perja12 · August 31, 2017 21:39
diff --git a/serial_test.ino b/serial_test.ino
 /*
 * How to decode serial output from Arduino Uno with a scope. Tested with Keysight DSOX1102G.
 * 
 * 1. Connect probe on channel 1 (with 10x) to TX (pin 1) and ground clip to GND.
 * 2. Scope settings:
 *    a. Press "default setup" to get into a known state.
 *    b. Press "trigger" button and choose mode = normal.
 *    c. Set to 1 V per division and time scale to 1 ms per time divison.
 *    d. Press "bus" and choose "serial bus" and "UART/RS232" as mode.
 *    e. Signals menu: RX 1, threshold 3V
 *    f. Bus config: #bits = 8, parity = none, baud rate = 9600, polarity = idle high, bit order = lsb
 *    g. Settings: base = ASCII 
 */

 void setup() {
  Serial.begin(9600);
  pinMode(1, OUTPUT);
 }

 void loop() {
  Serial.print("Hello");
  delay(1000);
  Serial.print("World!");
  delay(1000);
 }
	/*
	* How to decode serial output from Arduino Uno with a scope. Tested with Keysight DSOX1102G.
	*
	* 1. Connect probe on channel 1 (with 10x) to TX (pin 1) and ground clip to GND.
	* 2. Scope settings:
	* a. Press "default setup" to get into a known state.
	* b. Press "trigger" button and choose mode = normal.
	* c. Set to 1 V per division and time scale to 1 ms per time divison.
	* d. Press "bus" and choose "serial bus" and "UART/RS232" as mode.
	* e. Signals menu: RX 1, threshold 3V
	* f. Bus config: #bits = 8, parity = none, baud rate = 9600, polarity = idle high, bit order = lsb
	* g. Settings: base = ASCII
	*/

	void setup() {
	Serial.begin(9600);
	pinMode(1, OUTPUT);
	}

	void loop() {
	Serial.print("Hello");
	delay(1000);
	Serial.print("World!");
	delay(1000);
	}