Simucube Wireless Wheel 2

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Wireless Wheel 2 Module
Wireless Wheel 2 Module.jpg
Wireless Wheel 2 Module dimensions.png
Configurable inputs
Digital 96
Analog 4
Antenna
Type External (not included)
Connector U.FL
Frequency (Center/Band) 2.4 GHz
Gain (max) 2.14 dBi
Electrical specifications
Rechargeable version:
Charger input voltage/current 5.0V / 450mA
Supported battery chemistry Li-Ion or Li-Po
Battery voltage 2.5V – 4.2V
Non-rechargeable version:
Input voltage

2.0V – 3.8V

The Simucube Wireless Wheel 2 Module is an upgraded version of the Simucube Wireless wheel module. The new module offers more digital inputs, 4 analog axes, and in-build battery charger, and a voltage regulator.

Digital inputs

Wireless Wheel 2 Module has a total of 98 digital input pins in which 96 inputs are fully configurable by wheel manufacturers. 2 pins are reserved for shifter paddles. Shifter paddles are only mandatory devices, and the rest of the pins can be used as needed. Paddles are mandatory because they are used to connect and disconnect the wheel from Simucube. Each configurable IO pin can be used multiple times with different device types. Most of the input devices can also be configured with enable pins. These enable pins can be used to multiplex encoders. For example, one encoder can be configured as 12 different encoders with a rotary switch controlling which encoder is used at the time.

Possible digital input device types:
Button: Regular button, game controller holds signal high if pressed.
Encoder: Each detent is shown as a pulse. Pulsed game controller signal depends on turning direction.
Rotary switch: Maximum of 12 positions. Changing switch position will pulse corresponding output. The rotary switch can also be configured as buttons if the pulsing output is not needed or wanted.


Analog inputs

SLEEP pin with transistors can be used to turn external devices on and off

The wireless module offers AVCC output for analog devices. Output in AVCC is pulsed for lower power consumption and output is on only when the ADC module is sampling inputs. Output pulses are 2ms long and frequency is 100Hz, this means that AVCC is on 20% of the time. 2ms pulses work great with potentiometers, but Hall-effect sensors might not work with pulsed AVCC if Hall-sensor power-on time is too long. One option to provide VCC for Hall-sensor is to power it from Wireless Wheel 2 VDD pin and use MOSFETs connected to SLEEP pin so Hall-sensor can be powered off while Wireless Wheel 2 isn’t connected. SLEEP pin is high when Wireless Wheel 2 is connected to Simucube.

Battery connections

Wireless Wheel 2 Module has multiple VIN, GND, BATT, and SW_IN pins. The module will work when using only one of each, but it is recommended to connect pins together in the wheel circuit board. Pins should be tied together to ensure a reliable connection with the M.2 connector in case of mechanical shock or shaking.

Rechargeable version

Rechargeable example

Wireless Wheel 2 Module for rechargeable batteries has an in-built charger circuit and DC-DC converter to regulate battery voltage to 3.0V. The charger is connected to VIN and should be provided with 5.0V +- 5% with a minimum of 450mA for charging. BATT pins are charger output and the battery should be connected between these and GND. SW_IN is unregulated voltage input for the Wireless Wheel 2 Module and will provide voltage to the in-built DC-DC converter. The power switch can be connected between SW_IN pins and a positive battery terminal. installing power switch between SW_IN and BATT enable charging when the wheel is turned off.

Non-rechargeable version

Non-rechargeable example

Wireless Wheel 2 Module version for non-rechargeable batteries does not have a charger nor DC-DC converter. Due to a non-existing DC-DC converter, the VDD output is not regulated, and voltage will be the same as battery voltage. Even though it is possible to connect batteries straight to SW_IN pins to power this version, it is recommended to connect battery positive lead to VIN instead, since it has reverse polarity protection. VIN is internally connected to BATT pins in a non-rechargeable version. If a power switch is needed, it can be installed on battery leads or between BATT and SW_IN pins. If the power switch is not connected between mentioned pins, BATT pins should be connected to WS_IN pins to ensure power for the module.

Pinout

Wireless Wheel 2 Module uses M.2 connectors to fit all the I/O pins in a compact, low-profile packet. All LED pins include a 220 Ohm current limiter resistor.

Left M.2 connector

Bottom side Top side
Function Signal Pin Signal Function
GND GND 66 67 AVCC 3.0 V OUTPUT to analog circuitry
Max. 100 mA including VDD current.
GND GND 64 65 AN0 ADC CH0 INPUT
0 .. 3.0 V voltage range
GND GND 62 63 AN1 ADC CH1 INPUT
0 .. 3.0 V voltage range
GND GND 60 61 AN2 ADC CH2 INPUT
0 .. 3.0 V voltage range
Input BTN64 58 59 AN3 ADC CH3 INPUT
0 .. 3.0 V voltage range
Input BTN63 56 57 BTN1 Input
Input BTN62 54 55 BTN2 Input
Input BTN61 52 53 BTN3 Input
Input BTN60 50 51 BTN4 Input
Input BTN89 48 49 BTN5 Input
Input BTN58 46 47 BTN6 Input
Input BTN57 44 45 BTN7 Input
Input BTN56 42 43 BTN8 Input
Input BTN55 40 41 BTN9 Input
Input BTN54 38 39 BTN10 Input
Input BTN53 36 37 BTN11 Input
Input BTN52 34 35 BTN12 Input
Input BTN51 32 33 BTN13 Input
Input BTN50 30 31 BTN14 Input
Input BTN49 28 29 BTN15 Input
GND GND 26 27 BTN16 Input
Input BTN80 24 25 GND GND
Input BTN78 22 23 BTN79 Input
Input BTN76 20 21 BTN77 Input
Input BTN74 18 19 BTN75 Input
Input BTN72 16 17 BTN73 Input
Input BTN70 14 15 BTN71 Input
Input BTN68 12 13 BTN69 Input
Input BTN66 10 11 BTN67 Input
Input BTN17 8 9 BTN65 Input
Input BTN19 6 7 BTN18 Input
Input BTN32 4 5 LED1 3.0 V status LED OUTPUT
through 220 Ohm series resistor
Input BTN30 2 3 BTN20 Input
- - - 1 BTN31 Input

Right M.2 connector

Bottom side Top side
Function Signal Pin Signal Function
Input BTN28 66 67 BTN29 Input
Input BTN26 64 65 BTN27 Input
Input BTN22 62 63 BTN25 Input
Input BTN24 60 61 BTN21 Input
Do not connect - 58 59 BTN23 Input
Do not connect - 56 57 - Do not connect
Input BTN96 54 55 - Do not connect
Input BTN95 52 53 - Do not connect
Input BTN94 50 51 - Do not connect
Input BTN93 48 49 - Do not connect
Input BTN92 46 47 SLEEP BP2 module sleep status
Active LOW (BP2 sleeps)
Input BTN91 44 45 TX LEUART TX signal OUTPUT
Input BTN90 42 43 RX LEUART RX signal INPUT
Input BTN89 40 41 LED2 2nd indicator LED OUTPUT
3.0 V through 220 Ohm resistor
Input BTN88 38 39 PADDLE1 Paddle input 1 (left)
Input BTN87 36 37 PADDLE2 Paddle input 2 (right)
Input BTN86 34 35 GND GND
Input BTN85 32 33 VDD +3.0 V OUTPUT
Max. 100 mA including AVCC current.
Input BTN84 30 31 BTN33 Input
Input BTN83 28 29 BTN34 Input
Input BTN82 26 27 BTN35 Input
Input BTN81 24 25 BTN36 Input
GND GND 22 23 BTN37 Input
GND GND 20 21 BTN38 Input
LED indicator for battery charging
Connect LED Anode to BATT
LED_CHG 18 19 BTN39 Input
SWITCH_IN operating voltage input SW_IN 16 17 BTN40 Input
SW_IN 14 15 BTN41 Input
LiPO/Ion/battery positive terminal BATT 12 13 BTN42 Input
BATT 10 11 BTN43 Input
GND GND 8 9 BTN44 Input
GND 6 7 BTN45 Input
Voltage INPUT terminal
5.0 V ± 5 %
VIN 4 5 BTN46 Input
VIN 2 3 BTN47 Input
- - - 1 BTN48 Input

Resources

Eagle library

Eagle library of Wireless Wheel 2 Module

3D-model

Wireless Wheel 2 Module 3D model file (.step)


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