Ok, my fault, i didn´t seen to datasheet of adum1201 for minimal voltage of logic. But i think, there isn´t problem with voltage level ESP8266 on WEMOS. Here is example with arduino, and there is 5V logic, and in another example with Raspberry is 3V3 logic. Maybe extra precautions is add resistor on RX and TX signal. But this is only idea
air quality CO2 sensor
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air quality CO2 sensor - by borovecek - 22-05-2019, 09:16
RE: air quality CO2 sensor - by werk_ag - 22-05-2019, 16:36
RE: air quality CO2 sensor - by borovecek - 23-05-2019, 06:25
RE: air quality CO2 sensor - by hornychz - 23-05-2019, 07:29
RE: air quality CO2 sensor - by werk_ag - 23-05-2019, 22:45
RE: air quality CO2 sensor - by borovecek - 23-05-2019, 09:11
RE: air quality CO2 sensor - by borovecek - 24-05-2019, 06:11
RE: air quality CO2 sensor - by werk_ag - 24-05-2019, 18:29
RE: air quality CO2 sensor - by 41south - 24-05-2019, 10:43
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