…and printed a couple of enclosures; one for the board and another for the dimmer. I used two enclosures so I could fit them through the hole in the base, and either side of the shaft that runs through the middle and connects to the bulb holder.
Unfortunately, dimming produces an annoying flicker, hence dimming is currently not enabled via touch in my YAML. I could just do away with the dimmer altogether, wire the bulb to mains AC and just use the ESP32 to control a smart bulb via touch.
YAML for ESPHome here:
esphome:
name: "smart-touch-1"
friendly_name: Smart Touch Lamp 1
esp32:
board: esp32-s3-devkitc-1
framework:
type: arduino
# Enable logging
logger:
level: info
# level: debug
# Enable Home Assistant API
api:
encryption:
key: !secret api_key
ota:
- platform: esphome
password: !secret ota_password
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "FR-Lamp-Touch"
password: !secret wifi_password
# Enable Web server.
web_server:
port: 80
captive_portal:
esp32_touch:
setup_mode: true
measurement_duration: 0.25ms
binary_sensor:
- platform: esp32_touch
name: "Touch Pad Pin 13"
pin: GPIO13
threshold: 40000
filters:
# Small filter, to debounce the spurious events.
- delayed_on: 10ms
- delayed_off: 10ms
#on_press:
on_click:
- min_length: 10ms
max_length: 500ms
# Short touch to cycle through brightnesses
then:
- number.increment:
id: dimmer_control
cycle: true
number:
- platform: template
name: Dimmer Control
id: dimmer_control
min_value: 0
max_value: 100
step: 100
optimistic: true
set_action:
then:
- light.turn_on:
id: dimmer
brightness: !lambda 'return x / 100.0;'
# restart-button
button:
- platform: restart
name: "restart-esp32-dim-touch"
# AC Dimmer Configuration
light:
- platform: monochromatic
id: dimmer
name: "Smart Lamp"
output: ac_dimmer_output
restore_mode: RESTORE_DEFAULT_OFF
#on_turn_on: IS THIS NEEDED??
# - light.turn_on:
# id: dimmer
# brightness: 1.0 # Set initial brightness to 100% on power up
output:
- platform: ac_dimmer
id: ac_dimmer_output
gate_pin: GPIO12 # Gate pin for controlling the dimmer (GPIO12)
zero_cross_pin:
number: GPIO5 # Zero-cross pin for synchronization (GPIO5)
mode:
input: True
inverted: yes
This is fantastic, thank you for sharing. I have a couple of similar lamps, from Dunelm, that I love to make smart but didn’t know how to approach it. I’ll be following this.
Hey Ben_Terry! I recently came across this post and your youtube video walking through your smart home and decided I wanted to do this project as well. I similarly had issues with dimming and landed on the following for my yaml, which I think might be worth your trying:
esphome:
name: bed-touch-sensor
friendly_name: bed_touch_sensor
esp32:
board: esp32dev
framework:
type: esp-idf
# Enable logging
logger:
# Enable Home Assistant API
api:
encryption:
key:
ota:
- platform: esphome
password: "520dc5853fdcb2727fc4c5ff8e240355"
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid:
password:
captive_portal:
esp32_touch:
setup_mode: false
measurement_duration: 0.25ms
binary_sensor:
- platform: esp32_touch
name: "touch_sensor"
id: touch_sensor
pin: GPIO4
threshold: 10
filters:
# Small filter, to debounce the spurious events.
- delayed_on: 10ms
- delayed_off: 10ms
on_multi_click:
- timing:
- ON for at most 0.7s
then:
- logger.log: "simple click"
- timing:
- ON for at least 1s
then:
- logger.log: "LONG click"
- while:
condition:
binary_sensor.is_on: touch_sensor
then:
- light.dim_relative:
id: light
relative_brightness: 1%
transition_length: 0.1s
- delay: 0.1s
# restart-button
button:
- platform: restart
name: "restart-esp32-dim-touch"
# AC Dimmer Configuration
light:
- platform: monochromatic
id: light
name: "Light"
output: ac_dimmer_output
restore_mode: RESTORE_DEFAULT_OFF
output:
- platform: ac_dimmer
id: ac_dimmer_output
gate_pin: GPIO13 # Gate pin for controlling the dimmer (GPIO13)
zero_cross_pin:
number: GPIO5 # Zero-cross pin for synchronization (GPIO5)
mode:
input: True
inverted: yes
zero_cross_interrupt_type: any
method: leading
and I have a script and automation setup to handle how the touch inputs are handled right now, which I can share as well, which is why the "simple click" has not action tied to it - my automation triggers based on the simple click and then runs a script that sets the brightness based on the current state of the light (50% -> 75% -> 100% -> off -> repeat).
The "LONG Click" is continuing to hold the sensor and it will increase the light by 1% over a period of time until released or until it reaches 100%. I'm sure its possible to make it reach 100% and then turn around and go down again, but I haven't figure that out yet.
The things that I know helped because I was getting some really bad flickering in my setup were the zero_cross_interrupt_type: any and method: leading.
Hopefully this helps you or someone else!
Thanks for the great write up and project, without your starting point I think I would have struggled much more than I did.
For reference, from the docs:
Configuration variables
gate_pin (Required, Pin): The pin used to control the Triac or Mosfet.
zero_cross_pin (Required, Pin): The pin used to sense the AC Zero cross event, you can have several dimmers controlled with the same zero cross detector, in such case duplicate the zero_cross_pin config on each output. When doing so, allow_other_uses pin schema option must be set to true to avoid configuration errors due to pin reuse.
zero_cross_interrupt_type (Optional): Set the interrupt type for the zero crossing interrupt, can be:
FALLING : (default) trigger on falling edges.
RISING : trigger on rising edges.
ANY : trigger on any edge.
method (Optional): Set the method for dimming, can be:
leading pulse : (default) a short pulse to trigger a triac.
leading : gate pin driven high until the zero cross is detected
trailing : gate pin driven high from zero cross until dim period, this method is suitable for mosfet dimmers only.
