UART RS485 3.5 inch panel DLC35010R
I'm trying to figure out if RS485 will work on my 3.5 inch DLC35010R display panel directly to UART. In the ESP32-S3 datasheet it shows that I can enable RS485 full or half duplex. The pinout for the four pins on uart on my panel say 5 volt, Gnd, tx and rx. I'm fairly sure I'm not going to see full duplex, because of the 5 and 0 volt rail. Hoping for half duplex at this point. The datasheets/diagrams do not show where the TX/RX lines go for uart. The UART example on elecrow's website for this panel keeps asking for <SoftwareSerial.h>. Which is meant to be built in. And I tried a few libraries, but nothing worked. Everything else thus far works great though.
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Dear Customer,
Sorry, this issue requires some time for our team to analyze. I will get back to you as soon as we finish the analysis. Please wait patiently.
We apologize for the inconvenience caused.
Warm regards,
No worries. I probably should've emailed direct. Love the panel / technology btw. Any help is much appreciated.
Dear geomeo123,
Thank you for your understanding.
Sorry, you cannot directly use a UART to connect to RS485. This is a standard UART (TTL level), not an RS485 interface. You must add an RS485 transceiver.
Common transceivers include: MAX485, SP3485, and SN75176. Half-duplex operation is possible.
Also, Yes, you can also contact us through email.
Thanks！
Warm regard,