Hi, I bought a new board and I can only connect to wifi when I touch with my finger (some other objects might also work) above or on the side of the antenna or under the antenna (under the pcb). this is only help when i try to connect to wifi but with esp-now delivery is failed.
I tried a separate power supply but still the same. What can cause that issue and dose anyone have a fix for this?
ESP32-C3 SuperMini connecting to wifi work only when touching antenna
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Re: ESP32-C3 SuperMini connecting to wifi work only when touching antenna
Thank you, it worked. I needed also WIFI_STA before and 40/10db.MicroController wrote: ↑Thu Sep 19, 2024 7:47 amMay be the same issue: https://esp32.com/viewtopic.php?f=2&t=41899#p137764
Code: Select all
WiFi.mode(WIFI_STA);
esp_wifi_set_max_tx_power(40);
Re: ESP32-C3 SuperMini connecting to wifi work only when touching antenna
It is related to antenna design. I made a custom board where it was very hard to implement the recommended antenna keep-out clearance and used a similar ceramic antenna. I had to reduce tx power to get it to connect to networks. This is not an issue if the board is always close to the router.
Re: ESP32-C3 SuperMini connecting to wifi work only when touching antenna
I tested the workaround
Then I saw in
http://esp32.io/viewtopic.php?f=19&t=42069
the pin 21 issue.
I soldered out the single row male pin 21 and removed
again and it connected every time.
Code: Select all
WiFi.mode(WIFI_STA);
esp_wifi_set_max_tx_power(40);
http://esp32.io/viewtopic.php?f=19&t=42069
the pin 21 issue.
I soldered out the single row male pin 21 and removed
Code: Select all
esp_wifi_set_max_tx_power(40);
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