45 lines
1.0 KiB
Arduino
45 lines
1.0 KiB
Arduino
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/*
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RS-485 Passthrough
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This sketch relays data sent and received between the Serial port and the RS-485 interface
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Circuit:
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- MKR board
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- MKR 485 Shield
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- ISO GND connected to GND of the RS-485 device
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- Y connected to A of the RS-485 device
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- Z connected to B of the RS-485 device
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- A connected to Y of the RS-485 device
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- B connected to Z of the RS-485 device
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- Jumper positions
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- FULL set to ON
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- Z \/\/ Y set to ON, if the RS-485 device doesn't provide termination
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- B \/\/ A set to ON, if the RS-485 device doesn't provide termination
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created 4 July 2018
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by Sandeep Mistry
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*/
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#include <ArduinoRS485.h>
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void setup() {
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Serial.begin(9600);
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RS485.begin(9600);
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// enable transmission, can be disabled with: RS485.endTransmission();
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RS485.beginTransmission();
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// enable reception, can be disabled with: RS485.noReceive();
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RS485.receive();
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}
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void loop() {
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if (Serial.available()) {
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RS485.write(Serial.read());
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}
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if (RS485.available()) {
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Serial.write(RS485.read());
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}
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}
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