Internet radio and audio file player on ESP32-S3

New software version EVO3 MOD KOL .There is still a lot of room for improvement but you have a look for yourself . Version on Panel ILI9488 connections as before. Enjoy testing.

The visual side looks like this

NEW TOOLING EVO3 MOD COLOUR







EVO_Radio_Arduino_ILI9488_V7_BT_ICON_ORIGINAL_SHAPE_FIX4 This option is already there

WORKS ON PANELS ILI9488 AND ST7796 you have to change the rotation in the code because the image is rotated 180 degrees

And what kind of graphics? In terms of libraries?

>>21900341
LovyanGFX 1.2.21
Audio Version 3.4.6

LovyanGFX 1.2 audio version 3.4

>>21900347 Hi, can you please upload the file, .bin, thanks

>>21900357
I added the bin in the post test don't forget the connections

Connection to ESP32 S3 N16 R8 // -------------- OLED Display - pin definition -------------- #define SPI_MOSI_OLED 39 // MOSI pin (Master Out Slave In) for SPI OLED interface #define SPI_MISO_OLED -1 // no MISO for TFT display #define SPI_SCK_OLED 38 // SCK (Serial Clock) pin for SPI OLED interface #define CS_OLED -1 // CS residual screen to GND - dice on ILI9488 #define DC_OLED 40 // DC/RS screen on ILI9488 #define RESET_OLED 41 // RST screen on ILI9488 ST7796

Hello Robgold, thanks for the new soft version. I have a question, did you add, besides the flag, any pin dedicated for the STANDBY/MUTE type amplifier ?

Ejcon, a question, are you planning to control some LCD backlight pin for Power Off ? Well and the question of adjusting the edibility with the same pin you could PWM control the MOSFET for the LCD backlight.
Do you have Bluetooth RX/TX in this version ?
The idea is to implement audio transmission on the second ESP32 as you had in the previous mod on the OLED ?

Greetings....

>>21900366 well it looks nice, but .bin is for ILI9488 and I have st7796 and have a mirror image

In the web setting you have a rotation setting of 180 degrees, select it and update it, it works fine


Added after 7 [minutes]:

>>21900476
Yes in the softy is the BT control as before all is transferred from the Evo3 mod only on a new panel and here are the changes because everything is not yet completed but the work is in progress just like the previous softy should be the same functions.

The new firmware will include the following connections:
TFT SCK -> ESP32 GPIO38
TFT MOSI -> ESP32 GPIO39
TFT CS -> ESP32 GPIO42
TFT DC -> ESP32 GPIO40
TFT RST -> ESP32 GPIO41
TFT GND -> ESP32 GND
TFT VCC -> ESP32 3V3 or 5V according to the module
TFT BL ->ESP32 GOPIO8

>>21900541 yes, I know this rotation works up/down but I also have left/right

>>21900551
A correction must be made in codzie .

>>21900476 The backlight and amplifier control option is already in code 3.20.14.


Clock synchronisation has also been improved in 3.20.14. Now in sleep mode when we have the clock displayed it should show the time correctly. ESP wakes up every 3h and does a re-sync of the clock. I forgot to add this to the list of changes and it is one of the most important things that has also changed.

>>21900299 @ejcon In my opinion all these dynamic screens with bytes are an unnecessary expense, the fluidity is not there at all, and to stare at it- it just tires the eyes, better to harness the resources of ESP32 for smooth audio and network connection. If I were to do any analysis it would only be a screen on parallel communication, here's a comparison: https://www.youtube.com/watch?v=ZtCMIAmLSh8

Efi222 made a patent on a second ESP32 with an analogue input.

https://www.elektroda.pl/rtvforum/topic4173225.html

Such an analyser works quite cleverly.

Greetings....

>>21901191
Maybe something like this .
Cod for the spectrum converted from the code of colleague efi222.





Connections:
2. TWO TFT PANELS ST7789 1.9" 170x320
-------------------------------------
Both displays share the same SPI bus. Only the CS pin differs.

GPIO4 -> CS TFT left
GPIO5 -> CS TFT right
GPIO15 -> RX UART from master ESP32-S3
GPIO16 -> TX UART to main ESP32-S3

GPIO17 -> RST of both TFTs
GPIO18 -> SCK of both TFTs
GPIO22 -> DC of both TFTs
GPIO23 -> MOSI both TFTs

GPIO32 -> I2S BCK
GPIO33 -> I2S LRC
GPIO34 -> I2S DIN

3V3 -> TFT and module power supply
GND -> common groundTFT LEFT:

The mini spectrum code is a reworking of my earlier code. It could have been mentioned...

>>21901400
Sorry but I was writing quite late.
Already adding info.

ejcon wrote:

Sorry but I was writing quite late.

Bottom line.
I've been writing for a long time that this S3 from the radio is sweating from an excess of bits and bobs. A separate ESP for effects is a good direction. Audio over i2c in the spectrum is great as much as it is limited to one device.

>>21901130 I agree 100%. Byers, blinkers ...great. However, this is INTERNET RADIO and the most important thing is that this streamer is able to correctly play back also such HiRes stations with FLAC codec. In 99% after starting the station no one looks at the display. we "fire up" our favourite station and off we go.
This is why I am recompiling our own lwip libraries for the project, so that the radio plays correctly even up to 2500kbps/FLAC.

@efi222 The approach with a separate analyser is spot on.

What do you think about making a circuit as follows
1 main processor ESP32 S3 N16R8 radio Evo3
2.2 ESP32 S3 N16R8 processor Graphic equalizer with spectrum analyzer controlled from the main processor via uart
3 BT AUDIO ESP32 WROM transmitter controlled from the main processor via uart2
A PCM9211 could be added before the equalizer to feed other digital signals.

1. Main audio structure
ESP32-S3 EVO3 RADIO
radio, Wi-Fi, web, TFT/OLED, SD, remote control, BT control
|
| I2S raw from the radio
| DATA / BCK / LRC / optionally MCLK
v
PCM9211
source selection:
RADIO I2S / BT I2S / SPDIF / AUX / future inputs
|
| I2S selected source
| DATA / BCK / LRC
v
ESP32-S3 N16R8 DSP
equalizer 20 Hz ... 20 kHz
preamp, limiter, spectrum analyser, VU
|
| DATA after equalization
| BCK and LRC common with PCM9211
v
PCM5102A DAC
|
v
audio amplifier
1. ESP32-S3 EVO3 RADIO → PCM9211 as AUXIN0
This is the correct connection for internet radio.
ESP32-S3 EVO3 PCM9211 pin Name PCM9211 pin Function in project
GPIO13 28 RXIN7 / ADIN0 I2S DATA from radio
GPIO14 29 RXIN6 / ALRCKI0 I2S LRC / LRCK
GPIO12 30 RXIN5 / ABCKI0 I2S BCK
GPIO2 optional 31 RXIN4 / ASCKI0 I2S MCLK / SCK optional
GND common ground
So on the PCB describe it like this:
PCM9211 AUXIN0 / RADIO
pin 28 RXIN7/ADIN0 <- RADIO DATA
pin 29 RXIN6/ALRCKI0 <- RADIO LRCK
pin 30 RXIN5/ABCKI0 <- RADIO BCK
pin 31 RXIN4/ASCKI0 <- RADIO MCLK optional
Here an earlier description was good.
________________________________________
2. Bluetooth I2S → PCM9211 as AUXIN1
Here the names need to be corrected. There are no pins described as ADIN1 on the chassis. There are pins MPIO_C0...MPIO_C3. When group C is configured as AUXIN1 they get the functions ASCKI1 / ABCKI1 / ALRCKI1 / ADIN1.
BT PCM9211 module pin Physical name of pin Function after configuration
BT MCLK if present 7 MPIO_C0 ASCKI1
BT BCK 8 MPIO_C1 ABCKI1
BT LRC 9 MPIO_C2 ALRCKI1
BT DATA OUT 10 MPIO_C3 ADIN1
GND GND ground
On the PCB schematic, sign it like this:
PCM9211 AUXIN1 / BT
pin 7 MPIO_C0 / AUXIN1_SCK
pin 8 MPIO_C1 / AUXIN1_BCK
pin 9 MPIO_C2 / AUXIN1_LRCK
pin 10 MPIO_C3 / AUXIN1_DATA
And in the PCM9211 software you have to set group C as AUXIN1. According to the datasheet, the MPIO_C group with MPCSEL = 000 works as AUXIN1, i.e. ASCKI1 / ABCKI1 / ALRCKI1 / ADIN1. This is also the default setting after a reset.
________________________________________
3. Additional I2S input → PCM9211 as AUXIN2
Name correction here too. There are MPIO_B0...MPIO_B3 pins on the chassis.
External I2S source PCM9211 pin Physical pin name Function after configuration
MCLK if present 11 MPIO_B0 ASCKI2
BCK 12 MPIO_B1 ABCKI2
LRC 13 MPIO_B2 ALRCKI2
DATA 14 MPIO_B3 ADIN2
GND GND GND ground
On the PCB schematic, sign:
PCM9211 AUXIN2 / EXT_I2S
pin 11 MPIO_B0 / AUXIN2_SCK
pin 12 MPIO_B1 / AUXIN2_BCK
pin 13 MPIO_B2 / AUXIN2_LRCK
pin 14 MPIO_B3 / AUXIN2_DATA
The MPIO_B group with MPBSEL = 000 works as AUXIN2, i.e. ASCKI2 / ABCKI2 / ALRCKI2 / ADIN2. This is also the default setting.
________________________________________
4. PCM9211 → ESP32-S3 DSP
This is the main output of the PCM9211. Here the pins are exactly as shown in your picture.
PCM9211 pin Name PCM9211 ESP32-S3 DSP Function
17 DOUT GPIO11 DATA IN to DSP
18 LRCK GPIO10 LRC / LRCK
19 BCK GPIO9 BCK
20 SCKO test pad / MCLK / SCK optionally
GND GND GND ground
Description on PCB:
PCM9211 MAIN OUT
pin 17 DOUT -> DSP GPIO11 DATA_IN
pin 18 LRCK -> DSP GPIO10 LRC
pin 19 BCK -> DSP GPIO9 BCK
pin 20 SCKO -> TP_SCKO / optionally DSP MCLK
The PCM9211 has routing of DIR, ADC, AUXIN0, AUXIN1, AUXIN2 sources to the main output. Selection of the main output is via register 6Bh, and muting and Hi-Z is via registers 6Ah and 6Dh.
________________________________________
5. PCM9211 I2C control from EVO3
That was almost right, just adding exactly according to the pinout.
ESP32-S3 EVO3 PCM9211 pin Pin name Function
GPIO4 24 MDI/SDA I2C SDA
GPIO5 25 MC/SCL I2C SCL
GPIO6 34 RST reset PCM9211, active LOW
GPIO7 optional 1 ERROR/INT0 error / interrupt
GPIO7 optional 15 MPO0 e.g. LOCK after configuration
3V3 or GND via jumper 23 MDO/ADR0 I2C address ADR0
3V3 or GND via jumper 26 MS/ADR1 I2C ADR1 address
GND 27 MODE I2C selector
For I2C the MODE pin must be connected to DGND. If you give MODE to VDD, the chip will go into SPI. The PCM9211 attempts this state on startup or reset, so don't treat this as just a GPIO.
The I2C address is:
10000 ADR1 ADR0
That is:
ADR1 ADR0 address 7-bit
0 0 0x40
0 1 0x41
1 0 0x42
1 1 0x43
Therefore, it is best to give solder jumpers for ADR0 and ADR1 on the PCB. The PCM9211 supports I2C as a slave and the address has first bits 10000 plus ADR1 and ADR0.
________________________________________
6. SPDIF / optical inputs
This also needs to be described according to the real names.
Coax SPDIF
Input PCM9211 pin Pin name
COAX 1 37 RXIN0
COAX 2 35 RXIN1
power supply RX coax 36 VDDRX
rX coax ground 38 GNDRX
RXIN0 and RXIN1 have a built-in coaxial input amplifier and VDDRX supplies this part of the receiver.
Optical / TOSLINK SPDIF
Optical input PCM9211 pin Pin name
Optical 1 DATA 33 RXIN2
Optical 2 DATA 32 RXIN3
Optical 3 optional 31 RXIN4 / ASCKI0 if not using AUXIN0 SCK
Optical 4 optional 30 RXIN5 / ABCKI0 if not using AUXIN0
Optical 5 optional 29 RXIN6 / ALRCKI0 if not using AUXIN0
Optical 6 optional 28 RXIN7 / ADIN0 if you do not use AUXIN0
In our case RXIN4...RXIN7 are occupied by AUXIN0 RADIO, so for TOSLINK leave RXIN2 and RXIN3 realistically.
________________________________________
7. Corrected netlist of the main audio path
NET_RADIO_DATA:
ESP32_EVO3 GPIO13
PCM9211 pin 28 RXIN7/ADIN0

NET_RADIO_LRCK:
ESP32_EVO3 GPIO14
PCM9211 pin 29 RXIN6/ALRCKI0

NET_RADIO_BCK:
ESP32_EVO3 GPIO12
PCM9211 pin 30 RXIN5/ABCKI0

NET_RADIO_MCLK_OPTION:
ESP32_EVO3 GPIO2
PCM9211 pin 31 RXIN4/ASCKI0
NET_BT_I2S_MCLK_OPTION:
BT_MODULE MCLK
PCM9211 pin 7 MPIO_C0 / AUXIN1_SCK

NET_BT_I2S_BCK:
BT_MODULE BCK
PCM9211 pin 8 MPIO_C1 / AUXIN1_BCK

NET_BT_I2S_LRCK:
BT_MODULE LRCK
PCM9211 pin 9 MPIO_C2 / AUXIN1_LRCK

NET_BT_I2S_DATA:
BT_MODULE DATA_OUT
PCM9211 pin 10 MPIO_C3 / AUXIN1_DATA
NET_EXT_I2S_MCLK_OPTION:
EXT_I2S MCLK
PCM9211 pin 11 MPIO_B0 / AUXIN2_SCK

NET_EXT_I2S_BCK:
EXT_I2S BCK
PCM9211 pin 12 MPIO_B1 / AUXIN2_BCK

NET_EXT_I2S_LRCK:
EXT_I2S LRCK
PCM9211 pin 13 MPIO_B2 / AUXIN2_LRCK

NET_EXT_I2S_DATA:
EXT_I2S DATA
PCM9211 pin 14 MPIO_B3 / AUXIN2_DATA
NET_PCM9211_MAIN_DOUT:
PCM9211 pin 17 DOUT
DSP_ESP32 GPIO11

NET_PCM9211_MAIN_LRCK:
PCM9211 pin 18 LRCK
DSP_ESP32 GPIO10
PCM5102A LRC via jumper 0R

NET_PCM9211_MAIN_BCK:
PCM9211 pin 19 BCK
DSP_ESP32 GPIO9
PCM5102A BCK via jumper 0R

NET_PCM9211_MAIN_SCKO_OPTION:
PCM9211 pin 20 SCKO
test pad TP_SCKO
NET_DSP_DATA_OUT_EQ:
DSP_ESP32 GPIO12
PCM5102A DIN
________________________________________
8. Note to the connection of the DSP with the PCM5102A
Here I would leave the 0 Ω jumpers on the PCB, because we have two possible clock variants.
Variant A, which we described:
PCM9211 BCK -> DSP GPIO9 and PCM5102A BCK
PCM9211 LRCK -> DSP GPIO10 and PCM5102A LRC
DSP GPIO12 -> PCM5102A DIN
This variant only works if the DSP correctly transmits DATA_OUT synchronised to the external BCK/LRCK.
Variant B, safer to run:
PCM9211 DOUT/BCK/LRCK -> DSP input I2S
DSP generates its own BCK/LRCK/DATA -> PCM5102A
For the first prototype PCB I recommend giving jumpers:
JP_BCK_DAC:
position 1: BCK with PCM9211
position 2: BCK with DSP_TX

JP_LRCK_DAC:
position 1: LRCK with PCM9211
position 2: LRCK with DSP_TX
This way you won't get blocked if the ESP32-S3 DSP requires a separate I2S TX with its own clock.
________________________________________
9. Corrected PCM9211 pin description for the schematic
This is how I would describe the symbol in KiCad/Eagle:
1 ERROR/INT0
2 NPCM/INT1
3 MPIO_A0
4 MPIO_A1
5 MPIO_A2
6 MPIO_A3

7 MPIO_C0 / AUXIN1_SCK
8 MPIO_C1 / AUXIN1_BCK
9 MPIO_C2 / AUXIN1_LRCK
10 MPIO_C3 / AUXIN1_DATA

11 MPIO_B0 / AUXIN2_SCK
12 MPIO_B1 / AUXIN2_BCK
13 MPIO_B2 / AUXIN2_LRCK
14 MPIO_B3 / AUXIN2_DATA

15 MPO0
16 MPO1
17 DOUT
18 LRCK
19 BCK
20 SCKO

21 DGND
22 DVDD
23 MDO/ADR0
24 MDI/SDA
25 MC/SCL
26 MS/ADR1
27 MODE

28 RXIN7/ADIN0
29 RXIN6/ALRCKI0
30 RXIN5/ABCKI0
31 RXIN4/ASCKI0
32 RXIN3
33 RXIN2
34 RST
35 RXIN1
36 VDDRX
37 RXIN0
38 GNDRX

39 XTI
40 XTO
41 AGND
42 VCC
43 FILT
44 VCOM
45 AGNDAD
46 VCCAD
47 VINL
48 VINR
This is consistent with your pinout from the picture and the TI table.
________________________________________
10. Most important corrections from the previous description
In the previous description it was confusing:
pin 10 MPIO_C3 / ADIN1
pin 8 MPIO_C1 / ABCKI1
pin 9 MPIO_C2 / ALRCKI1
Now we write it correctly:
pin 10 MPIO_C3, post-configuration function: AUXIN1_DATA / ADIN1
pin 8 MPIO_C1, function after configuration: AUXIN1_BCK / ABCKI1
pin 9 MPIO_C2, function after configuration: AUXIN1_LRCK / ALRCKI1
That is, for the PCB use the physical names MPIO_Cx and MPIO_Bx, and add the function after the slash as a logical description.
In the end for your project it stays like this:
RADIO from EVO3 -> AUXIN0, pins 28/29/30/31
BT I2S -> AUXIN1, pins 7/8/9/10
additional I2S -> AUXIN2, pins 11/12/13/14
SPDIF coax -> RXIN0/RXIN1, pins 37/35
SPDIF optical -> RXIN2/RXIN3, pins 33/32
output to DSP -> DOUT/LRCK/BCK, pins 17/18/19
i2C control -> SDA/SCL, pins 24/25
reset -> RST, pin 34
i2C mode -> MODE to GND, pin 27
You can already transfer this version to the PCB schematic.

Both TFTs together:
GPIO18 -> SCK / CLK
GPIO23 -> MOSI / SDA
GPIO22 -> DC / A0
GPIO17 -> RST / RES
3V3 -> VCC
GND -> GND

TFT left:
GPIO4 -> CS

TFT right:
GPIO5 -> CS

>>21901465
Point 2 and 3
If the uart is unidirectional one is sufficient Preferably UART2.
In the receiving ESPs the RXs are bundled together.
I have something similar done in another device with two ESP32s. I control them TX from the Esp8266 from the GUI.
Only in the command headers you have to add to which ESP32 the command is flying to. And they receive all the commands and filter if it is to it.

Spectrum software fix.
Cod for the spectrum reworked from the code of colleague efi222.

THANKS FOR A SHOOT OF GOOD WORK efi222
Such a little gadget about the demo every time you run .
A request not to remove this from the code .








Tested

ejcon wrote:

Such a little gadget about demn at every launch .
Request to not remove this from the code

No no... I really don't need to be on TFT at the start. It's enough that my nickname is in the main. You've done a great job too. I'll take a look tomorrow to see what you've come up with there

Ejcon would you upload some video of it jumping 😀

Greetings...

DJCheester wrote:

would you please upload some video of how it jumps

And sweep 64-16000Hz. I'd love to see how much "analysis" there is in this analyser.

>>21899630 Good morning

I compiled a new version yesterday, core 3.5.8, using audio library 3.4.6 (instead of 3.4.5q) and substituted lwIP libraries. I compiled under Arduino 2.3.8.
It works brilliantly, compared to the previous version it runs faster, and on my favourite stations, which by the way were probably the most cutting at startup: PR Two and Radio Chopin PR in aac320 and Cesky Rozhlas D major (flac) stopped cutting.

I don't know what caused this improvement, whether the new core (the radio works more nimbly in general) or the new I2S Audio library, or perhaps the "robgold" libraries

The earlier compilation (3.20.04) on the above stations had problems, especially right after loading the station, I was combining with different versions of the lwIP libraries provided by my colleague Robgold and on these stations (especially Cesky Rozhlas) it was cutting heavily. Surprisingly, other stations, even with higher bitrates (e.g. Linn) were running smoothly. I considered that the problem might be on the side of the broadcaster.

To my colleague Robgold:
I also think that additional fabs like spectrum analysers or pseudo-analogue VU-meters are not necessary, it is better to focus on basic functionality, so as to squeeze the maximum performance out of a chip that was supposed to be used in fridges and other IoT....

Now I am even thinking about simplifying this project (1 bank, only a big station name on the display, maybe a clock, etc.) in terms of a radio for an elderly person, so that its operation is as similar as possible to an analogue radio (you know, except for WiFi configuration).

>>21902025


To improve stl 6.

Ejcon did you compile this as recommended on core 1.04 with the changes as efi222 wrote because somehow these posts go dimly.

In effi's or my compilation it is much better

Take a look

Audio in analogue

Greetings....

DJCheester wrote:

you compiled this as recommended on core 1.04

This low core was because of the high ADC sampling. In higher versions this is messed up. But there is no ADC in the ejcona software.

@ejcon and falling bars do you have every 3 pixels?

That's what you explained to me, but you have to admit that it works without delay. I wonder if this is because of I2S?