I‘m trying to message more than 20 devices, so i‘m deleting the peer after messaging it.
Basically i call esp_now_del_peer after esp_now_send.
However, it doesn‘t work. The 21st device doesn‘t seem to receive directed messages.

Am I doing something wrong or expecting something that doesn‘t work?

Edit: i think this fixes it. when i deinitialize esp_now i also have to add the broadcastaddress back to the peer list. memcpy(&peerInfo.peer_addr, messageHandler.broadcastAddress, 6); peerInfo.channel = 0; peerInfo.encrypt = false; // Add peer if (esp_now_add_peer(&peerInfo) != ESP_OK){ Serial.prin...

This is the code that runs before and after light sleep: ``` WiFi.disconnect(); WiFi.mode(WIFI_OFF); esp_now_deinit(); esp_sleep_enable_timer_wakeup(sleepTime); esp_light_sleep_start(); WiFi.mode(WIFI_STA); if (esp_now_init() != 0) { Serial.println("Error initializing ESP-NOW"); return; } esp_now_re...

I'm struggling to find out which oscillator exactly RTC_SLOW_FREQ_RTC is referring to on my ESP32 S3 board (custom built). this is the default setting that I get out of rtc_clk_slow_src_get() . Documentation is sparse at best, so... this is my source for this. https://github.com/espressif/esp-idf/bl...

I am using an ESP32 S3-WROOM-1 R16N8 and made the dumb mistake of checking the XTAL pins when moving my design from an S2.
So instead of attaching them to Pins 21 and 22 they are attached to Pins 8 and 9.

Is there a way of multiplexing thiss? Or am i just outta luck?

In my design I have a LED attached to the board. GPIO17 is attached to the BLUE pin of the LED. When i put my board into BOOT mode (pull GPIO0 to ground), the LED turns on Blue, meaning - i assume - that GPIO17 is set to HIGH during Boot? In my previous version of the board i had the Blue pin attach...

do i read this correctly that I would have to add a CP2102 to my design?

I'm creating a Board with an ESP32 S3.
Is there a comprehensive guide to handle the IO0 and EN pins in a way so that I can get in and out of boot mode via software? I know the dev boards do it, but honestly i'm just lacking the right search terms.
Greatful for any help!

to answer my own question: This happens when you call an esp_now_send before adding the recipient address as peer.

I'm getting my ESP32 into a mode where an esp_now_send returns 12393, which, in turn, esp_err_to_name() tells me is an UNKNOWN ERROR. At the sime time something seems to have clogged esp_now, as no messages are going out. Unfortunately this is extremely hard to debug, so maybe someone knows what hav...