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mk_glover The board is self explanatory and is designed to be powered from the USB interface. It uses an FTDI FT232RL USB to UART chip with TTL levels on the serial interface. The datasheet for the chip is is available on the FTDI website.:- DS_FT232R.pdf. However, the board and chip does support being powered by a +3.3V to +5.25V supply on the "5V" hole for the device core. This is the Vcc pin of the chip. Now, the hole labelled "VCC" is connected to the VCCIO pin of the FTDI device and in the words of FTDI:- "+1.8V to +5.25V supply to the UART Interface and CBUS group pins (1...3, 5, 6, 9...14, 22, 23). In USB bus powered designs connect this pin to 3V3OUT pin to drive out at +3.3V levels, or connect to VCC to drive out at 5V CMOS level. This pin can also be supplied with an external +1.8V to +2.8V supply in order to drive outputs at lower levels. It should be noted that in this case this supply should originate from the same source as the supply to VCC. This means that in bus powered designs a regulator which is supplied by the +5V on the USB bus should be used." Care may be required for supply isolation in your application.

2021-11-28 09:15:11 Utile (0)
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D: this switch does work no wifi connection situations ?

Domandata da pathumni il 2020-10-18 01:21:27

mk_glover The switch does not use WiFi in any way. It transmits at 433 MHz using the EV1527 protocol. It's a very nice device.

2020-10-18 06:29:18 Utile (0)
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mk_glover It'sa changeover relay, so you could say both high and low turn the relay on, depending what "On" means to you. IN terms of energising the relay coil, in accordance with normal practice, the In line is active LOW. On the output side, the centre terminal is common and "BESTEP" side is normally open.

2020-02-11 01:50:15 Utile (0)
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