ESP_NOW Send fails often

Tagged: ESP-NOW

This topic has 3 replies, 2 voices, and was last updated 1 year, 10 months ago by Renzo Mischianti.

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- 9 January 2023 at 06:13 #23831
  thowa
  Participant
  Hi,
  I’m having the board that Renzo presented on this side http://mischianti.org/esp32-wemos-lolin32-high-resolution-pinout-and-specs/ -> Wemos Lolin32
  
  Unfortunatly I’m having issue sending data using ESP-NOW with this board (with other boards e.g. ESP-Wrover or ESP8266-12F it works fine)
  
  I have attached the code of the sending application.
  It gives this output:
```
ESP-Now registered as sender on <<< ESP 32 >>> 
Number          Send status     Callback status
t#: 1           success         Delivery Fail  
t#: 2           success         Delivery Fail
t#: 3           success         Delivery Fail
t#: 4           success         Delivery Fail
t#: 5           success         Delivery Fail
t#: 6           success         Delivery Fail
t#: 7           success         Delivery Fail
t#: 8           success         Delivery Fail
t#: 9           success         Delivery Fail
t#: 10          success         Delivery Fail
t#: 11          success         Delivery Fail
t#: 12          success         Delivery Success
t#: 13          success         Delivery Fail
t#: 14          success         Delivery Fail
t#: 15          success         Delivery Fail
```
  As said, the same code works on another ESP32 and also on ESP 8266 without any issue.
  I’m puzzled
  
  Attachments:
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- 9 January 2023 at 16:28 #23862
  Renzo Mischianti
  Keymaster
  Hi Thowa,
  It’s very strange, the board uses esp-wroom-32 a standard IC not different from others.
  
  It’s possible that the power supply isn’t sufficient when you use this board?
  
  Bye Renzo
- 9 January 2023 at 21:54 #23873
  thowa
  Participant
  Not quite sure, if the issue might be cause by the power supply. It is just connected to my laptop (as all the other modules as well)
  I purchased another module with Wrover-E as well (and LiPo Connector, which is crutial for my application) This one work like a charm as well.
  Perhaps i just got a shitty Lolin32 ?!?
- 10 January 2023 at 14:32 #23874
  Renzo Mischianti
  Keymaster
  Hi Thowa,
  hehehehe.. It’s possible, but try to connect the module only with the battery or add power to 3v pin.
  Bye Renzo
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