I’m also having the same issue where I’m getting a “successful” install but when it tries to connect I get: An error occurred. Improv Wi-Fi Serial not detected. I’m using the same USB to TTL adapter @haydon is using. Have folks soldered on the leads to the board? I have clips right now.
I soldered to mine, don’t have clips…
I’m not sure why you’re getting that error though, I wonder if the code has changed…
1 Like
Ok, I found this and it worked! New device: An error occurred. Improv Wi-Fi Serial not detected - #15 by Vahaldor
Yesterday I got fan NR2 in the house:
The entire installation went smooth 
glad that annoying beep is gone.
The only thing I had to remember is when and for how long to hold the boot button
I reused the entire code of the old fan and changed a few wifi things.
Here is the code again so a new person does not have to scroll too far :
substitutions:
name: ifan04-h-office
device_description: Sonoff iFan04-H
friendly_name: ifan04-h-office
globals:
- id: target_fan_speed
type: int
- id: start_time_offset
type: int
esphome:
name: ${name}
comment: ${device_description}
platform: ESP8266
board: esp01_1m
on_boot:
priority: 225
# turn off the light as early as possible
then:
- light.turn_off: fan_light
on_loop:
lambda: |-
if (id(start_time_offset) && (millis() > id(start_time_offset))) {
ESP_LOGD("IFAN04", "Setting target speed: %d", id(target_fan_speed));
auto call = id(the_fan).turn_on();
call.set_speed(id(target_fan_speed));
call.perform();
id(start_time_offset) = 0;
}
# Disable logging on serial as it is used by the remote
logger:
baud_rate: 0
# Enable Home Assistant API
api:
encryption:
key: !secret ifan_api_2
ota:
- platform: esphome
password: !secret ota_password
wifi:
ssid: !secret lot_wifi_ssid
password: !secret lot_wifi_password
fast_connect: true
power_save_mode: light
use_address: !secret ip-fan-moff
ap:
ssid: "Ifan04-H-Office"
password: !secret ifan_fallback
captive_portal:
external_components:
- source: github://ssieb/custom_components
components: [ ifan04 ]
uart:
tx_pin: GPIO01
rx_pin: GPIO03
baud_rate: 9600
ifan04:
on_fan:
- lambda: |-
if (speed) {
auto call = id(the_fan).turn_on();
call.set_speed(speed);
call.perform();
if (id(buzzer_dummy).state) {
switch(id(target_fan_speed)) {
case 3:
id(buzzer_pin).turn_on();
delay(50);
id(buzzer_pin).turn_off();
delay(50);
case 2:
id(buzzer_pin).turn_on();
delay(50);
id(buzzer_pin).turn_off();
delay(50);
case 1:
id(buzzer_pin).turn_on();
delay(50);
id(buzzer_pin).turn_off();
}
}
} else {
id(target_fan_speed) = 0;
id(start_time_offset) = 0;
auto call = id(the_fan).turn_off();
call.perform();
}
on_light:
- light.toggle: fan_light
on_buzzer:
- switch.toggle: buzzer_dummy
sensor:
- platform: wifi_signal
name: ${friendly_name} Signal
update_interval: 60s
text_sensor:
- platform: version
hide_timestamp: true
name: "${friendly_name} ESPHome Version"
entity_category: diagnostic
- platform: wifi_info
ip_address:
name: "${friendly_name} IP Address"
icon: mdi:wifi
entity_category: diagnostic
ssid:
name: "${friendly_name} Connected SSID"
icon: mdi:wifi-strength-2
entity_category: diagnostic
binary_sensor:
- platform: gpio
id: button
pin: GPIO0
on_press:
then:
- light.toggle: fan_light
interval:
- interval: 500ms
then:
- if:
condition:
not:
wifi.connected:
then:
- light.turn_on:
id: led1
brightness: 100%
transition_length: 0s
- delay: 250ms
- light.turn_off:
id: led1
transition_length: 250ms
output:
- platform: template
id: fanoutput
type: float
write_action:
- lambda: |-
if (state) {
int speed = int(state / 0.33);
if (!id(target_fan_speed) && (speed < 3)) {
ESP_LOGD("IFAN04", "Fan currently off, boosting speed");
id(target_fan_speed) = speed;
state = 1.0;
id(start_time_offset) = millis() + 5000; // 5 second delay
} else {
id(start_time_offset) = 0;
id(target_fan_speed) = speed;
}
}
if (state < 0.3) {
// OFF
id(target_fan_speed) = 0;
id(start_time_offset) = 0;
id(fan_relay1).turn_off();
id(fan_relay2).turn_off();
id(fan_relay3).turn_off();
} else if (state < 0.6) {
// low speed
id(fan_relay1).turn_on();
id(fan_relay2).turn_off();
id(fan_relay3).turn_off();
} else if (state < 0.9) {
// medium speed
id(fan_relay1).turn_off();
id(fan_relay2).turn_on();
id(fan_relay3).turn_off();
} else {
// high speed
id(fan_relay1).turn_off();
id(fan_relay2).turn_off();
id(fan_relay3).turn_on();
}
- platform: gpio
id: light_relay
pin: GPIO9
inverted: true
- platform: gpio
id: buzzer_pin
pin: GPIO10
inverted: true
- platform: esp8266_pwm
id: led_pin
pin: GPIO13
inverted: true
light:
- platform: binary
id: fan_light
name: "${friendly_name} Light"
output: light_relay
- platform: monochromatic
id: led1
output: led_pin
default_transition_length: 0s
restore_mode: always off
switch:
- platform: restart
name: "${friendly_name} Restart"
- platform: template
id: buzzer_dummy
name: "Buzzer"
optimistic: True
- platform: gpio
id: fan_relay1
pin: GPIO14
- platform: gpio
id: fan_relay2
pin: GPIO12
- platform: gpio
id: fan_relay3
pin: GPIO15
fan:
- platform: speed
id: the_fan
name: "${friendly_name} Fan"
output: fanoutput
speed_count: 3
Hi there. When using your YAML I am getting this error. This is only my 2nd esphome device so I am a relative newbie. Any advice?
ERROR Error while reading config: Invalid YAML syntax:
Secret ‘ifan_api_2’ not defined
in “/config/esphome/sonoff-fan-jeff-office.yaml”, line 39, column 10
You need to create this secret in the secrets file then it will compile for you
(post deleted by author)