RM30.00

Description: The TSL2561 Luminosity Sensor Breakout is a sophisticated light sensor which has a flat response across most of the visible spectrum. Unlike simpler sensors, the TSL2561 measures both infrared and visible light to better approximate the response of the human eye. And because the TSL2561 is an integrating sensor (it soaks up light for a predetermined amount of time), it is capable of measuring both small and large amounts of light by changing the integration time.   The TSL2561 is capable of direct I2C communication and is able to conduct specific light ranges from 0.1 - 40k+ Lux easily. Additionally, the TSL12561 contains two integrating analog-to-digital converters (ADC) that integrate currents from two photodiodes, simultaneously. Each breakout requires a supply voltage of 3V and a low supply current max of 0.6mA.   The main features of the chip are as follows: 1. The upper and lower thresholds of the light intensity of the programmable configuration permit, and an interrupt signal is given when the actual illuminance exceeds the threshold; 2. Digital output conforms to the standard SMBus (TSL2560) and I2C (TSL2561) bus protocols; 3. Analog gain and digital output time programmable control; 4. In low power mode, the power consumption is only 0.75 mW 5. Automatically suppress light fluctuations of 50 Hz/60 Hz.

RM30.00

Description: 1. Control temperature by setting the temperature setting value and the difference value. 2. Digital and high accuracy temperature controller, output is a 20A relay that meets a variety of high power loads. 3. Can be used for water tanks, refrigerator, industrial chiller, steamer, industrial equipment, etc. 4. Connect the control circuit to power the controller, and the display shows the ambient temperature.   Instructions: Step 1, connect the power supply and equipment, you can supply power to the controller, which is displayed as measuring temperature. Step 2, press the SET button once, the display temperature will flash. Step 3, press +- to set the desired temperature (press +- to quickly raise and lower). After setting, press SET to confirm the return. Step 4, at this time, the controller automatically performs relay on and off according to the setting.   Specifications: Model: W3230 Type: 12V, 24V, 110-220V Color: as shown Output: 1 relay output, capacity = 20A Environmental requirements: -10~60°C, humidity 20%-85% Feature: high accuracy, digital, waterproof Temperature control range: -50~120°C Size(approx.): 79 X 43 X 26mm     Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2cm differences due to manual measurement.

RM20.00

Specifications: Type: DC 12V-24 8A/30A Dimmer Input: 12-24V Output: 1 Channel 96W 12-24V (0-8A)/360W 12-24V (0-30A) Static power consumption: 1W There is a black knob, just twirl it to adjust the brightness of LED lights Size: Dimension (L x W x H): Approx. 85 x 65 x 20mm Color: Ivory Silver Black Working Temperature: -20~60ºC   Applications: You can conveniently adjust the brightness of your LED bulbs/Led Strip with this dimmer Led Dimmer is a controller that it can adjust brightness infinitely, its control mode is knob-operated control, you could adjust light to the appropriate lighting brightness in accordance with your actual need, Perfect tools for most lighting purpose.   Features: 0~100% brightness adjustable Easy to install and simple to use Adjust the light soft and stable, no flickering. PWM digital dimming, avoid rush current, protect your LED lights Mainly use to adjust single color LED light lamps and Led Strip. Constant voltage and constant current output can be connected with amplifiers to extend its load.   8A   30A   Note: Please allow 1-3cm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.

RM25.00

RJ201T2 USB to 485 converter TVS transient stop protection Super cost-effective products There are PL2303 chip, and ch340 chip for small and portable selection, easy to use usb straight 485, one step in place   Tips: It is recommended that the computer operating system chooses the ch340 chip for the customer of win8 or win10 system, and the driver of the ch340 is relatively well installed. PL2303 models and individual customer feedback win8 and win10 system drivers are not easy to install, Therefore, we cannot guarantee that all customers can install the win10 system driver. Most customer feedback can be installed with the driver wizard. Very stable. Size: length x width x height: 70x27x 12mm Weight: 40g Interface protection: TVS transient suppression protection, PL2303 chip Chip solution: pl2303 chip & ch340 chip Baud rate: maximum baud rate 115200 Power supply: USB directly takes power without external power supply, stable performance RS-485 signal: A+, B-, GND Transmission distance: theoretically up to 1200m, but the actual environment has various interferences that do not reach the ideal value, and the actual environmental test is required. Communication protocol: pure hardware device, not subject to agreement Working mode: Universal usb to 485 converter, support any 485 device Operating environment: -40 ° C to 85 ° C, relative humidity of 5% to 95% Additional features: 5v debugging power supply Support system: Support Win98, 2000, XP/Vista/Win7/8/Linux and other systems   Product Description USB to 485 interface converter (RJ201T2) is an intelligent universal interchanging converter that converts USB signals into RS485 signals. This product is designed in accordance with general-grade standards. The transient suppression protection function prevents the internal chip from being damaged due to level incompatibility, has anti-lightning strike, and anti-static shock, and is limited in slope driving, effectively suppressing interference. Solve the superposition of the valid signal and the invalid signal on the transmission circuit. The error-free data transmission rate is up to 115200bit.   Driver installation instructions 1, install the driver: Open the driver folder and find the driver for the corresponding operating system. Click exe to install the file. When the driver is successfully installed, insert RJ201T2, the system will be a virtual serial port (such as: COM5 can be viewed in the device manager); Note: If the virtual serial port number is greater than 7, please use 1-7, the port will be affected stability. 2, set the com port: Set the virtual serial port number to the corresponding location of the software. For example, set to the com port of the serial debugging software; 3. Connect the hardware line according to the following table; send data, the indicator light flashes during communication, and the usb converter works normally;   View driver installation Open My Computer - Control Panel - Device Manager - Port, as shown below: 2. After the driver is successfully installed, a com port will be virtualized, and the corresponding com port communication will be selected in the control software of the 485 device. . 3. If an exclamation point appears, the driver is not installed successfully. You need to uninstall the original driver (right-click uninstall or drive folder will also have the uninstall file, double-click to uninstall), restart the computer and install. The reason for the unsuccessful installation: It may be a driver version error or an operation error. Please download the driver for the corresponding system.   4. After the driver is installed, a com port will be virtualized in the device manager port. If the com port number is greater than or equal to 7, please change the com port number to less than 7.   Modification method: Open Device Manager - Port - com port right - Properties - Port Settings - Advanced to 1-6. Wiring instructions Product port definition and wiring: 5p binding post / port identification / description 1: VCC debugging product VCC (5V) 2 : GND Debug product GND Wiring needs to be supplied to the products being debugged. Other time slots can be left empty. 3 : GND2 485 device GND 4 : A 485 device A (D+ ) 5 : B 485 device B (D-) If the 485 device has a better ground wire connection, the terminal can be empty if there is no ground wire.

RM55.00

Product introduction This equipment can be used for the measurement of general household water quality. Generally, the tap water TDS is within 100 (about 90 in Shenzhen) and the purified water is within 10.   The Arduino-compatible TDS sensor is used to measure the TDS value of water. The TDS value can reflect the cleanliness of water and can be applied to water quality testing in the fields of domestic water and hydroponics.   TDS (Total Dissolved Solids): Indicates how many milligrams of dissolved solids are dissolved in 1 liter of water. In general, the higher the TDS value, the more lysate is contained in the water and the more unclean the water. Therefore, the size of the TDS can be used as one of the basis for reflecting the cleanliness of the water.   The commonly used TDS testing equipment is a TDS pen. Although it is inexpensive and easy to use, it cannot transmit data to the control system, do long-term online monitoring, and analyze the water quality. Using a special instrument, although the data can be transmitted, the accuracy is high, but the price is very expensive. To this end, we have specially introduced this Arduino-compatible TDS sensor, which can be used to measure the TDS value of water after connecting to the Arduino controller. Designed for arduino, this product is plug and play and easy to use. The wide voltage supply of 3.3~5.5V and the analog signal output of 0~2.3V make this product compatible with 5V, 3.3V control system, which can be easily used in the ready-made control system. The excitation source used for measurement uses an AC signal, which can effectively prevent probe polarization, extend probe life, and increase the stability of the output signal. The TDS probe is a waterproof probe that can be immersed in water for long periods of time. The product can be applied to water quality testing in the fields of domestic water, hydroponics and the like. With this sensor, you can easily DIY a TDS detector, and easily check the cleanliness of the water to make your water quality better.   Features 1. Wide voltage operation: 3.3~5.5V 2. 0~2.3V analog signal output, compatible with 5V, 3.3V two control systems 3. The excitation source is an AC signal, effectively preventing probe polarization 4. Waterproof probe for long-term immersion in water 5. Arduino compatible, easy to connect, plug and play, no soldering required   Technical specifications Signal adapter board: Input voltage: 3.3~5.5V Output signal: 0~2.3V Working current: 3~6mA TDS measurement range: 0~1000ppm TDS measurement accuracy: ±10% F.S. (25°C) Size: 42*32mm Module interface: XH2.54-3P Electrode interface: XH2.54-2P

RM10.00

Module Highlights: Time can be adjusted via a potentiometer, meeting your most occasions MicroUSB 5.0V power supply with input, easy to use 5--30V wide supply voltage External triggering and onboard buttons Two triggering methods With a relay pull-in indicator Interference ability, under various interference will not malfunction relay for industrial control.   Module features: 1. Working voltage: Wide-voltage 5--30V between any voltage, MicroUSB power connector and two solder terminals   2. Operating mode: to the module power output of the module state: normally open (NO) and the common terminal (COM) open, normally closed (NC) and the common terminal (COM) is turned on. Originating outside the contact (TRIG) to a low pulse signal, or touch trigger button and instantly, the relay and, working lights, this time, the status of the relay output: normally open (NO) and the common terminal (COM) is turned on, Normally Closed (NC) and the common terminal (COM) is disconnected after 0-24 seconds (this time can be adjusted according to your needs) relay opens after the bell, then relay back to the state before the trigger.   3. The time can be adjusted via a potentiometer, default 0-24 seconds. If you need more time, more replaceable capacitor (C2) or potentiometer. Delay time formula: T = 1.1RC. For example: 1M resistor capacitor 22uf then T = 1.1 * 0.000022 * 1000000 = 24.2 seconds.   4. With a relay indicator.   5. The module can be controlled: 10A 250VAC (AC), 10A 30VDC (direct current) following loads.   6. Has freewheeling protection relay.   7. signal terminal block is designed with a pull and a filter circuit, anti-jamming capability, suitable for industrial control. Many manufacturers have added optocoupler isolation, but with the trigger signal to the module and not isolation, would not achieve the interference effect. After the test was found to trigger or enhance the stability of end to interference, regardless of this module is the electromagnetic interference environment, or instantly through power module, the relay will not malfunction.   8. Size: 5.4 * 1.9 * 1.8cm (L * W * H)   9. Weight: 16g       Applications:   1. Anti-theft alarm delay, building sound and light control light switch, etc.   2. On-time delay of on-board equipment prevents excessive current from burning the vehicle equipment when the vehicle is on fire.

RM20.00

DESCRIPTION: This is MCP2515 CAN Module TJA1050 Receiver SPI 51 Single Chip Program Routine Arduino with this module, you will easy to control any CAN Bus device by SPI interface with your MCU, such as Arduino UNO and Compatible with Arduino based microcontroller projects. The MCP2515 CAN Bus Interface Module implements the CAN 2.0B protocol for robust distributed MCU communication networks.   Features : Supports CAN V2.0B specification, the communication speed 1Mb/s. 0 to 8-byte data field. With the standard frame, expand the frame and remote frame. 120 ohm termination resistors. With impedance matching, ensures the drive capacity, long-distance data transmission against signal radiation.  Industrial standard 9 pin sub-D connector OBD-II and CAN standard pinout selectable. Changeable chip select pin Changeable CS pin for TF card slot Changeable INT pin Screw terminal that easily to connect CAN_H and CAN_L 2 Grove connectors (I2C and UART) SPI Interface up to 10 MHz Standard (11 bit) and extended (29 bit) data and remote frames Two receive buffers with prioritized message storage   Specification 5V DC power supply module, SPI interface protocol control. Working current: 5mA (1μA standby current. Except the power indicator). SPI Interface up to 10 MHz The working temperature: - 40 ℃ ~ 85 ℃ Module size (mm): 40*28 Positioning screw hole center spacing (mm): 38* 23   Pinout of MCP2515 CAN Module: Pin Name USE VCC 5V Power input pin GND Ground pin CS SPI SLAVE select pin (Active low) SO SPI master input slave output lead SI SPI master output slave input lead SCLK SPI Clock pin INT MCP2515 interrupt pin  

RM14.00

5 channel Infrared Reflective Sensor TCRT5000 KIT 5 way/road IR Photoelectric Switch Barrier Line Track Module   5-channel tracing module analog output, analog output and distance, object color related. The stronger the infrared reflection (white), the larger the output, the weaker the infrared radiation (black), and the smaller the output. The closer the detector is to the black line, the smaller the output, so that the distance of the black line can be judged by the output analog. The smaller the value, the closer the sensor is to the black line. Compared with other track sensors that can only output high and low levels, the 5-channel analog output of this product can feedback the distance of the black line, and the feedback is more accurate.   Wiring: 1 VCC VCC is the positive input port of the power supply and can be connected to the voltage of 3.3V~5V. 2 GND GND is the negative input of the power supply 3. OUT1~5 OUT is the signal output port, which links the I/O port of the MCU.   The sensor adopts TCRT5000, which uses infrared light detection, high sensitivity, anti-interference and stable performance.   Product parameters 1. Using the chip: 74HC14D 2. Working voltage: 3.3V-5V 3. Output mode: digital signal 4. Measuring distance: 1CM-1.5CM 5. Detection probe: TCRT5000L 6. Detection signal: detect black line output low level, detect white line is high level, output low level beyond detection range 7. LED status: detect black line LED off, detect white line LED is bright   5-way infrared tracking sensor overview: Based on the TRCT5000 infrared reflection sensor, it is often used to make tracking smart cars. The infrared emitting diode of the TRCT5000 sensor continuously emits infrared rays. When the emitted infrared rays are reflected by the object, they are received by the infrared receiver and output analog values. The output analog value is related to the object distance and the color of the object. The position of the tracking line is judged by calculating the analog value of the five outputs.   void setup() { Serial.begin(115200); Serial.println("TRSensor example"); pinMode(A0, INPUT); pinMode(A1, INPUT); pinMode(A2, INPUT); pinMode(A3, INPUT); pinMode(A4, INPUT); }   void loop() { Serial.print(analogRead(A0)); Serial.print(" "); Serial.print(analogRead(A1)); Serial.print(" "); Serial.print(analogRead(A2)); Serial.print(" "); Serial.print(analogRead(A3)); Serial.print(" "); Serial.print(analogRead(A4)); Serial.println(); delay(200); }

RM40.00

Current measurement range: 0-50A The smallest measurable current value is 0.3A   Describe: Digital AC Voltmeter Ammeter is used to display measured AC voltage and AC current on the same meter. Widely used in the field of power distribution automation, such as voltage stabilizers, educational equipment, home appliance maintenance, plug-in boards, small household distribution boxes, stage audio, timing devices, etc.   Specification: Product model: AC50-500V Product Name: AC Current Voltmeter Display mode: LED Update speed: 50 meters per second Measurement error: ±1% Product size: 48*29*22mm (subject to the actual product) Lead length: about 18cm   The package includes: Voltmeter AC Ammeter Notes: Transformers come in blue and black, and we'll send the colors randomly. When using this product, please make sure that your power supply is standard sine wave, otherwise it will be affected!  

RM36.00

Current measurement range: 0-10.0A For small currents, it is recommended to use the 10A model to measure more accurately   Describe: Digital AC Voltmeter Ammeter is used to display measured AC voltage and AC current on the same meter. Widely used in the field of power distribution automation, such as voltage stabilizers, educational equipment, home appliance maintenance, plug-in boards, small household distribution boxes, stage audio, timing devices, etc.   Specification: Product model: AC50-500V Product Name: AC Current Voltmeter Display mode: LED Update speed: 50 meters per second Measurement error: ±1% Product size: 48*29*22mm (subject to the actual product) Lead length: about 18cm   The package includes: Voltmeter AC Ammeter Notes: Transformers come in blue and black, and we'll send the colors randomly. When using this product, please make sure that your power supply is standard sine wave, otherwise it will be affected! ​    

RM26.00

Specification Input Voltage:DC 6-60V Display Accuracy:0.1V Control Accuracy:0.1V Output Type:direct output Voltage Tolerance:±0.1V Apply For:6-60V MAX 80V battery Size:81*54*18mm   Package 1 x Digital display Lead acid Battery Charge Control Module   Use: In the setting voltage value, start button play button raised, about stop button role to down key   Set the start voltage: Normal display voltage state, press to a starting voltage button ,to display the start charging voltage. long Press the start button, digital flashes, by start and stop button, set the start charging voltage value. Set Stop voltage: Normal Voltage normal display mode, press to a Stop voltage button ,to display the Stop charging voltage. long Press the Stop button, digital flashes, by start and stop button, set the Stop charging voltage value. Setting Error: Energized state while holding down the start / stop button, digital display 888, which is the factory setting.     Connection Diagram    

RM28.00

Features This charging control module can be used to measure low and high current so that it can achieve fully automatic charge management. The set value of the free start and stop effectively protect the battery from overcharge damage or loss of electricity. Digital display settings supports real-time monitoring of voltage. It is suitable for home charger to charge the battery, keeping voltage stable, helps to prolong battery life and save energy. When the battery pole is connected incorrectly, there will be no output, so that you needn't worry about electric shock, safe to use. When the output is short-circuit, the charger will be off automatically, so that no need to worry about burning out. Widely applied the lithium battery and storage battery with the voltage range between 3.7-120V.   Specification Material: Fiber glass board + Electronic component Input voltage: AC220V Display accuracy: 0.1V Control accuracy: 0.1V Voltage error: ±0.1V Output type: output switch Application: 3.7-120V (Lithium battery, storage battery)   Package includes 1 x Digital Battery Charging Control Module   Setting instructions Starting voltage setting: Press once to display the starting voltage, long press to flash the light, then set the starting voltage value by the start and stop buttons. Stopping voltage setting: Press once to display the stopping voltage, long press to flash the light, then set the stopping voltage value by the start and stop buttons. Power ON/OFF indicator: The indicator light is on when under the starting voltage, which means charging; the indicator is off when the voltage is higher than the stopping voltage above the stop voltage, which means discharging.   Instructions: In the state of setting the voltage value, the start button functions as "+", and the stop button functions "-". Starting voltage setting: Under the normal voltage display, press the starting voltage button once to display the starting charging voltage. Long press the button, the light flash, then the starting charging voltage value can be set by the starting and the stopping button. Stopping voltage setting: Under the normal voltage display, press the starting voltage button once to display the stopping charging voltage. Long press the button, the light flash, then the stopping charging voltage value can be set by the starting and the stopping button. Factory reset: Pressing both starting and stopping button while powering on, it will display 888, which is factory reset.     Connection Diagram

RM155.00

TTGO T-Call V1.3 ESP32 Wireless Module GPRS Antenna SIM Card SIM800L Module Are you stuck with your project because of the limited WiFi range of ESP8266 or ESP32 or do want to place your project on a remote location, don’t worry here comes ESP32 With Onboard SIM800L. Now use a sim card with ESP32 for GPRS !!!   Hardware Specifications Chipset ESPRESSIF-ESP32 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor FLASH QSPI flash 4MB / PSRAM  8MB SRAM 520 kB SRAM Button Reset USB to TTL CP2104 Modular interface UART、SPI、SDIO、I2C、LED PWM、TV PWM、I2S、IRGPIO、capacitor touch sensor、ADC、DACLNA  pre-amplifier On-board clock 40MHz crystal oscillator  Working voltage 2.7V-3.6V Working current About 70mA Sleep current About 300uA SIM card Nano SIM card Working temperature -40℃ ~ +85℃ Size&Weight 78.83mm*28.92mm*8.06mm(11.77g)   Power Supply Specifications Power Supply USB 5V/1A Charging current 500mA Battery 3.7V lithium battery JST Connector 2Pin 1.25mm USB  Type-C   Wi-Fi Standard FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC Protocol 802.11 b/g/n(802.11n，speed up to150Mbps)A-MPDU and A-MSDU polymerization，support 0.4μS Protection interval Frequency range 2.4GHz~2.5GHz(2400M~2483.5M) Transmit Power 22dBm Communication distance  300m   Bluetooth Protocol Bluetooth v4.2BR/EDR and BLE standard Radio frequency with -97dBm sensitivity NZIF receiver Class-1,Class-2&Class-3 emitter AFH Audio frequency CVSD&SBC audio frequency   Software specification Wi-Fi Mode Station/SoftAP/SoftAP+Station/P2P Security mechanism WPA/WPA2/WPA2-Enterprise/WPS Firmware upgrade UART download/OTA（Through network/host to download and write firmware） Software Development Support cloud server development /SDK for user firmware development Networking protocol IPv4、IPv6、SSL、TCP/UDP/HTTP/FTP/MQTT User Configuration AT + Instruction set, cloud server, android/ios app   Dimensions Pin Diagram

RM95.00

ESP8266 Dev Board + 0.91" OLED Encouraged by the resounding success caused by the emergence of the ESP8266 chip from the famous Espessif Systems on the global microcontroller market, as well as by the widespread popularity of wireless connections with the simultaneous emergence of new-generation conceptual computer networks, the TTGO trademark is launching a number of successful and demanded electronic solutions under its brand. Its products are part of an endless list of Arduino-compatible products developed by various manufacturers, and today there are just an insane amount of all kinds of simple and complex, useful and convenient products.   The TTGO WiFi ESP8266 NodeMCU module is endowed with truly enormous potential that can help novice or professional developers in their quest to invent their own unique innovative projects with support for the equally well-known Internet of Things (IoT, Internet of Things) technology, which is based on remote communication between smart devices. deployed across the globe at various distances and armed means of access to the world wide web Internet. Among the immense variety of ways to use the module, most often the design of educational, construction, household or industrial robotics, the creation of communication and control facilities for peripheral equipment combined with a microcontroller, the manufacture of multipurpose stationary or mobile applications, stands out.   The TTGO ESP8266 Nodemcu application development platform blurs the boundaries before the need to know a single programming language; it perfectly "understands" both the fundamental C ++, and convenient scripting Lua, and even MicroPhyton. Freely distributed source code of firmware for various versions of development kits (SDK) gives the developer the ability to independently make the necessary changes and create modified firmware with the NodeMCU interpreter or based on AT commands pre-configured for the needs of the project. At the same time, TTGO fully supports the development of custom applications based on the well-known Arduino IDE or ESPlorer editors for Windows, Linux or Mac-OS operating systems.   Hardware Specifications Main chip ESPRESSIF-ESP8266 FLASH: 4M KEY: reset,prg Dispaly: 0.91-inch 128*32 OLED USB to TTL CP2102 modular  interface: read , write , IIC , SPI , the middle , PWM , ect... on-board clock :26MHz crystal oscillator working voltage :3.3V-7V working current: about 70mA working temperature range: -40℃ ~ 90℃ size: 50.86mm*18.2mm*6.96mm   Power Supply Specifications Power Supply :USB 5V/1A charging current: 500mA battery: 3.7V lithium battery   Dimensions   For more product information, click : https://github.com/LilyGO/TTGO-ESP8266-0.91-SSD1306?spm=a2g0o.detail.1000023.1.6d0a76bacVyJHX&file=TTGO-ESP8266-0.91-SSD1306   Pin Diagram   Package Contents 1 X TTGO ESP8266 (Without battery by default) 1 X power cable (Jst 2 pin 1.25mm) 2 X PIN   WEIGHT : 7.81g (1 SET)

RM20.00

Interface Description: 1 The power supply can use Micro-USB mobile phone charger, 3.7-4.2V lithium battery, 3.7-24V DC power supply, any one of the three can be selected. 2 Short-circuit the "on / off contact" for 2 seconds to set the on / off of the decoder board. For battery-powered situations, shutting down when not in use saves power and facilitates modification.     Instructions: After the power is turned on, the blue indicator light flashes quickly and enters Bluetooth mode; after the "beep tone" is broadcast, it enters pairing mode and waits for pairing; the mobile phone Bluetooth finds "XY-WRBT" (power amplifier board device name), click "XY-WRBT" Connect, play the “prompt tone” after the connection is successful, the indicator light is on, you can play mobile phone music, the indicator light flashes slowly when playing music; after the Bluetooth is disconnected, the power amplifier board is ready for the next pairing, and enter the “prompt tone” after entering Pairing mode is waiting for pairing.   Precautions for using 3.7V lithium battery 1 When the battery is used for power supply, the decoder board automatically shuts down when the battery voltage is lower than 3.3V. After re-powering or fully charging, short-circuit the on / off contact for 2 seconds to start up. 2 When using battery power, if the battery voltage is too low, there may be "sizzling" noise. In this case, the battery needs to be charged. 3 Since there is no lithium battery charging protection circuit on the decoder board, it is recommended to use a lithium battery with a protection board. 4 If your rechargeable battery supports Micro USB direct charging, you can use Micro USB to charge the battery directly.   Note: Due to manual measurement, please allow 1-3mm different. Due to different displays and different lighting, the image may not reflect the actual colors of the project. Thank you for your understanding.   When purchasing electronic components, please have certain electronic basic knowledge of the module. Most modules only provide descriptions or send materials. There is no technical consulting support. Please be careful to shoot for beginners.

RM25.00

  Description: XY-P15W is a high-power stereo Bluetooth audio module.Dual channels audio signal output.Built-in amplifier module therefore it can connect to loudspeaker directly.It is ideal for DIY wireless Bluetooth speakers and transponders.   Features: 1. Width work voltage range 2. Applicable multiple type speakers 3. Knob adjustment 4. Support reverse connection protection 5. Support short circuit protection 6. Self-recovery overheat protection   Parameters: 1. Product name: XY-P15W Stereo Bluetooth Power Amplifier Module 2. Model: XY-P15W 3. Work Voltage :DC 8V-24V 4. Communication distance: 15meter(Max) 5. Channel:Dual channel   Output Power (at 1KHz): 1. Output power 16W*2 at 12V 4ohm 2. Output power 10W*2 at 12V 8ohm 3. Output power 15W*2 at 16V 4ohm 4. Output power 20W*2 at 20V 4ohm 5. Output power 30W*2 at 24V 4ohm(Need add extra heat sink!)   Match speaker(30W~150V): 1. 4ohm at 8V~12V 2. 8ohm at 8V~24V 3. 16ohm at 8V~24V 4. Work Temperature:-40℃~85℃ 5. Work Humidity:0%~95%RH 6. Module Size:50*35*14 mm   Use steps: 1. Choose the right speaker and connect as shown in wiring diagram. 2. Connect to right power supply from input terminal.LED indicator will flashing and it means that module enters pairing mode.And then speak prompt voice and it means that module is waiting for pairing. 3. Turn ON Bluetooth in phone. 4. Select Bluetooth device ‘XY-P15W’in your Bluetooth device listing. 5. LED indicator will keep ON and it means that module is successfully connected and is waiting for playing. 6. Module will playing music after select music in phone.LED indicator will keep slowly blinking. 7. Module will speak prompt voice if disconnected.   Application: 1. Modified speaker 2. Amplifier equipment 3. Car Bluetooth device   Note: 1. The power amplifier board should be as far away as possible from the WIFI signal (router) avoid interference. 2. Recommended power supply voltage DC 8~24V. Module will be damaged if input voltage is more than 26V. 3. Input voltage can not more than 12V if connect 4ohm speaker. 4. Input voltage can not more than 24V if connect 8ohm speaker. 5. It is recommended to use a power supply of 2A or higher. 6. It need add extra heat sink if output power is more than 20W*2. 7. Please don’t use too long wires to avoid interference. 8. It is recommended to use a speaker above 30W to avoid speaker damage. 9. Please read use manual and description before use. 10. Please tear off the shell before installing the shell

RM14.00

CH340C ESP PROG V1.0 WIFI Downloader ESP8266 ESP-01 ESP-01S WIFI Wireless Programmer Adapter Module for Arduino IDE Description: This module is an USB adpater /programmer for ESP8266 modules of type ESP-01 or ESP-01S. It is conveniently fitted with a 2x4P 2.54mm female header to plug the ESP01 . Also it breakout all the pin of the ESP-01 via a 2x4P 2.54mm male header, so it is very conveniently for user to debugger the ESP8266. The module is based on the USB-UART CH340C which is compatible with all platforms. Onboard with the ESP8266 automatic download circuit. It is very convenient for users to download ESP-01/01S program, upgrade firmware, serial debugging and so on. It supports lots of software such for Arduino IDE, ESP8266 Flasher and Lexin FLASH_DOWNLOAD_TOOLS . There is no need to press any buttons, the WiFi module will automatically enter the download mode.   Specification: Chip: CH340C Working voltage: DC 5V Interface: USB Type A Weight: 5.90g

RM220.00

Features Widely use in Electric Scooter / Small Scooter A welded mount bracket for easy fitment to multiple applications Specifications Motor Voltage: 24V DC Rated speed: 2750 RPM Rated current: 19A Output: 350W No-load currency: 16.4A Rating Torque: 1.22N m Rating speed: 2750rpm Wiring: 2 (Black & Red) Model Number: MY1016 Number of Teeth on Sprocket: 11 Weight: 2.98KG Sprocket 11 teeth  

RM1,809.00

INV220625066

RM400.00

INV220524879 BALANCE