Table of Contents
- First Programming attempt
- Space issues
- Configuration files
- xcrhom-rgb-1.yaml
- xcrhom-rgb.yaml
- common.yaml
I bought some more ESPHome RGB bulbs from AliExpress (hey, the US is unpredictable right now in terms of tariffs so I’m avoiding purchasing from them until this “trade war” has gone away). They came in as XCRHom.tech RGB bulbs (great name, definitely not a typo) and they have a less than useful website for well, anything https://xcrhom.tech/
There’s no details on what the actual config should be, the pinouts or anything like that.
First Programming attempt
I found these bulbs didn’t like connecting to my usual “IOT” network, which I suspect was due to the preinstalled firmware and the fact I use the same SSID for 2.4 and 5GHz (maybe I should change that at some point), so I used my IOS(hit) network which is just 2.4GHz. And that worked fine. From there I could hit them with a config file.
Since they seemed very similar to my existing Athom bulbs, I used that config file, but it didn’t work that great
- On/Off ✅
- Setting to White ❌ The bulb went Blue
- Setting to Red ❌ The bulb went White
- Setting to Blue❌ The bulb went Green
- Setting to Green ❌ The bulb went Red
So this was less then awesome, but pretty easy to reorder the inputs
Space issues
The next issue I encountered was lack of space on reflashing, this was because it couldn’t store the new firmware to update to when it was running the previously programmed firmware. This wasn’t an issue with the first flash as the “staged” basic firmware takes up very little space.
Since the athom bulbs came with a preprogrammed NTP config, which I didn’t really need, I just deleted that from the configuration file and it bought the size down enough to program without any issues
Configuration files
As with my previous configurations, I use a combination of files.
xcrhom-rgb-1.yaml
(repeat this file for each bulb just changing the file name and number)
substitutions:
number: "1"
friendly_name: "XCRhome RGBCW Bulb ${number}"
# Allows ESP device to be automatically linked to an 'Area' in Home Assistant. Typically used for areas such as 'Lounge Room', 'Kitchen' etc
room: ""
# Description as appears in ESPHome & top of webserver page
device_description: "xcrhom 7w rgbcw light bulb"
# Restore the light (GPO switch) upon reboot to state:
light_restore_mode: RESTORE_DEFAULT_ON
# Enables faster network connections, with last connected SSID being connected to and no full scan for SSID being undertaken
wifi_fast_connect: "false"
# Enable or disable the use of IPv6 networking on the device
ipv6_enable: "false"
color_interlock: "true"
<<: !include common/xcrhom-rgbct.yamlxcrhom-rgb.yaml
# Put these in the parent file
# substitutions:
# number:
# friendly_name: "XCRHom RGBCW Bulb ${number}"
# # Allows ESP device to be automatically linked to an 'Area' in Home Assistant. Typically used for areas such as 'Lounge Room', 'Kitchen' etc
# room: ""
# # Description as appears in ESPHome & top of webserver page
# device_description: "XCR 7w rgbcw light bulb"
# # Restore the light (GPO switch) upon reboot to state:
# light_restore_mode: RESTORE_DEFAULT_ON
# # Define a domain for this device to use. i.e. iot.home.lan (so device will appear as athom-smart-plug-v2.iot.home.lan in DNS/DHCP logs)
# dns_domain: ".local"
# # Enables faster network connections, with last connected SSID being connected to and no full scan for SSID being undertaken
# wifi_fast_connect: "false"
# # Enable or disable the use of IPv6 networking on the device
# ipv6_enable: "false"
# color_interlock: "true"
packages:
restore_light_state: !include restore_light_state.yaml
common: !include common.yaml
esphome:
name: "xcrhome-rgbcw-bulb-${number}"
# Default friendly name
friendly_name: "${friendly_name}"
comment: "${device_description}"
area: "${room}"
name_add_mac_suffix: false
min_version: 2024.6.0
esp8266:
board: esp8285
restore_from_flash: true
preferences:
flash_write_interval: 1min
binary_sensor:
- platform: status
name: "Status"
entity_category: diagnostic
sensor:
- platform: uptime
name: "Uptime Sensor"
id: uptime_sensor
entity_category: diagnostic
internal: true
- platform: wifi_signal
name: "WiFi Signal dB"
id: wifi_signal_db
update_interval: 60s
entity_category: "diagnostic"
button:
- platform: restart
name: "Restart"
entity_category: config
- platform: safe_mode
name: "Safe Mode"
internal: false
entity_category: config
output:
- platform: esp8266_pwm
id: white_output
pin: GPIO4
min_power: 0.000499
max_power: 1
- platform: esp8266_pwm
id: red_output
pin: GPIO12
min_power: 0.000499
max_power: 1
- platform: esp8266_pwm
id: green_output
pin: GPIO14
min_power: 0.000499
max_power: 1
- platform: esp8266_pwm
id: warm_white_output
pin: GPIO13
min_power: 0.000499
max_power: 0.9
- platform: esp8266_pwm
id: blue_output
pin: GPIO5
min_power: 0.000499
max_power: 0.9
light:
- platform: rgbww
id: rgbww_light
name: "RGBCW_Bulb"
restore_mode: ${light_restore_mode}
red: red_output
green: green_output
blue: blue_output
warm_white: warm_white_output
cold_white: white_output
cold_white_color_temperature: 6000 K
warm_white_color_temperature: 3000 K
color_interlock: ${color_interlock}
text_sensor:
- platform: wifi_info
ip_address:
name: "IP Address"
entity_category: diagnostic
ssid:
name: "Connected SSID"
entity_category: diagnostic
mac_address:
name: "Mac Address"
entity_category: diagnostic
# Creates a sensor showing when the device was last restarted
- platform: template
name: "Last Restart"
id: device_last_restart
icon: mdi:clock
entity_category: diagnostic
common.yaml
substitutions:
wifi_fast_connect: "false"
# Common configuration to setup defaults
logger:
web_server:
captive_portal:
mdns:
api:
ota:
platform: esphome
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
ap:
power_save_mode: none
# Allow rapid re-connection to previously connect WiFi SSID, skipping scan of all SSID
fast_connect: "${wifi_fast_connect}"
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