ESPHomeGenericSitStandDesk
I have one of those generic relatively cheap Sit Stand Desks. In an effort to monitor my desk usage I developed this overkill solution for integrating the desk into a smart home like Home Assistant.
In addition to reporting the height, the ESP can also send commands to activate saved memory profiles or move the desk manually.
In combination with a chair occupancy sensor like this one, you can move the desk into sitting position upon taking a seat.
This is a custom Component for ESPHome based on the ESPHome UART Bus.
Requirements
- a compatible Standing Desk (so far only my desk has been tested)
- ESPHome 2021.12.0 or higher
- Home Assistant Core 2021.12 or higher
Usage
external_components:
- source: github://TillFleisch/ESPHomeGenericSitStandDesk@main
uart:
id: uart_bus
tx_pin: TX
rx_pin: RX
baud_rate: 57600
generic_desk:
id: desk1
uart_id: uart_bus
# The Desks height measured in the lowest position
base_height: 66.4
#Optional correction factor, in case the height does not scale properly
correction_term: 1.24836
sensor:
- platform: desk_height_sensor
desk_id: desk1
id: desk_height
name: "Desk Height"
binary_sensor:
- platform: desk_is_moving_sensor
desk_id: desk1
id: desk_is_moving
name: "Desk is Moving"
switch:
- platform: desk_switch
desk_id: desk1
name: "Up"
direction: true
- platform: desk_switch
desk_id: desk1
name: "Down"
direction: false
button:
- platform: desk_memory_button
desk_id: desk1
name: "M1"
memory_id: 1
- platform: desk_memory_button
desk_id: desk1
name: "M2"
memory_id: 2
- platform: desk_memory_button
desk_id: desk1
name: "M3"
memory_id: 3
- platform: desk_memory_button
desk_id: desk1
name: "M4"
memory_id: 4An example configuration can be found here.
Entities
This Component can provide the following entities:
Controls:
- M1
- M2
- M3
- M4
- Up
- Down
Sensors:
- height
- is moving
Wiring
On my particular model the Handset is connected via a RJ-45 connector.
| Control Box | Handset |
|---|---|
 |
 |
The ESP is connected according to this wiring diagram. It replaces the Handset.
ESP RJ-45 (T-568B) Control Box
1 (Orange/White) -
2 (Orange) -
VIN ------- 3 (Green/White) - 5V
4 (Blue) -
5 (Blue/White) -
GND ------- 6 (Green) - GND
TX ------- 7 (Brown/White) - RX
RX ------- 8 (Brown) - TX
Be aware that most ESPs run on 3.3v!
Communication
For information regarding the communication between the Controller and Handset look here.