Minor text change (#1863)

This commit is contained in:
johanf85 2022-02-19 12:37:52 +01:00 committed by GitHub
parent 5f19d7e9fc
commit fdc8fd5cbb
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

View File

@ -17,13 +17,13 @@ The ``modbus_controller`` component uses the modbus component
Hardware setup
--------------
I'm using a RS 485 module connected to an ESP32
A RS 485 module connected to an ESP32, for example:
.. figure:: /images/rs485.jpg
See [How is this RS485 Module Working?](https://electronics.stackexchange.com/questions/244425/how-is-this-rs485-module-working) on stackexchange for more details
See `How is this RS485 Module Working? <https://electronics.stackexchange.com/questions/244425/how-is-this-rs485-module-working>`__ on stackexchange for more details
The controller connects to the UART of the MCU. For ESP32 GPIO PIN 16 to TXD PIN 17 to RXD are the default ports but any other pins can be used as well . 3.3V to VCC and GND to GND.
The controller connects to the UART of the MCU. For ESP32 GPIO PIN 16 to TXD PIN 17 to RXD are the default ports but any other pins can be used as well. 3.3V to VCC and GND to GND.
.. note::