ESP-NOW "Exponent has no digits"

Q&A Forum › Category: ESP32 › ESP-NOW "Exponent has no digits"

Jack Douglas asked 4 years ago

Would appreciate help with the following error :

Arduino: 1.8.13 (Windows 10), Board: “DOIT ESP32 DEVKIT V1, 80MHz, 115200, None”
ESP32_Sender:10:40: error: exponent has no digits
uint8_t broadcastAddress[] = {3C:71:BF:9E:1B:84};
^
ESP32_Sender:10:31: error: unable to find numeric literal operator ‘operator””C’
uint8_t broadcastAddress[] = {3C:71:BF:9E:1B:84};
^
ESP32_Sender:10:33: error: expected ‘}’ before ‘:’ token
uint8_t broadcastAddress[] = {3C:71:BF:9E:1B:84};
^
ESP32_Sender:10:33: error: expected ‘,’ or ‘;’ before ‘:’ token
ESP32_Sender:10:48: error: expected declaration before ‘}’ token
uint8_t broadcastAddress[] = {3C:71:BF:9E:1B:84};
^
Multiple libraries were found for “WiFi.h”
Used: C:\Users\Jack\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4\libraries\WiFi
Not used: C:\Program Files (x86)\Arduino\libraries\WiFi
exit status 1
exponent has no digits

Question Tags: Esp-now

3 Answers

0 Vote Up Vote Down

Sara Santos Staff answered 4 years ago

Hi.
If the MAC address is 3C:71:BF:9E:1B:84,
In your code, you should have:

uint8_t broadcastAddress[] = {0x3C, 0x71, 0xBF, 0x9E, 0x1B, 0x84};

Regards,
Sara

0 Vote Up Vote Down

Jack Douglas answered 4 years ago

OK got it. I had replaced the entire MAC address.

0 Vote Up Vote Down

Sara Santos Staff answered 4 years ago

Great!
I’ll mark this issue as resolved.
If you need further help, you just need to open a new question in our forum.
Regards,
Sara