Jup, the config is ESPhome and i´m happy to share.
I build on info shared by others 
While experimenting i got to reusing specific part of the YAML quite often, so i discovered the advantage of !including packages and substitutions.
The packages are placed in the common subfolder under esphome.
Thus it was easy to switch / test a config for new sendpin development or different ESP board. This config is for a XIAO ESP32-S3.
I did not clean the code of all comments as i think it might help (at least it does for me).
Answering the question before:
KALLUPS is not too loud if compared with bigger speakers but for the size and price its quite ok. Its 3Watts so i wire the DAC with 5V instead of 3,3V.
Main YAML Code:
## ------------ Template v2 -------
## ------------ 08.03.2026 --------
# ---------------- Start --------------
substitutions:
name: "audio-kallsup-01-s3x7"
friendly_name: Audio-KALLSUP-01-S3X7
api_key: !secret api_key
ota_key: !secret ota_key
# ---------------- GPIOs ---------------
# pin_i2c_sda: GPIO08 #sda/mtck/
# pin_i2c_scl: GPIO09 #scl/mtdo
# pin_spi_clk: GPIO12 #sclk/clk/sck/clock
# pin_spi_cs: GPIO10 #cs/chip select
# pin_spi_mosi: GPIO11 #mosi/sdo/data out
# pin_spi_miso: GPIO13 #miso/sdi/data in
# pin_spi_rst: GPIOxx #rst/res/reset
# pin_spi_dc: GPIO21
# pin_spi_bl: GPIO46
pin_i2s_lrclk: GPIO07 #leftrightclock/lrck fs/framesync /ws/word select
pin_i2s_dout: GPIO08 #dout/sdout/ sd/sdata/dacdat/data
pin_i2s_bclk: GPIO09 #bck/bcclk/bit clock sck/ serial clock (optional)
# pin_i2s_mclk: GPIOxx #mclck/master clock
# pin_i2s_din: GPIO02 #din/sdin/data in /sd/serial data/ adcdat
# pin_uart_rx: GPIO18
# pin_uart_tx: GPIO17
led_01: GPIO21 #onboard LED
task_stack_in_psram: "true" # important to disable this for non-S3 model. Slower, use if running out of memory with many components.
# ---------------- Packages --------------
packages:
- !include common/sendspin_06.yaml
- !include common/wifi_02_s3.yaml
# ---------------- Basics --------------
esphome:
name: ${name}
friendly_name: ${friendly_name}
name_add_mac_suffix: false
esp32:
board: seeed_xiao_esp32s3
# flash_size: 8MB # 16MB for N16R8. Put yours.
framework:
type: esp-idf
psram:
mode: octal
speed: 80MHz
ignore_not_found: false
# ------------------- Connection ---------------
# Enable Home Assistant API
api:
encryption:
key: ${api_key}
reboot_timeout: 0s # to avoid rebooting without HA
# Allow Over-The-Air updates
ota:
- platform: esphome
password: ${ota_key}
#wifi:
# >>>>> see external wifi.YAML
http_request:
network:
enable_ipv6: true
mdns:
disabled: false
# -------------- Web Interface -------------
web_server:
port: 80
version: 3
debug:
update_interval: 10s
# Enable logging
logger:
# level: none
# level: error
# level: warn
# level: info
level: debug
# level: verbose
# level: very_verbose
logs:
wifi: info
api: info
mdns: info
# -------------- Interface Elements ------------
button:
- platform: restart
id: restart_button
name: "Restart ${friendly_name}"
entity_category: config
icon: "mdi:restart"
- platform: factory_reset
id: factory_reset_button
name: "Factory Reset"
entity_category: diagnostic
internal: true
disabled_by_default: true
# -------------- Platforms ------------------
#i2c:
# sda: ${pin_i2c_sda}
# scl: ${pin_i2c_scl}
# scan: true
# frequency: 200kHz #100kHz or 400kHz
# timeout: 1s
#spi:
# - id: spi_bus0
# clk_pin: ${pin_spi_clk}
# mosi_pin: ${pin_spi_mosi}
# miso_pin: GPIOxx
# interface: hardware
#uart:
# rx_pin: ${pin_uart_rx}
# baud_rate: 9600
# -------------- Bluetooth -----------------
# -------------- Audio -----------------
# >>>>> see external sendspin.YAML
# --------------- LED / LIGHT --------------
status_led:
pin:
number: ${led_01}
# --------------- Globals --------------
# Globals (since-boot only; not restored)
time:
- platform: homeassistant
id: time_homeassistant
- platform: sntp
id: time_sntp
timezone: Europe/Berlin
servers:
- 0.pool.ntp.org
- 1.pool.ntp.org
# ----------------Script --------------
# --------------- Sensors --------------
binary_sensor:
- platform: status
name: "Status"
# -------------buttons ---------------------
# Buttons for controling KALLSUP, still looking for good use for the BT button
- platform: gpio
pin:
number: 04
mode: INPUT_PULLDOWN
inverted: false # Assume button connects to GND
name: "Button Play"
on_press:
- media_player.toggle: external_media_player
- platform: gpio
pin:
number: 43
mode: INPUT_PULLDOWN
inverted: false # Assume button connects to GND
name: "Button BT"
on_press:
- media_player.mute: external_media_player
text_sensor:
- platform: debug
device:
name: "Device Info"
sensor:
# ---------------diagnostic sensors -------------
- platform: uptime
type: seconds
name: Uptime Sensor
- platform: internal_temperature
name: "Internal Temperature"
- platform: debug
# free:
# name: "Heap Free"
# block:
# name: "Heap Max Block"
# loop_time:
# name: "Loop Time"
psram:
name: "Free PSRAM"
# cpu_frequency:
# name: "CPU Frequency"
# -------------real sensors ---------------------
# ------------ Displays ---------------------
Config for sound. Only media pipeline as i dont need announcements
sendspin_06.YAML
# -------------- Sendspin Player, no announcement ------------
# ---- 223.03.2026
# ---- based on
# ---- https://github.com/esphome/esphome/pull/14933
# ---- component changes 26.03
esphome:
min_version: 2026.3.0
on_boot:
priority: 220.0
then:
media_player.play_media:
id: external_media_player
media_url: audio-file://startup_sync_sound
network:
enable_high_performance: true
# The optimization level is PSRAM-aware:
# - with PSRAM guaranteed: (Psram configured with ignore_not_found: false): Aggressive settings with 512KB TCP windows and 512 WiFi RX buffers
# - without PSRAM guaranteed: Conservative optimized settings with 65KB TCP windows and 64 WiFi buffers
# If you experience out-of-memory issues, you can disable these optimizations by setting enable_high_performance: false
esp32:
framework:
type: esp-idf
version: recommended
sdkconfig_options:
CONFIG_ESP32S3_DATA_CACHE_64KB: "y"
CONFIG_ESP32S3_DATA_CACHE_LINE_64B: "y"
CONFIG_ESP32S3_INSTRUCTION_CACHE_32KB: "y"
# Moves instructions and read only data from flash into PSRAM on boot.
# Both enabled allows instructions to execute while a flash operation is in progress without needing to be placed in IRAM.
# Considerably speeds up mWW at the cost of using more PSRAM.
CONFIG_SPIRAM_RODATA: "y"
CONFIG_SPIRAM_FETCH_INSTRUCTIONS: "y"
CONFIG_BT_ALLOCATION_FROM_SPIRAM_FIRST: "y"
CONFIG_BT_BLE_DYNAMIC_ENV_MEMORY: "y"
CONFIG_MBEDTLS_EXTERNAL_MEM_ALLOC: "y"
CONFIG_MBEDTLS_SSL_PROTO_TLS1_3: "y" # TLS1.3 support isn't enabled by default in IDF 5.1.5
# -------------- External Components -----------------
external_components:
- source: github://pr#14933
components: [const, generic_image, media_source, sendspin]
refresh: 1h
- source:
type: git
url: https://github.com/esphome/esphome
ref: ff8ce89556748509d7ee8724e12d9d43d3c8c1e8
refresh: 1h
components: [http_request]
# -------------- Audio -----------------
i2s_audio:
- id: i2saudio_output
i2s_lrclk_pin:
number: ${pin_i2s_lrclk} #lrclk - leftrightclock, WS wordselect, FS - framesync
allow_other_uses: false
i2s_bclk_pin:
number: ${pin_i2s_bclk} #BCLK - bit clock , SCK - serial clock
allow_other_uses: false
# ===== Speaker & Audio Pipeline =====
speaker:
# Hardware speaker output
- platform: i2s_audio
id: i2s_audio_speaker
sample_rate: 48000 # 44100 Change this if most of your audio sources are 48 KHz (rare).
i2s_mode: primary
i2s_dout_pin: ${pin_i2s_dout}
#mute_pin: XX
bits_per_sample: 32bit #16bit
i2s_audio_id: i2saudio_output
dac_type: external
channel: stereo
timeout: never # speaker_timeout: 250ms
buffer_duration: 250ms
# 100ms There is still room to reduce the buffer duration.
# Although at a quarter second, responsiveness is quite okay.
# ===== Sendspin Media Player =====
sendspin:
id: sendspin_hub
task_stack_in_psram: ${task_stack_in_psram}
# kalman_process_error: 0.01
http_request:
buffer_size_rx: 2048 # Reduces CPU load when streaming audio
media_source:
# Necessary for playing synchronized audio
- platform: sendspin
id: sendspin_source
buffer_size: 500000 #
- platform: http_request
id: http_source
buffer_size: 500000 #200000
- platform: audio_file
id: audio_source
audio_file:
- id: startup_sync_sound
file: startup_sound.flac
# file: https://github.com/mrtoy-me/esphome-tas5805m/raw/main/components/tas5805m/tas5805m_boot_louder.flac
media_player:
# Only necessary for controlling a Sendspin group. It does not play synchronized audio!
- platform: sendspin
id: sendspin_group_media_player
# Necessary for playing synchronized audio and controlling the Sendspin group
- platform: speaker_source
id: external_media_player
name: "${friendly_name} Player"
media_pipeline:
speaker: i2s_audio_speaker
sources:
- sendspin_source
- http_source
- audio_source
# -------------- Image -----------------
# Only necessary for displaying cover art on a display
#generic_image:
# - platform: sendspin
# id: sendspin_cover_art
# format: jpg
# type: rgb565
# resize: 200x200
# image_source: ALBUM
# -------------- Sensor -----------------
text_sensor:
- platform: sendspin
type: title
id: sendspin_title
name: "Stream - Title"
- platform: sendspin
type: artist
id: sendspin_artist
name: "Stream - Artist"
- platform: sendspin
type: album
id: sendspin_album
name: "Stream - Album"
- platform: sendspin
type: track
id: sendspin_number
name: "Stream - Track Number"
# - platform: sendspin
# type: year
# name: Year
# id: sendspin_year
# name: "Stream - Year"
sensor:
# - platform: sendspin
# type: kalman_error
# name: Sendspin Kalman error # Time sync filter uncertainty estimate
# entity_category: diagnostic
## disabled_by_default: true
# - platform: sendspin
# type: audible_syncs
# name: Sendspin Audible syncs # Major sync events that are audible
# entity_category: diagnostic
# disabled_by_default: true
- platform: sendspin
type: track_duration
id: sendspin_track_duration
The last YAML is for WiFi.
wifi_02_s3.yaml
esp32:
framework:
type: esp-idf
sdkconfig_options:
CONFIG_SOC_WIFI_HE_SUPPORT: y # ESP32
CONFIG_ESP_WIFI_11AX_SUPPORT: y # ESP32
# ------------------- Connection ---------------
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
domain: .fritz.box
enable_btm: true # 802.11v BSS Transition Management (only ESP32)
enable_rrm: true # 802.11k Radio Resource Management (only ESP32)
fast_connect: true
enable_on_boot: true
power_save_mode: NONE
on_disconnect:
then:
- lambda: |-
id(_wifi_disconnects_since_boot)++;
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "ESPhome-Fallback"
password: !secret wifi_password2
# In combination with the `ap` this allows the user
# to provision wifi credentials to the device via WiFi AP.
captive_portal:
# --------------- Globals --------------
# Globals (since-boot only; not restored)
globals:
- id: _wifi_disconnects_since_boot
type: int
restore_value: no
initial_value: '0'
# --------------- Sensors --------------
text_sensor:
- platform: wifi_info
ip_address:
name: "WiFi IP"
entity_category: diagnostic
# mac_address:
# name: "WiFi MAC"
# entity_category: diagnostic
# ssid:
# name: "WiFi SSID"
# entity_category: diagnostic
# bssid:
# name: "WiFi BSSID"
# entity_category: diagnostic
power_save_mode:
name: "WiFi Powersafe mode"
entity_category: diagnostic
sensor:
- platform: wifi_signal # Reports the WiFi signal strength/RSSI in dB
name: "WiFi Signal dB"
id: wifi_signal_db
update_interval: 60s
entity_category: "diagnostic"
- platform: copy # Reports the WiFi signal strength in %
source_id: wifi_signal_db
name: "WiFi Signal Percent"
filters:
- lambda: return min(max(2 * (x + 100.0), 0.0), 100.0);
unit_of_measurement: "Signal %"
entity_category: "diagnostic"
device_class: ""
- platform: template
name: "Wi‑F Disconnects (since boot)"
id: wifi_disconnects_since_boot_sensor
entity_category: diagnostic
accuracy_decimals: 0
update_interval: 30s
lambda: |-
return id(_wifi_disconnects_since_boot);
