# I'm unable to receive data on the serial monitor of the RECEIVER(arduino)

**URL:** <https://forums.digi.com/t/im-unable-to-receive-data-on-the-serial-monitor-of-the-receiver-arduino/22293>\
**Category:** XBee Programamble (S2C & 900 HP)\
**Tags:** xbees2\
**Created:** [March 23, 2021, 9:13am UTC](https://forums.digi.com/t/im-unable-to-receive-data-on-the-serial-monitor-of-the-receiver-arduino/22293 "2021-03-23T09:13:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Erickgregs](https://avatars.discourse-cdn.com/v4/letter/e/e9bcb4/32.png) [@Erickgregs](https://forums.digi.com/u/Erickgregs)\
**Post date:** [March 23, 2021, 9:13am UTC](https://forums.digi.com/t/im-unable-to-receive-data-on-the-serial-monitor-of-the-receiver-arduino/22293/1 "2021-03-23T09:13:36Z")

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Please i need help.I’m using XBee S2 one configured as COORDINATOR AT and the other one as ROUTER AT. I’m trying to send a simple data from one Arduino to the next Arduino using XBee. The problem is that i can’t see the transmitted data on the serial monitor of the receiver Arduino but i can see it on the CONSOLE of the XCTU when i connect the ROUTER.

TRANSMITTER  
int a;  
void setup() {  
Serial.begin(9600);  
}

void loop() {  
a=399;  
Serial.println(a);  
delay(2000);  
}

RECEIVER

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

void loop() {  
if (Serial.available()!=0)  
{  
int b=Serial.read();  
Serial.println(b);

}  
}

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<div class="post-metadata">

**Author:** ![mvut](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/mvut/32/31_2.png) [@mvut](https://forums.digi.com/u/mvut)\
**Post date:** [March 23, 2021, 9:17am UTC](https://forums.digi.com/t/im-unable-to-receive-data-on-the-serial-monitor-of-the-receiver-arduino/22293/2 "2021-03-23T09:17:43Z")

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Most arduino code or libraries use the XBee in API mode.

Also check that the two radios are associated to each other. Then make sure that the DL and DH are set to the other units SL and SH values.