Hi …
Had a journey … here what worked for me …
Hardware:
waveshare com/wiki/ESP32-S3-ETH
waveshare com/esp32-s3-eth.htm?sku=28771
cajoe kit
amazon de/dp/B0CH39N36H
J321 geiger tube
amazon de/dp/B0D1GVYJC6
Had a lot of problems getting the signal detection on vin right.
Gave up and now use the J1 jumper signal that normaly feeds the mini speaker … That gave me a clean signal in the esp32.
geiger.yaml
esphome:
name: geiger
friendly_name: Geigercounter
esp32:
board: esp32-s3-devkitc-1 # did not find a better match
framework:
type: esp-idf
# Enable logging
logger:
# Enable Home Assistant API
api:
homeassistant_services: True
homeassistant_states: True
ota:
- platform: esphome
ethernet:
type: W5500
cs_pin: GPIO14
interrupt_pin: GPIO10
reset_pin: GPIO9
clk_pin: GPIO13
miso_pin: GPIO12
mosi_pin: GPIO11
# Optional manual IP
manual_ip:
static_ip: 192.168.1.48
gateway: 192.168.1.1
subnet: 255.255.255.0
globals:
- id: pulse_history
type: int[60]
restore_value: no
initial_value: "{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}"
- id: pulse_index
type: int
restore_value: no
initial_value: "0"
- id: pulse_sum
type: int
restore_value: no
initial_value: "0"
switch:
- platform: restart
name: "geiger Restart"
sensor:
- platform: uptime
name: "geiger Uptime"
update_interval: 60s
- platform: pulse_counter
id: geiger_cps
internal: false
pin:
number: 21
inverted: True
mode:
input: True
pullup: False
pulldown: False
unit_of_measurement: 'CPS'
name: 'Ionizing Radiation Power CPS'
count_mode:
rising_edge: DISABLE
falling_edge: INCREMENT
accuracy_decimals: 0
update_interval: 1s
filters:
delta: 1
on_raw_value:
then:
- lambda: |-
x=round(x/60); // esphome calculating based on pulses per minute. round required to avoid problem when esphome calc value less than 60 pulses per minute (for example 59.7)
id(pulse_sum) -= id(pulse_history)[id(pulse_index)]; // remove old value from overall sum
id(pulse_history)[id(pulse_index)] = x; // 'x' is the raw pulse count
id(pulse_sum) += x; // add new value to overall sum
id(pulse_index)++; // change array index where next value will be stores
if (id(pulse_index) >= 60) id(pulse_index) = 0; // Reset at 60
on_value:
then:
component.update: geiger_cpm
- platform: template
id: geiger_cpm
unit_of_measurement: 'CPM'
name: 'Ionizing Radiation Power CPM'
accuracy_decimals: 0
update_interval: 1s
state_class: measurement
lambda: return id(pulse_sum);
filters:
delta: 1
- platform: copy
source_id: geiger_cpm
id: ionizing_radiaton_power
unit_of_measurement: 'µSv/h'
name: 'Ionizing Radiation Power'
state_class: measurement
icon: mdi:radioactive
accuracy_decimals: 5
filters:
- skip_initial: 15
- sliding_window_moving_average: # 15 measurements moving average (MA5) here
window_size: 15
send_every: 1
- multiply: 0.00332 # 0.0057 original value or 0.00332 for J305 by IoT-devices tube conversion factor of pulses into uSv/Hour
- platform: integration
name: "Total Ionizing Radiation Dose"
unit_of_measurement: "uSv"
sensor: ionizing_radiaton_power # link entity id to the pulse_counter values above
icon: "mdi:radioactive"
accuracy_decimals: 5
time_unit: min # integrate values every next minute
filters:
# obtained dose. Converting from uSv/hour into uSv/minute: [uSv/h / 60] OR [uSv/h * 0.0166666667].
# if my_dose_meter in CPM, then [0.0057 / 60 minutes] = 0.000095; so CPM * 0.000095 = dose every next minute, uSv.
- multiply: 0.0166666667
binary_sensor:
- platform: template
device_class: safety
name: "geiger Radiation Warning"
# # This doesn't necessarily represent a "dangerous" count, but one that is abnormally high
lambda: |-
if (id(geiger_cpm).state > 100) {
// High Count.
return true;
} else {
// Normal Count.
return false;
}
text_sensor:
- platform: version
name: "geiger ESPHome version"
time:
- platform: homeassistant
id: homeassistant_time
Result …
Some settings like cpm still needs calibration but it is somewhat accurate.
may it help some 
Live long and Prosper
edit: as lurker didnt have rights to post links