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1 CHANNEL 433MHZ RF 12V RELAY
1-channel 433MHz RF 12V relay module for remote control of AC/DC devices with Arduino, Raspberry Pi, and microcontrollers.
The 1-Channel 433MHz RF 12V Relay Module is a wireless relay solution that allows you to control AC or DC devices remotely using a 433MHz RF transmitter. Operating at 12V control voltage, it can safely switch loads such as lights, fans, motors, and home appliances.
This module is ideal for home automation, remote-controlled electronics, DIY IoT projects, and wireless switching applications. It features indicator LEDs for relay status, a secure relay output via screw terminals, and reliable RF signal reception. Compatible with Arduino, Raspberry Pi, and other microcontrollers, it enables easy integration into wireless control systems.

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Mini Portable Virtual Laser Projection Keyboard and Mouse Wireless Bluetooth
- Compatible with Android, iOS, Windows and Mac all kinds of operation systems that can be used with any phone, tablet, PC and laptop for a smooth and fast way of text input.
- Built-in Bluetooth for connecting to other devices without complex wired troubles
- More stable and smarter
- Can change the mini USB port to micro USB port.Â
- With mini Bluetooth speakers, which support voice reporting and music playing
- 3 in 1 Function: Laser keyboard,Mouse and bluetooth speaker
- Good touch sensitivity
- The BEEP sound and brightness can be adjusted on the laser keyboard
Peak Green PLA 1.75mm 1 KG Filament-Wanhao
Text to Speech TTL Module (Serial to Speech)
-  Single row 0.1″ header for easy connection to a host system
- Power requirements: +5 VDC
- 30 mA idle
- 46-220 mA active (depending on speech parameters and output load)
- Â Communication: Asynchronous 9600 bps serial (8N1)
- Dimensions: 1.25″x1.5″x0.37″
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Text support rate is better
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 Interface operation is simpler
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5V single power supply.
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Output directly connected to the speaker, can drive 4 ohms 3W / 8 ohm 2W speakers
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Busy status output, can be connected to the microcontroller IO or indicator light, no need to be left floating.
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 Voice effect optimization
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 Module miniaturization and easy integration
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Dimension: 33*27.5mm
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With mounting holes

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