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Smart Electronics ESP32 WIFI BLE Single/Dual 4/8 channel Relay Module ESP32 Secondary Development Board

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Smart Electronics ESP32 WIFI BLE Single/Dual 4/8 channel Relay Module ESP32 Secondary Development Board

ESP32 WIFI BLE Single/Dual 4/8 channel Relay Module ESP32 Secondary Development Board
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Smart Electronics ESP32 WIFI BLE Single/Dual 4/8 channel Relay Module ESP32 Secondary Development Board
AC90-250V single channelDC5-60V single channel DC5-60V dual channel AC220V/DC5-30V four channels DC5-30V power supply with 8 channels AC220V dual power supplyDC5V power supply with 16 channels

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DC-DC XL7015 module 5V-80V 0.8A Dc converter Step-down module Wide voltage input better than XL7005A

Smart Electronics BH1750FVI digital Light Intensity BH1750 Light Module Light Ball DC5V

BH1750FVI digital Light Intensity BH1750 Light Module Light Ball DC5V Keyes BH1750FVI Digital Light Sensor Module is a kind of integrated circuit of digital light intensity sensor for two-wire serial bus interface. Using the light intensity data collected by the module, the brightness of the LCD and keyboard background lamps can be adjusted. Module resolution can detect wide range of light intensity changes.

Smart Electronics 74HC595 driver 8-digit digital tube display module

74HC595 driver 8-digit digital tube display module 1. Two 595 digital tubes are used to drive the digital tube, which needs 3 IO ports of single chip microcomputer, and it is displayed according to the principle of dynamic scanning of digital tube; 2. wide working voltage 3.3V to 5V; 3. PCB size: 71mm * 22mm 4. digital tube model: 0.364 bits

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XL 6009 DC to DC Step Up Converter xl6009 step-up power module dc motor

This DC-DC Module is based on IC XL6009E1 which is a high-performance step-up switching current (BOOST) module. The module uses the second generation of high-frequency switching technology XL6009E1 core chip that offers superior performance over the first generation technology LM2577. XL6009 replaces LM2577 module as LM2577 is about to be phased out.

Smart Electronics IR Infrared Proximity Sensor Obstacle Avoidance module for Arduino Raspberry Pi DIY Smart Car 3PIN Robot Reflective Photoelec

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Smart Electronics LNA 50-4000 MHz RF SPF5189 NF 0.6dB Low Noise Amplifier Signal Receiver Board Wireless Communication Module With Shield Shell

LNA 50-4000 MHz RF SPF5189 NF 0.6dB Low Noise Amplifier Signal Receiver Board Wireless Communication Module With Shield Shell Specifications: LNA: 50-4000mhz NF: SPF5189Z LNA0: 0.6 dB Amplifier: FM Size: 34 x 25mm/1.33 x1.0inch

Smart Electronics 16 channel relay module 5v power supply control board module 5V12V with optocoupler protection LM2596

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Smart Electronics 300W 20A DC-DC Buck Converter Step Down Module Constant Current LED Driver Power Step Down Voltage Module

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Smart Electronics TPA3116D2 high power /HIFI digital 2.1 power amplifier board 10-25V

TPA3116D2 high power /HIFI digital 2.1 power amplifier board 10-25V Product Name: high power digital 2.1 power amplifier board Chip type: tpa3116d2 * 2 Input voltage: dc10-25v (DC) Output power: 50wx2 + 100wxi Max Channel: dual channel + 0.1 subwoofer Output impedance: 4-8 Ω Frequency response 20Hz-20KHz Protection function: short circuit overheat power supply anti reverse connection Switching frequency: 1.2MHz Features: power on delay / anti shock Size: about 88 * 66 * 27.6m Net weight: about 105g

Smart Electronics 12V Time Delay Relay Module Car Start Delay Switch Time Relay Module

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Smart Electronics DC5V-12V Charging module for lithium battery 18650 UPS voltage converter uninterruptible power supply module

DC5V-12V Charging module for lithium battery 18650 UPS voltage converter uninterruptible power supply module Product parameters: Starting voltage: 1.2V Working voltage: 2V-6.5V Output voltage: 5V/9V/12V optional Working voltage is 2V-6.5V Input current: 2A Output power: ≤8W (no matter how high it is, it is easy to overheat) No-load current 2-3.5mA (input 1.5V output 12V) Board size: 33*16*6.5mm Output pad: USB/DC optional

Smart Electronics Wedding special igniter 12V DC universal high voltage generator pulse high voltage module output 60KV arc

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Smart Electronics 5A DC to DC CC CV Lithium Battery Step down Charging Board Led Power Converter module XL4015

5A DC to DC CC CV Lithium Battery Step down Charging Board Led Power Converter module XL4015 Three in one: (1) Use as an ordinary step-down module with over-current protection capability; (2) Used as a charger for various voltage values of lithium batteries, batteries, nickel-cadmium nickel-metal hydride batteries (battery pack), used in solar panels, wind turbines and other occasions; (3) Use as a high-power LED constant current drive module

Smart Electronics LCD1602 yellow-green screen 1602A lcd display blue

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