Can ESP32 support WIFI, BT, BLE, WSS, MQTT and decorder at the same time?

[sakuranda]

Hi,
ESP32 only has 320kb RAM. Although we have 8M PSRAM, but it's still leaked of memory.

There's our functions to be achieved:
1. Running WIFI STA to commuicate with phone, BLE to commuicate and locatilze with other esp32, BT audio a2dp to play music with another esp32.
2. Using WebSockets to authorize the server to retrieve data, using MQTT or other protocol to transmit and receive data from server.
3. Record and decord mp3 audio between server and esp32's mic.

Can esp32 support to run these functions within the same project? We're developed with platformio+arduino framework, but if it's enough for chip resource in theory, we'll change to esp-idf.

Thanks!

[sakuranda]

Here's our

Code: Select all

(https://github.com/Sakuranda/esp32_test).

And our log:
```
Writing at 0x001fca6a... (98 %)
Writing at 0x00201f7e... (100 %)
Wrote 2062720 bytes (1277654 compressed) at 0x00010000 in 32.6 seconds (effective 505.8 kbit/s)...
Hash of data verified.

Leaving...
Hard resetting via RTS pin...
--- Terminal on COM17 | 115200 8-N-1
--- Available filters and text transformations: colorize, debug, default, direct, esp32_exception_decoder, hexlify, log2file, nocontrol, printable, send_on_enter, time
--- More details at https://bit.ly/pio-monitor-filters
--- Quit: Ctrl+C | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H
ets Jun  8 2016 00:22:57

rst:0x1 (POWERON_RESET),boot:0x33 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:1184
load:0x40078000,len:13232
load:0x40080400,len:3028
entry 0x400805e4
PSRAM initialized successfully!
Total PSRAM: 4192107 bytes
Free PSRAM: 4191863 bytes
Free heap: 147452 bytes
[I] A2DPStream.h : 134 - Connecting to ES32_BT_DEV666
[D] Allocator.h : 68 - Allocated 15361
a2dp_buffer.resize
Free PSRAM after Wi-Fi init: 4176483 bytes
Free heap after Wi-Fi init: 147452 bytes
[I] A2DPStream.h : 149 - Starting a2dp_source...
source()
Free PSRAM after Wi-Fi init: 4176483 bytes
Free heap after Wi-Fi init: 146904 bytes
start_raw
Free PSRAM after Wi-Fi init: 4172099 bytes
Free heap after Wi-Fi init: 60356 bytes
[D] A2DPStream.h : 173 - waiting for connection
[D] A2DPStream.h : 173 - waiting for connection
[D] A2DPStream.h : 308 - static void audio_tools::A2DPStream::a2dp_state_callback(esp_a2d_connection_state_t, void*)
[W] A2DPStream.h : 313 - ==> state: Connecting
[D] A2DPStream.h : 173 - waiting for connection
[D] A2DPStream.h : 308 - static void audio_tools::A2DPStream::a2dp_state_callback(esp_a2d_connection_state_t, void*)
[W] A2DPStream.h : 313 - ==> state: Connected
[I] A2DPStream.h : 176 - a2dp_source is connected...
cfg end
Free PSRAM after Wi-Fi init: 4172099 bytes
Free heap after Wi-Fi init: 48296 bytes
[D] AudioIO.h : 30 - void audio_tools::TransformationReader<T>::begin(T*, Stream*) [with T = audio_tools::ReformatBaseStream]
[D] AudioEncoded.h : 140 - virtual bool audio_tools::EncodedAudioOutput::begin()
[D] AudioEncoded.h : 142 - virtual bool audio_tools::EncodedAudioOutput::begin()
[D] AudioCodecsBase.h : 27 - virtual void audio_tools::AudioDecoder::setAudioInfo(audio_tools::AudioInfo)
[D] CodecMP3Helix.h : 82 - virtual bool audio_tools::MP3DecoderHelix::begin()
[D] MetaDataFilter.h : 30 - void audio_tools::MetaDataFilter<Decoder>::begin() [with Decoder = libhelix::MP3DecoderHelix]
dec end
Free PSRAM after Wi-Fi init: 4140955 bytes
Free heap after Wi-Fi init: 48296 bytes
E (9152) wifi:Expected to init 4 rx buffer, actual is 2
E (9154) wifi_init: Failed to deinit Wi-Fi driver (0x3001)
E (9155) wifi_init: Failed to deinit Wi-Fi (0x3001)
[  4334][E][WiFiGeneric.cpp:685] wifiLowLevelInit(): esp_wifi_init 257
[  4352][E][WiFiSTA.cpp:227] begin(): STA enable failed!
Free PSRAM after Wi-Fi init: 4140955 bytes
Free heap after Wi-Fi init: 28216 bytes
Connecting to WiFi...
Connecting to WiFi...
Connecting to WiFi...
Connecting to WiFi...
Connecting to WiFi...
```

Thanks for your help!