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Maytech Waterproof Remote Control User Manual_20191012 by Eric and Eileen

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11.2 When

Speed Source

is set to

Motor Wire

or

Hall Sensor

, the distance is the accumulation of the

product of speed and time per 0.1 second.
11.3 When

Speed Source

is set to

VESC

, remote and receiver will read VESC’s ABS data by UART port

and calculate it to distance and display.

12. Main battery voltage display:

12.1 This function works in both Esk8 and Esurf modes.
12.2 When

Speed Source

is set to

VESC

, it will obtain VESC voltage information by UART port;

Otherwise, voltage information is obtained by BAT port on receiver PCB.
12.3 Please make sure receiver GND and your main battery GND are connected(common ground).
12.4 If receiver is not connected to main battery or VESC UART port, remote will not display anything about

main battery.

12.5 If receiver gets voltage information, remote will show voltage in bars according to preset

Batt. Type

and

Batt. Ser Num

.

Under the voltage bar on remote screen, it’s marked

xx Batt.

. “xx” means current

Batt. Ser Num

value,

please check if it’s same as your battery specification.
If

Batt. Type

or

Batt. Ser Num

is set different from your battery’s actual value, voltage display will be

incorrect. Please make sure correct settings of both.

If voltage bars only have 2 or less left, the bars and

xx Batt.

words on screen will flash to remind you

charge your battery.

13. Voltage, Current, Temperature display:

13.1 When

Speed Source

is set to

VESC

, Remote and receiver will obtain voltage/current/temperature

information by VESC UART port. The function automatically takes effect after correct connection and settings
with VESC. You can press the Function Button to turn over the main interface data to view these data. Please
refer to “Item 5.2” in this manual.

13.2 It works for both Esk8 and Esurf modes when use with VESC.
13.3 VESC has temperature sensitive resistor on PCB. It can measure VESC’s temperature. But motor

temperature display needs:

13.3.1 Motor has built-in 10K NTC thermistor and it’s connected to the Temperature pin of hall sensor

connector.

13.3.2 In VESC_TOO, Beta Value for Motor Thermistor is set to 3950K.

14. Relay and Transistor switches using instructions:

14.1 Both switches work in Esk8 and Esurf modes.
14.2 When relay switch is in original position(no display of

1

in Screen Main interface) , COM(common point)

and CLO(normally close) are connected.

14.3 When relay switch is moved (display of

1

in Screen Main interface) , COM(common point) and

OPE(normally open) are connected.

14.4 Max current of relay switch contacts is 3A. Recommend use this switch for water pump or main lighting

system.

14.5 When Transistor switch is turned on, the load circuit will be connected to the GND terminal. Max current

2A. Recommend to use it for indicator LED.

14.6 When transistor switch is on (display of

2

in Screen Main interface), transistor switch source will be

connected to GND and turn on LED. When it’s off(no display of

2

in Screen Main interface), LED is off.

14.7 Recommend 5-12V voltage for the transistor switch. Voltage over 20V will burn the transistor.
14.8 Transistor switch pin SWI is closed to BAT pin and MOT pin. Please make sure no electrical contact

between them. Or it will burn transistor.

Summary of Contents for MTSKR1905WF

Page 1: ...nd displayed through the UART port 1 7 It has one 30V 3A Relay mechanical switch and one 20V 2A transistor electronics switch for esk8 lights esurf water pump using etc 2 Configuration Remote Transmitter IP rating IP67 Triggers Throttle trigger and Brake trigger ESK8 mode Throttle and Brake Esurf mode Throttle and Cruise speed control No Brake Sensor Type Non contact Hall sensor CPU STM8 Display 1...

Page 2: ... sensor to detect motor RPM If your don t use motor hall sensor to ESC hall sensor and just use it for detecting motor RPM please connect one 5 1K pull up resistor between one hall wire and 5V wire Otherwise hall signal will not be detected by receiver If you use hall sensor with ESC for motor spinning then you don t need to connect the pull up resistor for motor RPM detection Function button Char...

Page 3: ...ss connection of Receiver TXD RXD and VESC RX TX Receiver s TXD VESC RX Receiver RXD VESC TX 5 2 3 VESC supports UARR and PWM PPM throttle control When use with Maytech waterproof remote you can select UART PPM PPM and UART three control options and select corresponding control in remote 6 Speed source and 11 VESC Thr We recommend to use PPM and UART control PPM to control throttle and UART to rea...

Page 4: ...ng of the main battery motor phase wire RPM measurement hall sensor RPM measurement with pull up resistor and DC DC module UBEC You only need to connect the ESC 10 signal wires accordingly 5 3 2 The 10 signal wires derived from the ESC have the functions of upgrading the firmware of the receiver adjusting ESC parameters two switches hall RPM detction etc If you don t need these functions these wir...

Page 5: ...e 7pin 20cm two 3pin 20cm color may be different for different batch 5 4 2 DC DC module BEC UBEC Input DC 18 75V Output DC 5V 1200ma It can convert main battery voltage to 5V output for receiver If your ESC doesn t have built in 5V power supply you will need this module for receiver this module needs to be purchased separately ...

Page 6: ...one hour 7 Switch on off Switch on When remote is off long press the function button 1s screen displays Maytech logo and firmware version to switch on the remote Switch off When remote is on long press the function button 1 5s screen displays POWER OFF to switch off the remote 8 Function button operating instructions Function Button Operation Current display Next display after the operation Long p...

Page 7: ...SK8 mode Receiver outputs brake signal The braking force is determined by the position of the brake trigger Throttle trigger at 10 100 throttle position Main interface of ESURF mode After 3 seconds it enters the cruise speed control mode and the throttle keeps its original output after release The cruise control will be cancelled when the brake trigger is pressed again to the end or the throttle t...

Page 8: ...mperature information by VESC UART port The function automatically takes effect after correct connection and settings with VESC You can press the Function Button to turn over the main interface data to view these data Please refer to Item 5 2 in this manual 13 2 It works for both Esk8 and Esurf modes when use with VESC 13 3 VESC has temperature sensitive resistor on PCB It can measure VESC s tempe...

Page 9: ...rength Signal strength between remote and receiver Recommend that the direct distance between them is no more than 10 meters in air and no more than 1 meter in water 16 1 2 Remote BATT voltage The voltage percentage of the remote built in lithium battery BATT Num Main Batt Series Number 16 1 3 Main battery voltage The voltage is measured by receiver or obtained by VESC The receiver reports the mai...

Page 10: ...display range is 100 in ESurf mode display range is 0 100 When VESC Thr is set to None receiver s PWM_T output PWM signal as throttle signal When VESC Thr is set to Current Duty Cycle receiver s TXD RXD output signal to VESC RX TX as throttle signal 16 1 6 Relay switch Refer to Item 8 in this manual 16 1 7 Transistor switch Refer to Item 8 in this manual 16 2 Esurf mode Motor RPM display In Esurf ...

Page 11: ...d distance 16 3 2 In Esk8 mode after selecting suitable Speed Source when screen displays main interface short press Function Button it will change to Speed interface press again it will change to Distance interface 16 3 3 You can set the unit Km KM H or Mile MPH for Speed Distance 16 3 4 For different Speed Source text in the lower right corner is different Motor RPM is obtained by VESC Speed is ...

Page 12: ...s the current value and the minimum value after running The current shows the current value and the maximum value after running 16 5 VESC temperature and motor temperature display For both Esurf and Esk8 modes the interface must be displayed after selecting VESC in Speed Source Data is obtained from the VESC via the UART port It shows the current value and the minimum value after running Distance ...

Page 13: ...from Calibration sub menu to main menu 18 Main Menu Description Main Menu has 11 options with specific parameters in the sub menu under each option 1 Thr Mode Control mode Select options in Main Menu Short press function button jump to the next option Long press function button select current option and enter sub menu 2 Batt Type Main battery type 3 Batt Ser Num Main battery Series Number 4 Pair P...

Page 14: ...nd to enter Sub menu 3 2V Lithium ion ferrous phosphate batteries 3 2 V per cell 3 7V Lithium ion or lithium polymer batteries 3 7 V per cell The full voltage of the main battery can be obtained by matching this parameter with 3 Batt Num According to the collected actual voltage it will calculate the percentage of power display it on the top of the home screen Short press function button to select...

Page 15: ...must need to be finished If don t continue calibration and exit remote and receiver will stop working together Press throttle trigger to top and loose it Then press brake trigger to top and loose When press trigger the screen will prompt Calibrating and Cal OK After both two are Cal OK long press function button to return to main menu and save the results 19 6 Speed Source This is an important par...

Page 16: ...e please set following 2 parameters in VESC_TOOL APP Setting General APP to USE UART PWM and UART APP Setting UART Baudrate 115200 bps 19 11 2 Current mode throttle of the VESC is controlled by the motor current To get good throttle linearity the maximum current must be set in VESC_TOOL to match the maximum current actually needed Too low maximum current will cause too low speed even with top thro...

Page 17: ...te screen will show charger input voltage Input and current battery voltage Batt When remote battery gets to 4 2V it will stop charging automatically The screen displays voltage data all the time and will not shut down automatically Please don t put remote on charger for longtime after full charged Charging without supervision is prohibited When the remote control is not used please charge it once...

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