Elektronik-Spass with Monsieur Fisgus and Mister Paul

Setup

1. install "esp32 by Espressif Systems" (v2.0.17) via Tools > Board: "…" > Board Manager… ( note, that this is NOT the most recent version )
2. select board at Tools > Board > esp32 > ESP32 Dev Module
3. select serial port at Tools > Port: "…" e.g cu.usbserial-0001
4. run example File > Examples > 01.Basics > Blink ( define LED_BUILTIN as pin 22 with #define LED_BUILTIN 22 )
5. install libraries ( make sure to install the exact same version as specified ):
   1. manually by downloading the ZIP from:
      • Arduino Audio Tools (v0.9.8)
      • Arduino Audio Driver (v0.1.0)
   2. via Arduino IDE i.e Sketch > Include Library > Manage Libraries…
      • Mozzi (v2.0.1)
      • Bounce2 (v2.71)
      • FastLED(v3.7.6)
6. run example File > Examples > audio-tools > examples-dsp > examples-mozzi > control_gain
7. see ESP32-Audio-kit Documentation for more details

ESP-32 Audio Kit 2.2 with ESP32-A1S MCU incl. ES8388 Audio Codec

ESP-32 Audio Kit pinmap

IO	USEABLE?	ADC	SPI/ I2C / UART	AUDIOKIT	AUDIOKIT ALT.
0	low for flash mode	maybe			IO 0
1	FTDI TX		UART0 TX	TX
2	low or float for flash mode				SD DATA 0
3	FTDI RX		UART0 RX	RX
4			VSPI CS		SD DATA 1
5	outputs PWM at boot			KEY 6	IO 5
12	boot fail when high	y	HSPI DI	MTDI	SD DATA 2
13			HSPI DO	KEY 2	SD DATA 3
14		y	HSPI CLK	MTMS	SD CLK
15			HSPI CS	MTDO	SD CMD
16			UART2 RX	n.a.
17			UART2 TX	n.a.
18			VSPI CLK	KEY 5	IO 18
19			VSPI DO	KEY 3	IO 19 / LED D5
20				n.a.
21			I2C SDA		IO 21
22			I2C SCL		IO 22 /LED D4
23			VSPI DI	KEY 4	IO 23
24				n.a.
25				I2S WS
26				I2S DO
27				I2S BCK
32
33
34	input only				SD DETECT
35	input only			I2S DI
36	input only			KEY 1	KEY AD
39	input only			HP DETECT

basic operations input output

• LED
• buttons / switches
• potentiometer / fader
• neopixel / adressable RGB LED
• servo motor
• serial sensor I2C / SPI