30A Relay Module 1 Channel
$1.09 – $1.17
Adapter Module for ESP-01 ESP8266
$0.38
UV Light Strip 12V 60 LEDs per Meter 8mm 390nm – 400nm
$1.06 – $1.24
WS2815 12V 5050 Addressable LED Strips 30 60 74 96 144 LEDs
$1.81 – $7.07
WS2812B 5V 5050 Addressable LED Strips 10mm 30 60 144 LEDs
$2.54 – $5.26
12V 5 Meters 5050 LED Strip 60 Pixels per Meter
$0.49 – $1.78

Open Source
Microcontroller Development Boards

Sensors & Modules

Power Supplies & Modules

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30A Relay Module 1 Channel $1.09 – $1.17
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Adapter Module for ESP-01 ESP8266 $0.38
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5V 12V Bluetooth MP3 Music Audio Decoder Module Board $1.28 – $1.37
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UV Light Strip 12V 60 LEDs per Meter 8mm 390nm - 400nm $1.06 – $1.24
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UV Light Strip 30 60 120 LEDs per Meter 365nm - 370nm $1.91 – $4.72
10pcs Prototype Board Single Side Prototyping Stripboard Bakelite Phenolic
$0.61 – $7.23
4 6 8 Channels 5V 12V 24V Relay Module with Optocoupler, Low Level Trigger Blue PCB
$0.98 – $2.22
Amass XT60 Connector 10pcs/Lot
$2.58 – $5.16
HC-12 SI4463 433MHz Wireless Transceiver Module 1000m Long Distance UART Serial Port
$2.02 – $2.48
28BYJ-48 5V 12V DC Stepper Motor
$0.52 – $0.56