizons Edition Pastel-Green Left Joy-Con / あつまれ どうぶつの森 |
2020.03.13 |
#82FF96 |
#0A1E0A
|
| Animal Crossing: New Horizons Edition Pastel-Blue Right Joy-Con / あつまれ どうぶつの森 |
2020.03.13 |
#96F5F5 |
#0A1E28
|
| Fortnite Wildcat Edition Yellow Left Joy-Con / フォートナイト ワイルドキャット(山猫) |
2020.10.30 |
#FFCC00 |
#1A1100
|
| Fortnite Wildcat Edition Dark-Blue Right Joy-Con / フォートナイト ワイルドキャット(山猫) |
2020.10.30 |
#0084FF |
#000F1E
|
| Mario Red × Blue Edition Red Joy-Con / マリオ レッド × ブルー |
2021.02.12 |
#F04614 |
#1E1914
|
| Monster Hunter Rise Edition Gray Joy-Con / モンスターハンターライズ |
2021.03.26 |
#818282 |
#0E0F0F
|
| Fortnite Fleet Force Edition Dark-Blue Left Joy-Con / フォートナイト フリート フォース(力の艦隊) |
2021.06.04 |
#0084FF |
#000F1E
|
| Fortnite Fleet Force Edition Yellow Right Joy-Con / フォートナイト フリート フォース(力の艦隊) |
2021.06.04 |
#FFCC00 |
#1A1100
|
| Legend of Zelda: Skyward Sword Edition Dark-Blue Left Joy-Con / ゼルダの伝説 スカイウォードソード |
2021.07.16 |
#2D50F0 |
#1E0F46
|
| Legend of Zelda: Skyward Sword Edition Dark-Purple Right Joy-Con / ゼルダの伝説 スカイウォードソード |
2021.07.16 |
#500FC8 |
#00051E
|
| Nintendo Switch OLED Edition White Joy-Con / Nintendo Switch （有機ELモデル） ホワイト |
2021.10.08 |
#E6E6E6 |
#323232
|
| Splatoon 3 OLED Edition Blue-Gradient Left Joy-Con / （有機ELモデル） スプラトゥーン3 |
2022.08.26 |
#6455F5 |
#28282D
|
| Splatoon 3 OLED Edition Neon-Yellow-Gradient Right Joy-Con / （有機ELモデル） スプラトゥーン3 |
2022.08.26 |
#C3FA05 |
#1E1E28
|
| Pokémon: Scarlet × Violet OLED Edition Scarlet Left Joy-Con / （有機ELモデル） ポケットモンスター スカーレット・バイオレット |
2022.11.04 |
#F07341 |
#322D1E
|
| Pokémon: Scarlet × Violet OLED Edition Violet Right Joy-Con / （有機ELモデル） ポケットモンスター スカーレット・バイオレット |
2022.11.04 |
#9650AA |
#32322D
|
| Legend of Zelda: Tears of the Kingdom Edition Gold Joy-Con / （有機ELモデル） ゼルダの伝説 ティアーズ オブ ザ キングダム |
2023.04.28 |
#D2BE69 |
#32322D
|
| // *(Prize Awarded for Labo Contest - No Retail) // **(Available Japan Only)
|