Electronic doorbell suitable for deaf person
An electronic doorbell and technology for the deaf, applied in the direction of electric transmission signal system, etc., can solve problems such as not being able to benefit life
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[0017] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0018] like figure 1 It is a block diagram of the overall design of the electronic doorbell, including two parts, the main module and the slave module. The data transmission between master and slave modules adopts 315MHz wireless radio frequency transceiver module.
[0019] The main module mainly realizes functions such as key input, information processing and control, wireless data sending and receiving, ringing, and displaying. Considering cost and convenience, the main control chip chooses 51 single-chip microcomputer STC89C52RC, which can work in low power consumption mode, and select idle and power-down modes through software. The wireless module adopts a 315MHz wireless radio frequency transceiver module with a transmission distance of more than ten to tens of meters and a strong ability to penetrate walls, which can meet the needs ...
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