Electric Boost Fin Principle of operation and Description of the components. Boost Surf, Inc.
1. Technical specification. Li-ion 6S1P / 3500mAh / 22,2 V DC 25,7 V 1,5A ... Power supply: Battery type: Input for charging: Radio: Bluetooth: BLE 4.2 Remout control, RF: 433.
2. Purpose of the device. The device is designed to be installed on a surfboard or SUP instead of a regular fin using special adapters and allows a person to save strength when rowing and more effectively use their skills when moving on water or waves. 2.1 Surfboard installation: 2.
3. Device management The device is switched ON and OFF by bringing the screwdriver handle with a magnet into the light indication area. The Hall sensor HS1 is responsible for turning on, and HS2 for turning off. A timer shutdown is also possible, the default value is 30 min, which can be configured via the APP. The device also turns off automatically when the battery is completely discharged.
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4. Control of operating modes After successfully turning on the device, the motor is controlled by two buttons of the radio remote control. The signal from the radio remote control is received by the ANT1 and ANT2 antennas and is fed to the input of the WL1 receiver and then fed to the PD2 input of the U2 controller, in which the signal is decoded. There are two switching modes: for button A - Short Boost, for button B - Long Boost. All parameters of these modes are configured through the application (APP).
4.1 Motor power graphs depending on tuning modes Smart 1 Data Step/sec. Smart 2 Power % Data Step/sec. Smart 3 Power, % Data Step/sec. Power, % 5 StepUp 5 StepUp 5 Time 5 TimeS1 3 70 TimeS1 3 StepDown 10 TimeS2 3 100 TimeS2 3 60 StepDown 10 TimeS3 3 100 StepDown 5 StepUp 100 Power,% Power,% Power,% Time,sec. Time,sec. Time,sec. Power,% Long Boost Data Step/sec. StepUp 15 Time 30 StepDown 10 Power 60 Time,sec.
5. Work algorithm of the schematic diagram START Power ON, Hall sensor HS1 Power Batt. =0 % LED, Red LED, Red – Blue Flash LED, Power status LED, Blue/Blue-Green Flash LED, Blue RGB LED D3 Yes No No MOIS sensor=0 Yes Buttons are paired ? No APP Android, iOS Yes BLE BT1, APP Connected ? Yes Mode setting No RF Pult WL1, Button1,2 pressed 433.
6. Description of the component. 6.1 Antennas The antennas are designed to receive control signals at a frequency of 433.92 MHz and are made of a copper strip 0.5 mm thick, 3.0 mm width and installed on both sides of the outer part of the case.
6.2 RX500 receiving module, WL1. Description: Used to receive commands from the remoute control, operating frequency 433.92 MHz. The RX500 receiving module WL1 is a UHF ASK receiving demodulator, which supports ASK demodulation. The receiving module has high sensitivity (-110dBm), low power consumption performance (<6mA), At the same time, it has a high dynamic range (greater than 60dB). The module uses a highly integrated chip, built-in front-end low noise amplifier, mixer, filter, frequency synthesizer.
6.3 BLE HM-17 module, BT1. Description: HM-17 is used to communicate with the application. HM-17 is Bluetooth V4.2 BLE version. HM Bluetooth module use CC2640 IC, Master and slave roles in one, transmission version and remotecontrol version in one, Support the AT command modify module parameters, Convenient and flexible. Used for communication with the application in which the settings of the operating modes are set.
6.4 Battery Pack LP6S1P15A15AL01 Description: LP6S1P15A15AL01 is a 6S1P Lithium-Ion rechargeable Battery Pack with Battery Management System integrated, norminal voltage at 22.2V, rated capacity at 3.5Ah, with 23cm long 22AWG open wires for charge, with 16AWG 6cm long wires and terminated with ESC 3.5 female connector for discharge, charge & discharge from the different terminals, with anti-reverse 2A diode built on charging positive wire (at 8cm position from bengnning of the wire) .
6.5 Multi-Rotor Brushless ESC BL-32-35A ESC is used to generate control signals for the motor. Main features: - ARM 32-Bit Cortex MCU, frequency up to 48 MHz. - BLHeli _32 firmware , which is designed for superior functionality and performance. - Supports regular 1-2ms pulse width input, as well as Oneshot125 (125-250us), Oneshot42 (41.7-83.3us) and Multshot(5- 25us). The input signalis automatically detected By the ESC upon power uр. - Dshot signalis supported at any rate up to at least Dshot1200.
FCC STATEMENT : This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. Warning: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
