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30A Relay Module 1 Channel

$1.13 – $1.22
30A Relay Module 1 Channel 5V 12V 24V 250VAC SLA-05VDC-SL-C SLA-12VDC-SL-C SLA-24VDC-SL-C with opticoupler protection support high-level trigger low-level trigger
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Adapter Module for ESP-01 ESP8266

$0.39
Adapter adaptor Module board for ESP-01 ESP8266 esp01 esp-01s esp01s onboard 3.3V/5V voltage regulator
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5V 12V Bluetooth MP3 Music Audio Decoder Module Board

$1.33 – $1.42
Features 5 modes: Bluetooth AUX in FM Radio TF Card USB
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UV Light Strip 12V 60 LEDs per Meter 8mm 390nm – 400nm

$1.10 – $1.29
Ultraviolet UV Light Strip 60 LEDs per Meter 390nm – 400nm 12V 8mm 2835 PCB width: 8mm LED type: 2835
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UV Light Strip 30 60 120 LEDs per Meter 365nm – 370nm

$1.99 – $4.91
2835 Ultraviolet UV Light Strip 30 60 120 LEDs per Meter 365nm – 370nm 5V 12V 24V 5050 2835 3535
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WS2815 12V 5050 Addressable LED Strips 30 60 74 96 144 LEDs

$1.89 – $7.36
WS2815 12V 5050 Addressable RGB LED Strips 30 60 74 96 144 LEDs 10mm 30LEDs/meter 60LEDs/meter 74LEDs/meter 96LEDs/meter 144LEDs/meter 30Pixels/meter
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WS2812B 5V 5050 Addressable LED Strips 10mm 30 60 144 LEDs

$2.64 – $5.48
WS2812B 5V 5050 Addressable RGB LED Strips 10mm 30 60 144 LEDs 10mm 30LEDs/meter 60LEDs/meter 144LEDs/meter 30Pixels/meter 60Pixels/meter 144Pixels/meter individually
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12V 5 Meters 5050 LED Strip 60 Pixels per Meter

$0.51 – $1.85
12V 5 Meters 5050 LED Strip 60 Pixels/Meter 60LEDs/Meter Warm White Cold White Red Blue Green Yellow Pink Purple RGB
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CCMHCN 720W DC 6-90V 8A Motor Speed Controller 12V 24V 48V 72V 84V Voltage Regulator PWM Module

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$1.69
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Prototyping PCB Shield for Arduino Mega 2560 R3 with Screw Terminal Blocks

$4.36 – $5.23
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2A USB 18650 Battery Charger Module Boost 3.7V to 5V 9V 12V

$0.28
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1-8S Lipo Lithium Battery Level Indicator Low Voltage Buzzer Alarm

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$0.75 – $0.96
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5mm LED Diffused White Lens (1k/bag)

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$4.72 – $5.29
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2000W AC 50-220V PWM Module Dimmer Speed Controller Adjustable Voltage Regulator

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$0.52

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ESP32 2.8 inch Display Development Board

$9.44 – $10.75
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NodeMCU Lua Lolin CP2102 ESP8266 ESP-12E WiFi Development Board

$2.32
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NodeMCU Lua Lolin V3 CH340 ESP8266 ESP-12E WiFi Development Board

$1.63

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LM317 DC-DC 1.2-37V Adjustable Step-down Buck Converter Power Supply Module Linear Voltage Regulator

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$0.32
Output Current : 1.5A ( minimum ), 2.2A ( typical value ) Input-output voltage difference (VI-VO): 40Vdc ( max )
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ESP8266 OLED WiFi Development Board 0.91” OLED Display CP2102 Support Arduino IDE ESP8266 NodeMCU LUA

$9.30
WiFi Kit 8 is a classic IoT dev-board, it's a highly integrated product based on ESP8266 (Wi-Fi), Li-Po battery management system, 0.91″ OLED is also included. It's the best choice for smart cities, smart farms, smart homes, and IoT makers.
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Amass XT90H Connectors with Protective Insulating Cap (10pcs/Lot)

$4.18 – $8.37
Amass 10PCS XT90 connector 5 Pairs Amass XT90 connector XT90H Plug 4.5mm banana Male Female Adapter for RC Drone Car
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DHT11 Digital Temperature Humidity Sensor DHT-11

$0.40 – $0.68
Supply voltage: 3.3-5.5V DC Output: single bus digital signal Measuring range: 5-95%RH humidity, temperature -20~60℃ Accuracy ±5%RH, ±2℃
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FY-11 Thermometer Hygrometer ℃ ℉ Temperature and Humidity Sensor

$0.51 – $0.52
Specifications Color: Black/White Measuring Humidity Range: 10%RH ~ 99%RH Humidity Accuracy: +5/-5% Humidity Display Resolution: 1%RH Measuring Temperature Range: -50
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IR Infrared Flame Fire Detection Sensor Detector Module 3-Pin 4-Pin Digital Analog Blue

$0.22
1. Can detect the flame or the wavelength at 760 nm to 1100 nm range of the light source, the
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