# Serial port does not display data for ultrasonic sensor

**URL:** <https://forums.losant.com/t/serial-port-does-not-display-data-for-ultrasonic-sensor/2646>\
**Category:** Help\
**Tags:** dashboard\
**Created:** [February 15, 2020, 6:07pm UTC](https://forums.losant.com/t/serial-port-does-not-display-data-for-ultrasonic-sensor/2646 "2020-02-15T18:07:37Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![vijay\_siva](https://avatars.discourse-cdn.com/v4/letter/v/e9bcb4/32.png) [@vijay\_siva](https://forums.losant.com/u/vijay_siva)\
**Post date:** [February 15, 2020, 6:07pm UTC](https://forums.losant.com/t/serial-port-does-not-display-data-for-ultrasonic-sensor/2646/1 "2020-02-15T18:07:37Z")

</div>

. basic code for serial port works well.  
void setup() {  
Serial.begin(115200);  
while(!Serial) { delay(100); }  
}

void loop() {  
Serial.println(“Hello!”);  
delay(1000);  
}  
Serial port does not display data for ultrasonic sensor . Code uploaded sucessfully to node mcu version 1.0 but no data on serial monitor when i am pressing reset button i am getting the symbols as first boot code messages. Whether i need to update any libraries. my libraries are updated.  
I have installed esp8266 and thingspeak library too

 ![blank serial port](https://us1.discourse-cdn.com/flex015/uploads/getstructure/original/2X/b/b9032b6093a35cbbec08de129826c914cfc49661.png)

---

<div class="post-metadata">

**Author:** ![JuliaKempf](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.losant.com/juliakempf/32/2446_2.png) [@JuliaKempf](https://forums.losant.com/u/JuliaKempf)\
**Post date:** [February 17, 2020, 11:08am UTC](https://forums.losant.com/t/serial-port-does-not-display-data-for-ultrasonic-sensor/2646/2 "2020-02-17T11:08:20Z")

</div>

Hello!

We here at the Losant Forums are happy to help with problems and questions surrounding the Losant Platform. I do not see a Losant library included in your partial screenshot, are you having difficulties connecting to Losant?

For any issues related to your hardware, I would recommend checking out the NodeMCU documentation or the Arduino Forums.

Thanks so much!  
Julia