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59% OFF SONOFF® Transmissor Remoto sem Fio 1 Canal Adesivo RF TX Inteligente para Casa Sala de Estar Quarto US$4.07 US$9.99 View It

Geral:

jeever 09/10/2018

This wall transmitter contains, see the picture below, amazingly little electronics. What is immediately noticeable is that there is space on the PCB for three print switches, of which only the middle one is present. A handyman can therefore make a three-channel transmitter from this single-channel transmitter with some soldering work. The large transmitting antenna that fills approximately half of the print surface provides a wide range or 25 m. The only chip on the PCB is an eV1527 and when you look up the datasheet of this IC it appears that this chip is internally programmed on one out of a total of 1,048,576 address codes. After transmitting this 20-bit wide address code, the switch transmits four data bits.

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Dopess doyou know it et sends 1or 2 codes? as in on code and off code
Resposta 20/08/2019

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