Changed ATmega168 port to ATmega328 on Uno R3 with DFR0259 RS485 shield (#784)

* Changed ATmega168 example for ATmega328 on Arduino Uno R3 with DFR0259 RS485 shield. Added ADC interface from BDK port and mapped to some AV objects. Removed MS/TP MAC address DIP switch GPIO and moved MS/TP configuration to AV objects. Added AV units property. Added some Uno R3 Digital Inputs and outputs mapped to some BV. Added AVR EEPROM from BDK port and mapped some non-volatile data including MAC address and max manager and baud rate, device ID and names and description and location.
2024-09-27 14:42:47 -05:00
parent 6e4034a92d
commit 4781582204
60 changed files with 2943 additions and 5661 deletions
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+# Introduction
+
+This is an Arduino RS485 shield, especially designed for the Arduino
+controller board. It can easily convert the UART to the RS485.
+This shield integrates:
+
+* a standard RS485 port
+* a mini RS485 port (PH2.0 interface)
+* RS485 headers
+* provides the prototyping areas
+* configurable automatic or manual transmission (RTS) mode
+* configurable operation or programming mode
+
+# Specification
+
+* Power module: +5.0V
+* Module size: 55mmx53mm
+* 16 digital IO port (including a I2C interface)
+* 6 analog IO port and power
+* Operation/programming mode switch
+* Automatic/manual transceiver mode switch (When in manual transceiver mode, the enable end is the 2nd digital IO port)
+* Transceiver indicating LED
+* Standard RS485 interface, mini RS485 interface(PH2.0) and RS485 pins
+* prototyping area
+* Reset button
+
+# Pin Definition
+
+![pin-definition](images/RS485-EN.png)
+
+## Operation and programming mode switch:
+
+* To OFF, you can download the program for the Arduino controller.
+* To ON, the shield will convert the UART to the RS485.
+
+## Transceiver mode switch:
+
+* To AUTO, the shield is automatically sending and receiving data so you
+  do not care about operation timing
+* To MANU, the shield is in manual transceiver status, and the enable end
+  is the 2nd digital IO port. Enabling high-side power Ping to sending
+  state while the low level of the receiving state.
+
+# Usage Setup
+
+When the RS485 shield is installed on your Arduino controller,
+and then you will wire the RS485 shiled with USB-RS485 converter
+to connect terminals, namely: A pair of A, B on B, GND on GND,
+then download the following sample code.
+
+Note: Downloading code, run / program mode switch must hit the OFF position,
+otherwise it will lead to the download fails. When downloaded, it is complete
+to ON, and the shield to normal use).
+
+# Schematic
+
+![schematic](images/DFR0259.jpg)