mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-11-15 10:45:41 +01:00
326 lines
13 KiB
ReStructuredText
326 lines
13 KiB
ReStructuredText
Using With Sonoff T1 UK 3 Gang
|
|
==============================
|
|
|
|
.. seo::
|
|
:description: Instructions for putting Sonoff T1 UK 3 Gang devices into flash mode and installing ESPHome on them.
|
|
:image: sonoff_t1_uk_3g_v1.1.jpg
|
|
|
|
ESPHome can also be used with Sonoff T1 UK 3 Gang wireless switches. These devices are
|
|
basically just an ESP8266 chip with 3 relays to control power output and three backlit capacitive touch buttons to control the relays.
|
|
|
|
.. note::
|
|
|
|
This instruction is made for T1 UK with the touch board v1.1 which is trickier to get into flash mode
|
|
than v1
|
|
|
|
.. figure:: images/sonoff_t1_uk_3g_v1.1.jpg
|
|
:align: center
|
|
:width: 75.0%
|
|
|
|
Sonoff T1 UK 3 Gang WiFi switch.
|
|
|
|
This guide will step you through setting up your Sonoff T1 UK 3 Gang and flashing the first ESPHome firmware
|
|
with the serial interface. After that, you will be able to upload all future firmwares with the remote
|
|
Over-The-Air update process.
|
|
|
|
.. note::
|
|
|
|
If you've previously installed Sonoff-Tasmota on your Sonoff T1 UK 3 Gang, you're in luck 😀
|
|
ESPHome can generate a firmware binary which you can then upload via the
|
|
Tasmota web interface. To see how to create this binary, skip to :ref:`sonoff_t1_uk_3g_v1.1-creating_firmware`.
|
|
|
|
Since firmware version 1.6.0, iTead (the creator of this device) has removed the ability to upload
|
|
a custom firmware through their own upload process. Unfortunately, that means that the only way to
|
|
flash the initial ESPHome firmware is by physically opening the device up and using the UART
|
|
interface.
|
|
|
|
.. warning::
|
|
|
|
Opening up this device can be very dangerous if not done correctly. While the device is open,
|
|
you will be a single touch away from being electrocuted if the device is plugged in.
|
|
|
|
So, during this *entire* guide **never ever** plug the device in. Also, you should only do this
|
|
if you know what you're doing. If you, at any step, feel something is wrong or are uncomfortable
|
|
with continuing, it's best to just stop for your own safety.
|
|
|
|
It's your own responsibility to make sure everything you do during this setup process is safe.
|
|
|
|
For this guide you will need:
|
|
|
|
- Sonoff T1 UK 3 Gang 😉
|
|
- A USB to UART Bridge for flashing the device. These can be bought on Amazon for less than 5 dollars.
|
|
Note that the bridge *must* be 3.3V compatible. Otherwise you will destroy your Sonoff.
|
|
- Jumper wires to connect the UART bridge to the header pins and to connect GPIO0 to the Ground.
|
|
- Computer running ESPHome or Home Assistant add-on.
|
|
- Screwdriver to open up the Sonoff T1 UK 3 Gang.
|
|
|
|
Have everything? Great! Then you can start.
|
|
|
|
|
|
Step 1: Opening up the Sonoff T1 UK 3 Gang
|
|
------------------------------------------
|
|
|
|
The first step is to open up the Sonoff T1 UK 3 Gang. Note that you do not have to run the original firmware
|
|
supplied with the Sonoff T1 UK 3 Gang before doing this step.
|
|
|
|
.. warning::
|
|
|
|
Just to repeat this: Make **absolutely sure** the device is not connected to any appliance or
|
|
plugged in before doing this step.
|
|
|
|
While the device is not plugged in, turn the device face down and put a narrow flat screwdriver into the slot at the bottom.
|
|
With careful twisting motion detach the faceplate.
|
|
|
|
.. figure:: images/sonoff_t1_uk_3g_back_v1.1.jpg
|
|
:align: center
|
|
:width: 60.0%
|
|
|
|
Careful twisting motion.
|
|
|
|
After that, use the same screwdriver to carefully lift the top PCB off of the switch.
|
|
This PCB contains the ESP chip and what's left inside the switch body are relays.
|
|
|
|
.. figure:: images/sonoff_t1_uk_3g_plate_off_v1.1.jpg
|
|
:align: center
|
|
:width: 75.0%
|
|
|
|
"TOUCH BOARD" with touchpads holds the ESP chip.
|
|
|
|
Step 2: Connecting UART
|
|
-----------------------
|
|
|
|
Now we need our computer to somehow establish a data connection to the board. For this we will
|
|
have to connect the four wires on the UART to USB bridge to the UART pins of the Sonoff T1 v1.1.
|
|
|
|
Fortunately for us, these pins on the ESP controller have dedicated solder pads on the PCB. You can identify
|
|
these by the ``VCC33``, ``RX``, ``TX`` and ``GND`` markings on the silk-screen.
|
|
|
|
Now go ahead and connect these pins to your UART to USB bridge as seen in below image. Make sure
|
|
that you connect these correctly, especially the ``VCC33`` and ``GND`` parts as you can otherwise
|
|
destroy the chip.
|
|
|
|
``VCC33`` should be connected to the ``3V3`` (**not** 5V) pin of the UART bridge, ``GND`` to ``GND``
|
|
and the same with ``RX``/``TX``.
|
|
|
|
There's no need for soldering - for quick job like one time firmware flashing you can just hold pins in respective holes by hand
|
|
provided **you are not touching any live contacts**, only the wires.
|
|
|
|
.. note::
|
|
|
|
On some older T1 UK 3 Gangs, the ``RX`` and ``TX`` pins are swapped (sometimes even the written silkscreen is
|
|
wrong). If your upload fails with an ``error: espcomm_upload_mem failed`` message it's most likely due
|
|
to the pins being swapped. In that case, just swap ``RX`` and ``TX`` and try again - you won't break
|
|
anything if they're swapped.
|
|
|
|
.. _sonoff_t1_uk_3g_v1.1-creating_firmware:
|
|
|
|
Step 3: Creating Firmware
|
|
-------------------------
|
|
|
|
The Sonoff T1 UK 3 Gang is based on the ``ESP8266`` platform (technically it's the ``ESP8285``, but for our purposes
|
|
they're the same) and is a subtype of the ``esp01_1m`` board.
|
|
With this information, you can step through the ESPHome wizard (``esphome sonoff_t1_uk_3g_v1.1.yaml wizard``),
|
|
or alternatively, you can just take the below configuration file and modify it to your needs.
|
|
|
|
.. code-block:: yaml
|
|
|
|
esphome:
|
|
name: <NAME_OF_NODE>
|
|
|
|
esp8266:
|
|
board: esp8285
|
|
|
|
wifi:
|
|
ssid: !secret wifi_ssid
|
|
password: !secret wifi_password
|
|
|
|
api:
|
|
|
|
logger:
|
|
|
|
ota:
|
|
|
|
Now run ``esphome sonoff_t1_uk_3g_v1.1.yaml compile`` to validate the configuration and
|
|
pre-compile the firmware.
|
|
|
|
.. note::
|
|
|
|
After this step, you will be able to find the compiled binary under
|
|
``<NAME_OF_NODE>/.pioenvs/<NAME_OF_NODE>/firmware.bin``. If you're having trouble with
|
|
uploading, you can also try uploading this file directly with other tools.
|
|
|
|
Step 4: Uploading Firmware
|
|
--------------------------
|
|
|
|
In order to upload the firmware, you're first going to need to get the chip into a flash mode, otherwise
|
|
the device will start up without accepting any firmware flash attempts.
|
|
To put ESP8266 into flash mode you need to connect ``GPIO0`` to ``GND`` when the device is powering up.
|
|
|
|
This is a tricky process with T1 and the best way to do it is to use a wire with pins on either side.
|
|
To do this, while the device is UART bridge is not connected to your USB port, flip the PCB over,
|
|
take a wire and connect the second Ground hole on the PCB (red) to the third from the right bottom leg on the chip as depicted below (yellow) -
|
|
that leg is connected to the ``GPIO0`` on ESP and plug the UART to your USB port.
|
|
|
|
Keep holding ``GND`` and ``GPIO0`` connected for 2-4 seconds. The T1 UK 3 Gang should now be in a flash mode and should not blink with any LED.
|
|
The touchpads may light up.
|
|
|
|
.. figure:: images/sonoff_t1_uk_3g_backplate_v1.1.jpg
|
|
:align: center
|
|
|
|
Connect red and yellow contacts while powering the board.
|
|
|
|
Now you can finally run the upload command:
|
|
|
|
.. code-block:: bash
|
|
|
|
esphome sonoff_t1_uk_3g_v1.1.yaml run
|
|
|
|
If successful, you should see something like this:
|
|
|
|
.. figure:: images/sonoff_4ch_upload.png
|
|
:align: center
|
|
|
|
Hooray 🎉! You've now successfully uploaded the first ESPHome firmware to your Sonoff T1 UK 3 Gang. And in a moment,
|
|
you will be able to use all of ESPHome's great features with your Sonoff T1 UK 3 Gang. Now you can put your T1 back together and fire up.
|
|
|
|
.. note::
|
|
|
|
While now your T1 will start up and connect to your WiFi network if you power it up from UART it will not behave normally,
|
|
it may flash random LEDs, turn on and off touchpads' backlight and not react on touching touchpads. This will all be fixed once you re-assemble your T1
|
|
and power it up from the mains power once safe to do so.
|
|
|
|
If above step does, however, not work, here are some steps that can help:
|
|
|
|
- Sometimes the UART bridge cannot supply enough current to the chip to operate, in this
|
|
case use a 3.3V supply you have lying around. A nice hack is to use the power supply of
|
|
NodeMCU boards. Simply connect the NodeMCU's 3.3V to VCC and GND to GND. **Do not attempt
|
|
to plug the device into a socket to overcome this problem while troubleshooting.**
|
|
- In other cases the ``TX`` and ``RX`` pin are reversed. Simple disconnect the device, swap
|
|
the two pins and put it into flash mode again.
|
|
|
|
Step 5: Adding the Button, Relay and LEDs
|
|
-----------------------------------------
|
|
|
|
Now we would like the T1 UK 3 Gang to actually do something, not just connect to WiFi and pretty much sit idle.
|
|
|
|
Below you will find a table of all usable GPIO pins of the Sonoff T1 UK 3 Gang and a configuration file that exposes all
|
|
of the basic functions.
|
|
|
|
======================================== =========================================
|
|
``GPIO0`` Touchpad #1 (inverted)
|
|
---------------------------------------- -----------------------------------------
|
|
``GPIO9`` Touchpad #2 (inverted)
|
|
---------------------------------------- -----------------------------------------
|
|
``GPIO10`` Touchpad #3 (inverted)
|
|
---------------------------------------- -----------------------------------------
|
|
``GPIO12`` Relay #1 and Touchpad #1 backlight
|
|
---------------------------------------- -----------------------------------------
|
|
``GPIO5`` Relay #2 and Touchpad #2 backlight
|
|
---------------------------------------- -----------------------------------------
|
|
``GPIO4`` Relay #3 and Touchpad #3 backlight
|
|
---------------------------------------- -----------------------------------------
|
|
``GPIO13`` Blue LED (inverted)
|
|
---------------------------------------- -----------------------------------------
|
|
``GPIO1`` ``RX`` pin (for external sensors)
|
|
---------------------------------------- -----------------------------------------
|
|
``GPIO3`` ``TX`` pin (for external sensors)
|
|
======================================== =========================================
|
|
|
|
.. code-block:: yaml
|
|
|
|
esphome:
|
|
name: <NAME_OF_NODE>
|
|
|
|
esp8266:
|
|
board: esp01_1m
|
|
|
|
wifi:
|
|
ssid: !secret wifi_ssid
|
|
password: !secret wifi_password
|
|
|
|
api:
|
|
|
|
logger:
|
|
|
|
ota:
|
|
|
|
binary_sensor:
|
|
- platform: gpio
|
|
pin:
|
|
number: GPIO0
|
|
mode:
|
|
input: true
|
|
pullup: true
|
|
inverted: true
|
|
name: "Sonoff T1 UK 3 Gang Touchpad 1"
|
|
- platform: gpio
|
|
pin:
|
|
number: GPIO9
|
|
mode:
|
|
input: true
|
|
pullup: true
|
|
inverted: true
|
|
name: "Sonoff T1 UK 3 Gang Touchpad 2"
|
|
- platform: gpio
|
|
pin:
|
|
number: GPIO10
|
|
mode:
|
|
input: true
|
|
pullup: true
|
|
inverted: true
|
|
name: "Sonoff T1 UK 3 Gang Touchpad 3"
|
|
- platform: status
|
|
name: "Sonoff T1 UK 3 Gang Status"
|
|
|
|
switch:
|
|
- platform: gpio
|
|
name: "Sonoff T1 UK 3 Gang Relay 1"
|
|
pin: GPIO12
|
|
- platform: gpio
|
|
name: "Sonoff T1 UK 3 Gang Relay 2"
|
|
pin: GPIO5
|
|
- platform: gpio
|
|
name: "Sonoff T1 UK 3 Gang Relay 3"
|
|
pin: GPIO4
|
|
|
|
output:
|
|
# Register the blue LED as a dimmable output ....
|
|
- platform: esp8266_pwm
|
|
id: blue_led
|
|
pin: GPIO13
|
|
inverted: true
|
|
|
|
light:
|
|
# ... and then make a light out of it.
|
|
- platform: monochromatic
|
|
name: "Sonoff T1 UK 3 Gang Blue LED"
|
|
output: blue_led
|
|
|
|
|
|
Above example also showcases an important concept of ESPHome: IDs and linking. In order
|
|
to make all components in ESPHome as "plug and play" as possible, you can use IDs to define
|
|
them in one area, and simply pass that ID later on. For example, above you can see a PWM (dimmer)
|
|
output being created with the ID ``blue_led`` for the blue LED. Later on it is then transformed
|
|
into a :doc:`monochromatic light </components/light/monochromatic>`.
|
|
If you additionally want the buttons to control the relays, look at `the complete Sonoff T1 UK 3 Gang
|
|
with automation example <https://github.com/esphome/esphome-docs/blob/current/devices/sonoff_t1_uk_3gang_v1.1.yaml>`__.
|
|
|
|
Step 6: Finishing Up
|
|
--------------------
|
|
|
|
If you're sure everything is done with the T1 UK 3 Gang and have double checked there's nothing that could cause a short
|
|
in the case, you can put the T1 back together.
|
|
|
|
Now triple- or even quadruple-check the UART bridge is not connected to the T1 UK 3 Gang, then comes the time when you can
|
|
connect it.
|
|
|
|
Happy hacking!
|
|
|
|
See Also
|
|
--------
|
|
|
|
- :doc:`sonoff`
|
|
- :doc:`sonoff_4ch`
|
|
- :doc:`sonoff_s20`
|
|
- :ghedit:`Edit`
|