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jantenhove / GoodWeLogger

ESP8266 based logger for GoodWe inverters. Can upload to pvoutput and publishes MQTT topics
GNU General Public License v3.0
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RS485 converter requires a h/l signal to switch between transmit and receive #14

Closed meteosat007 closed 4 years ago

meteosat007 commented 5 years ago

I have the software poliing out and I have a LC-Electronics MAX485CSA TTL level RS-485 and RS-485 serial communication converter module connected but it has two pins that are et either high or low depending on whether in TX or RX mode.

Have you come across this before and can I add another data output to control the state into your code? I have TLW1000NSU Goodwe inverter and Wifi doesnt work to portal, usb works to EZ Explorer but really want to get the local data into MQTT.

All help appreciated.

4pin header
    DI - Driver in (the transmitter pin)
    DE - Driver enable (enabled when this pin is HIGH)
    RE - Receiver enable (enabled when this pin is LOW)
    RO - Receiver out
4pin header
    VCC (+5VDC)
    B - Connect to pin B of the other 485 IC
    A - Connect to pin A of the other 485 IC
    GND (-)
Screw terminal block
    B - Connect to pin B of the other 485 IC
    A - Connect to pin A of the other 485 IC

image

jantenhove commented 5 years ago

Totally missed this one, sorry. If this is still an issue for you/others, please comment.