ESPHome Arduino R4 Uno WIFI MAX31865

Hi there,

my current setup :
1x Arduino Uno R4 Wifi board
1x Max31865 RTD Converter
1x PT1000 sensor

connection:
Arduino to converter
Port 10 → CS
Port 11 → SDI
Port 12 → SDO
Port 13 → CLK

Port 5V → VIN
Port GND → GND

converter to sensor
RTD+ → red cable of the sensor
RTD- → white cable of the sensor

esphome config:

substitutions:
  name: esphome-web-61a4ac
  friendly_name: Temperaturüberwachung Heizung

esphome:
  name: ${name}
  friendly_name: ${friendly_name}
  min_version: 2024.6.0
  name_add_mac_suffix: false
  platformio_options:
    board_build.flash_mode: dio
  project:
    name: esphome.web
    version: dev

esp32:
  board: esp32-s3-devkitc-1
  framework:
    type: arduino

# Enable logging
logger:

# Enable Home Assistant API
api:

# Allow Over-The-Air updates
ota:
- platform: esphome

# Allow provisioning Wi-Fi via serial
improv_serial:

wifi:
  # Set up a wifi access point
  ap: {}

# In combination with the `ap` this allows the user
# to provision wifi credentials to the device via WiFi AP.
captive_portal:

dashboard_import:
  package_import_url: github://esphome/firmware/esphome-web/esp32s3.yaml@main
  import_full_config: true

# Sets up Bluetooth LE (Only on ESP32) to allow the user
# to provision wifi credentials to the device.
esp32_improv:
  authorizer: none

# To have a "next url" for improv serial
web_server:

# Example configuration entry
spi:
  miso_pin: 12
  mosi_pin: 11
  clk_pin: 13

sensor:
  - platform: max31865
    name: "Living Room Temperature"
    cs_pin: 10
    reference_resistance: 430 Ω
    rtd_nominal_resistance: 100 Ω

I soldered the 2/3 Wire and 2 Wire jumper on the converter

error:

6:47:12	[E]	[max31865:101]	
SPI bus read all 0 or all 1 (0x0000), check MAX31865 wiring & power.

hope someone can help
thx alot
sandro

AFAIK, it’s MISO to SDI, and MOSI to SDO, no crossing.

changed the pin 11 and 12…still the same…