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Trouble with rs485 and Touchberry 7"


The question has been closed for reason: not relevant or out dated

Ricard Franch Argullol
on 03/07/2023 05:19:10

Hi, I'm trying to get a weather station to communicate with my touchberry 7 " via rs485, I set the jumper to half duplex and the two jumpers in point 2.2 of your manual as RS485 configuration, I connected data + on A and data- on B, on node red I using the serial in node set as the weather station booklet (9600 baud, 8 data bits, no parity, 1 bit stop) the interface is / dev / ttyS0 as your manual. When I power on the meteo station I must receive a series of characters but I am not receiving anything. Am I doing something wrong or forgetting something?