| Linduino 1.3.0 Linear Technology Arduino-Compatible Demonstration Board

CN0416_SerialPassthrough.ino
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1 /*
2 Modified from:
3 SerialPassthrough sketch
4
5 Added assertion of Enable signal to RS485 driver.
6
7
8 Some boards, like the Arduino 101, the MKR1000, Zero, or the Micro, have one
9 hardware serial port attached to Digital pins 0-1, and a separate USB serial
10 port attached to the IDE Serial Monitor. This means that the "serial
11 passthrough" which is possible with the Arduino UNO (commonly used to interact
12 with devices/shields that require configuration via serial AT commands) will
13 not work by default.
14
15 This sketch allows you to emulate the serial passthrough behaviour. Any text
16 you type in the IDE Serial monitor will be written out to the serial port on
17 Digital pins 0 and 1, and vice-versa.
18
19 On the 101, MKR1000, Zero, and Micro, "Serial" refers to the USB Serial port
20 attached to the Serial Monitor, and "Serial1" refers to the hardware serial
21 port attached to pins 0 and 1. This sketch will emulate Serial passthrough
22 using those two Serial ports on the boards mentioned above, but you can change
23 these names to connect any two serial ports on a board that has multiple ports.
24
25 created 23 May 2016
26 by Erik Nyquist
27 */
28
29 void setup() {
30 pinMode(2, OUTPUT);
31 digitalWrite(2, LOW);
32 Serial.begin(9600);
33 Serial1.begin(9600);
34 }
35
36 void loop() {
37 if (Serial.available()) { // If anything comes in Serial (USB),
38 digitalWrite(2, HIGH);
39 delay(1);
40 Serial1.write(Serial.read()); // read it and send it out Serial1 (pins 0 & 1)
41 digitalWrite(2, LOW);
42 }
43
44 if (Serial1.available()) { // If anything comes in Serial1 (pins 0 & 1)
45 Serial.write(Serial1.read()); // read it and send it out Serial (USB)
46 }
47 }
setup
static void setup()
Definition: CN0416_SerialPassthrough.ino:29
loop
static void loop()
Definition: CN0416_SerialPassthrough.ino:36