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occurred Aug 22, 2019 at 6:00

Fixed syntax highlighting, code alignment, added tag.

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edited Aug 21, 2019 at 22:19

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I have a Sparkfun Arduino Pro Micro with an ATmega32u4 on it and a Roving Networks RN32 Bluetooth Module

Theoretically, I should be able to solder the Rx of the Bluetooth to the Tx on the arduino and vice versa and I should get serial communication over the Bluetooth.

Of course, I do not. However, as a first question: How do I get my Arduino to transmit data over the Tx pin?

I uploaded this to the Arduino with no hiccups:

    void setup(){ 
        Serial.begin(9600);
    }

    void loop(){
        Serial.print("HelloWurld");
    }

void setup(){ 
  Serial.begin(9600);
}

void loop(){
  Serial.print("HelloWurld");
}

However, when I plug up my o-scope, I see no signal over the Tx line. Nada. I see data coming over the USB into the COM port on my computer, but nothing over the Tx pin.

How do I get the Arduino to put out serial data on the Tx pin?

I have a Sparkfun Arduino Pro Micro with an ATmega32u4 on it and a Roving Networks RN32 Bluetooth Module

Theoretically, I should be able to solder the Rx of the Bluetooth to the Tx on the arduino and vice versa and I should get serial communication over the Bluetooth.

Of course, I do not. However, as a first question: How do I get my Arduino to transmit data over the Tx pin?

I uploaded this to the Arduino with no hiccups:

    void setup(){ 
        Serial.begin(9600);
    }

    void loop(){
        Serial.print("HelloWurld");
    }

However, when I plug up my o-scope, I see no signal over the Tx line. Nada. I see data coming over the USB into the COM port on my computer, but nothing over the Tx pin.

How do I get the Arduino to put out serial data on the Tx pin?

I have a Sparkfun Arduino Pro Micro with an ATmega32u4 on it and a Roving Networks RN32 Bluetooth Module

Theoretically, I should be able to solder the Rx of the Bluetooth to the Tx on the arduino and vice versa and I should get serial communication over the Bluetooth.

Of course, I do not. However, as a first question: How do I get my Arduino to transmit data over the Tx pin?

I uploaded this to the Arduino with no hiccups:

void setup(){ 
  Serial.begin(9600);
}

void loop(){
  Serial.print("HelloWurld");
}

However, when I plug up my o-scope, I see no signal over the Tx line. Nada. I see data coming over the USB into the COM port on my computer, but nothing over the Tx pin.

How do I get the Arduino to put out serial data on the Tx pin?

Minor fixes and inlined the links

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edited Feb 6, 2016 at 10:54

Greenonline

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I have a Sparkfun Arduino Pro Micro with an ATmega32u4 on it:

https://www.sparkfun.com/products/12640Sparkfun Arduino Pro Micro with an ATmega32u4 on it

and a Roving Networks RN32 Bluetooth Module:

https://www.sparkfun.com/products/10253Roving Networks RN32 Bluetooth Module

Theoretically, I should be able to solder the Rx of the Bluetooth to the Tx on the arduino and vice versa and I should get serial communication over the Bluetooth.

Of course, I do not. However, as a first question: How do I get my arduinoArduino to transmit data over the Tx pin?

I uploaded this to the arduinoArduino with no hiccups:

    void setup(){ 
        Serial.begin(9600);
    }

    void loop(){
        Serial.print("HelloWurld");
    }

However, when I plug up my o-scope, I see no signal over the txTx line. Nada. I see data coming over the USB into the commCOM port on my computer, but nothing over the txTx pin.

How do I get the arduinoArduino to put out serial data on the txTx pin?

I have a Sparkfun Arduino Pro Micro with an ATmega32u4 on it:

https://www.sparkfun.com/products/12640

and a Roving Networks RN32 Bluetooth Module:

https://www.sparkfun.com/products/10253

Theoretically, I should be able to solder the Rx of the Bluetooth to the Tx on the arduino and vice versa and I should get serial communication over the Bluetooth.

Of course, I do not. However, as a first question: How do I get my arduino to transmit data over the Tx pin?

I uploaded this to the arduino with no hiccups:

    void setup(){ 
        Serial.begin(9600);
    }

    void loop(){
        Serial.print("HelloWurld");
    }

However, when I plug up my o-scope, I see no signal over the tx line. Nada. I see data coming over the USB into the comm port on my computer, but nothing over the tx pin.

How do I get the arduino to put out serial data on the tx pin?

I have a Sparkfun Arduino Pro Micro with an ATmega32u4 on it and a Roving Networks RN32 Bluetooth Module

Theoretically, I should be able to solder the Rx of the Bluetooth to the Tx on the arduino and vice versa and I should get serial communication over the Bluetooth.

Of course, I do not. However, as a first question: How do I get my Arduino to transmit data over the Tx pin?

I uploaded this to the Arduino with no hiccups:

    void setup(){ 
        Serial.begin(9600);
    }

    void loop(){
        Serial.print("HelloWurld");
    }

However, when I plug up my o-scope, I see no signal over the Tx line. Nada. I see data coming over the USB into the COM port on my computer, but nothing over the Tx pin.

How do I get the Arduino to put out serial data on the Tx pin?

Clarify what specific board is being used, since it being a 32u4 board is the source of trouble

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edit approved May 10, 2014 at 1:28

Chris Stratton

5.4k
21
40

Arduino Pro Micro, get data out of Tx pin?

Thank you for taking the time to look that this question.

I have one of thesea Sparkfun Arduino Pro Micro with an ATmega32u4 on it:

https://www.sparkfun.com/products/12640

and one of thesea Roving Networks RN32 Bluetooth Module:

https://www.sparkfun.com/products/10253

Theoretically, I should be able to solder the Rx of the Bluetooth to the Tx on the arduino and vice versa and I should get serial communication over the Bluetooth.

Of course, I do not. However, as a first question: How do I get my arduino to transmit data over the Tx pin?

I uploaded this to the arduino with no hiccups:

    void setup(){ 
        Serial.begin(9600);
    }

    void loop(){
        Serial.print("HelloWurld");
    }

However, when I plug up my o-scope, I see no signal over the tx line. Nada. I see data coming over the USB into the comm port on my computer, but nothing over the tx pin.

How do I get the arduino to put out serial data on the tx pin?

Arduino, get data out of Tx pin?

Thank you for taking the time to look that this question.

I have one of these: https://www.sparkfun.com/products/12640

and one of these: https://www.sparkfun.com/products/10253

Theoretically, I should be able to solder the Rx of the Bluetooth to the Tx on the arduino and vice versa and I should get serial communication over the Bluetooth.

Of course, I do not. However, as a first question: How do I get my arduino to transmit data over the Tx pin?

I uploaded this to the arduino with no hiccups:

    void setup(){ 
        Serial.begin(9600);
    }

    void loop(){
        Serial.print("HelloWurld");
    }

However, when I plug up my o-scope, I see no signal over the tx line. Nada. I see data coming over the USB into the comm port on my computer, but nothing over the tx pin.

How do I get the arduino to put out serial data on the tx pin?

Arduino Pro Micro, get data out of Tx pin?

I have a Sparkfun Arduino Pro Micro with an ATmega32u4 on it:

https://www.sparkfun.com/products/12640

and a Roving Networks RN32 Bluetooth Module:

https://www.sparkfun.com/products/10253

Theoretically, I should be able to solder the Rx of the Bluetooth to the Tx on the arduino and vice versa and I should get serial communication over the Bluetooth.

Of course, I do not. However, as a first question: How do I get my arduino to transmit data over the Tx pin?

I uploaded this to the arduino with no hiccups:

    void setup(){ 
        Serial.begin(9600);
    }

    void loop(){
        Serial.print("HelloWurld");
    }

However, when I plug up my o-scope, I see no signal over the tx line. Nada. I see data coming over the USB into the comm port on my computer, but nothing over the tx pin.

How do I get the arduino to put out serial data on the tx pin?

serial bluetooth arduino-pro-micro

Post Migrated Here from electronics.stackexchange.com (revisions)

occurred May 8, 2014 at 22:14

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asked May 8, 2014 at 22:08

user3320919

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Arduino Pro Micro, get data out of Tx pin?

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