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4 Channel RF Remote Control Module
4-channel RF remote control module for Arduino, Raspberry Pi, and wireless control of AC/DC devices.
Description
The 4-Channel RF Remote Control Module is a wireless solution for controlling up to four AC or DC devices remotely. Operating with a 433MHz RF signal, it allows convenient on/off control without the need for wired connections.
Ideal for home automation, DIY IoT projects, robotics, and wireless control applications, this module features four relay channels with indicator LEDs, secure screw terminals, and comes with a 4-button RF remote for easy operation. Compatible with Arduino, Raspberry Pi, and other microcontrollers, it enables flexible integration into wireless automation systems.
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- High cost performance
- Support UART / GPIO data communication interface
- Support STA / AP / STA + AP coexistence mode of operation
- Support SmartLink intelligent networking (APP)
- Support wireless upgrade firmware
- Support WPS network configuration
- Built-in onboard antenna &Temperature and humidity sensor
- RGB three-color light adjustable
- Provide rich AT command set configuration
- Free AiCloud cloud service for debugging
- 3 AA batteries / 5V adapter power supply
- Size: 61.6mm x 56.2mm;
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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