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T

Claude afbc0e5e23 Remove arduino-esp32 dependency, modernise WiFi and SPI compat

- Replace Arduino WiFi.h in Networking.cpp with native esp_wifi/esp_netif;
  uses event-driven connect with FreeRTOS EventGroup and 30 s timeout
- Remove initArduino() / Arduino.h from main.cpp
- Remove deprecated arduino-esp32 submodule (was uninitialized and marked
  deprecated since it was first added in Dec 2021)
- rc522.h: guard VSPI_HOST → SPI3_HOST for ESP-IDF 5.x compatibility
- WebInterface.cpp: drop redundant esp_wifi.h (esp_netif.h is sufficient)
- CMakeLists.txt: add esp_wifi + nvs_flash to REQUIRES

https://claude.ai/code/session_01MhAnh68DPNnTjcKqjNYDmk

2026-06-12 20:34:52 +00:00

.vscode

Adds rfid example code.

2021-12-26 14:05:02 +01:00

device

Remove arduino-esp32 dependency, modernise WiFi and SPI compat

2026-06-12 20:34:52 +00:00

docs

Adds pictures.

2021-12-30 23:43:44 +01:00

www

Implement full NFC-URL streaming architecture

2026-06-12 19:44:54 +00:00

.gitattributes

Adds esp32 docs to the repo as the espressif server is super-slow

2021-12-26 14:05:02 +01:00

.gitignore

Adds vscode-workspace files to gitignore.

2021-12-26 14:05:02 +01:00

.gitmodules

Remove arduino-esp32 dependency, modernise WiFi and SPI compat

2026-06-12 20:34:52 +00:00

Makefile

Enable the refresh button for the rfidId.

2021-12-26 14:05:02 +01:00

README.md

Adds pictures.

2021-12-30 23:43:44 +01:00

README.md

Kidsbox

This is a battery-powered rfid-tag-controlled audio player meant to be used by kids. You can bundle audio-files to rfid tags and let your kids choose the music or audiobook of their favour by placing the corresponding tag atop of the box.

Front	Side

Todo

Volume buttons
Playlists
Pausing
... I have a lot of ideas :)

Setup

Install ESP-ADF and ESP-IDF according to the install guide.
Clone this repository and cd into the repository directory.
git submodule init --recursive
cd device
Make sure that you have idf.py available in your environment. This is described in the install guide.
Execute idf.py build to compile, idf.py build flash monitor to flash it to your board.

Hardware

Parts

TBD

Part	Links
ESP32-LyraT 4.3	Mouser

Hardware Setup

The peripherals must be configured for:

SD Card
RFID-module
Vol+/- buttons

The ESP32-LyraT board has only a few exposed GPIO pins. To save pins, the SD-Card reader runs only in 1-Wire mode. I have actually no idea what the limitations and differences are, but I didn't encounter any problems yet.

DIP-Switch

The switches must be exatly in the positions outlined in the table.

Number	Setting	Purpose
1	OFF	Disconnects GPIO 12 from SD-D2
2	OFF	Disconnects GPIO 13 from SD-D3
3	OFF	Connects GPIO 15 to SD CMD
4	ON	Connects GPIO 13 to the JTAG header
5	ON	Connects GPIO 12 to the JTAG header
6	OFF	Connects GPIO 13 to SD CLK
7	OFF	Disconnects GPIO 12 from the AUX-in-detection
8	OFF	-

RFID

The MISO/MOSI pins are not inverted on host/chip

Connection Table:

RC522 Pin	ESP32 Lyrat v4.3 Pin	GPIO Number
3.3v	3.3v	-
RST	3.3v	-
GND	GND	-
SDA	I2C SDA	18
SCK	I2C SCL	23
MOSI	JTAG MTCK	13
MISO	JTAG MTDI	12