ESP32-WROOM-32U: Is bad signal strength expected without external antenna? #115
-
|
Can anyone confirm whether ESP32-WROOM-32U has very bad bluetooth signal if not attaching an external antenna? I barely get the connection working when using the device with N64. If i'm close to 50 cm from the device it kind of works, but it is not 100 % stable even then. Same instability noticed when connecting to the device via blueretro.io. Lots of dropped connections. |
Beta Was this translation helpful? Give feedback.
Replies: 1 comment 6 replies
-
|
No need to open 2 topic for same thing, Pretty much no one is using external antenna. Its wireless, so it's possible your specific location got a lot of noise. (Like in dense appartement complex) Also It's possible you got a single device making interference to an otherwise perfect environment. Cheap wireless video surveillance/baby camera are notorious for this. Remove the 3.3v connection from n64, Keep only data and GND. Power from USB. Is it better that way? You could also have a rogue Bluetooth device always trying to connect to Blueretro. |
Beta Was this translation helpful? Give feedback.
-
|
ok I didn't realize you got an ESP without internal antenna. You need to connect an antenna on the U.FL connector for sure. From the log I see N64 ctrl connect but then disconnect on his own |
Beta Was this translation helpful? Give feedback.
-
|
Aha, ok. So in hindsight, WROOM-32S is the better choice as long as not external antenna is wanted, right? I didn't see the diff between 32U and 32S before I started. |
Beta Was this translation helpful? Give feedback.
-
|
Yes |
Beta Was this translation helpful? Give feedback.
-
|
Thank you! I will try with internal antenna when I get hold of one. |
Beta Was this translation helpful? Give feedback.
-
|
Just wanted to confirm the obvious: It works much better with a model with built-in antenna :) I got 32D as recommended in Bill of Material. |
Beta Was this translation helpful? Give feedback.
No need to open 2 topic for same thing,
Pretty much no one is using external antenna.
Its wireless, so it's possible your specific location got a lot of noise. (Like in dense appartement complex)
Also It's possible you got a single device making interference to an otherwise perfect environment. Cheap wireless video surveillance/baby camera are notorious for this.
Remove the 3.3v connection from n64, Keep only data and GND. Power from USB. Is it better that way?
You could also have a rogue Bluetooth device always trying to connect to Blueretro.
With the USB power setup mentioned previously, Try to get the logs maybe I can spot something in it.
https://github.com/darthcloud/BlueRetro/wiki/G…