ACER H5360 (Emachines V700) - RS232 Control and IR Control for Yamaha AV - Solved

Goahead · September 23, 2021, 2:52pm

In the process of making my Emachines V700 (Acer H5360 clone) working with Google assistant, with Home Assistant and ESP8266 (Wemos D1 Mini).

Almost every Acer projector uses same commands, you just need to find pin-out of RS232 of your specific model.

My first test was done in an very old laptop, so the only terminal SW that worked in xp was Termite.

I was able to power ON and OFF projector using RS232, and commands as showed in image:

In my case, the PIN-out od the DIN 3-Pins in projector is as followed (used a straight cable, so I had to cross TX with RX):

So my next step is to connect Wemos D1 Mini to a TTL-RS232 IC.
I will use the max233 (no capacitors needed) and because that’s what I have available at home electronics junk

I will use GPIO1 and GPIO3 for that from ESP8266.
I will keep you all posted for more developments, cause I know i will step in some nails regarding SW.

Goahead · September 23, 2021, 6:26pm

Here we go…

uart:
  id: uart_bus
  tx_pin: 1
  rx_pin: 3
  baud_rate: 9600
  data_bits: 8
  parity: NONE
  stop_bits: 1
  
#text_sensor:
#- platform: custom
#  lambda: |-
#    auto my_custom_sensor = new UartReadLineSensor(id(uart_bus));
#    App.register_component(my_custom_sensor);
#    return {my_custom_sensor};
#  text_sensors:
#    id: "uart_readline"

switch:
# switch via IR

  - platform: template
    name: "Yamaha Audio ON"
    id: Power_yamaha_audio_ON
    turn_on_action:
      - remote_transmitter.transmit_raw:
          code: [8943, -4484, 553, -577, 575, -1628, 604, -1626, 603, -1651, 579, -1648, 636, -1568, 579, -1649, 578, -581, 547, -1654, 630, -523, 551, -578, 549, -551, 579, -575, 549, -605, 607, -521, 522, -1706, 499, -602, 552, -1678, 549, -581, 576, -1681, 630, -469, 607, -1623, 576, -577, 579, -548, 553, -1678, 525, -550, 631, -1622, 499, -629, 525, -1702, 500, -656, 497, -1735, 522, -1703, 472]
          carrier_frequency: 38kHz
          repeat:
            times: 3
            wait_time: 10ms
  - platform: template
    name: "Yamaha Audio Off"
    id: Power_yamaha_audio_OFF
    turn_on_action:
      - remote_transmitter.transmit_raw:
          code: [8943, -4484, 553, -577, 575, -1628, 604, -1626, 603, -1651, 579, -1648, 636, -1568, 579, -1649, 578, -581, 547, -1654, 630, -523, 551, -578, 549, -551, 579, -575, 549, -605, 607, -521, 522, -1706, 499, -602, 552, -1678, 549, -581, 576, -1681, 630, -469, 607, -1623, 576, -577, 579, -548, 553, -1678, 525, -550, 631, -1622, 499, -629, 525, -1702, 500, -656, 497, -1735, 522, -1703, 472]
          carrier_frequency: 38kHz
          repeat:
            times: 3
            wait_time: 10ms

#Switch via UART


  - platform: uart
    name: "POWER ON PROJECTOR"
    data: '* 0 IR 001\r'

Able to make connection between ESP and MAX233…seems not
Getting only strange data.
Termite is ok, cause I didnt change config since I was able to send commands to projector.

Any sugestions?

Goahead · September 23, 2021, 6:28pm

I would use this, but no clue about parameters:

nickrout · September 23, 2021, 9:18pm

Any suggestions? Yeah post some logs.

Goahead · September 23, 2021, 11:13pm

Got it…at least I have correct uart comunication.
Rookie error…didnt read the small letters…wire diagram is diferent for DIP20 and SO20…maxim tricks

I have so many questions…but lets start with \r and \n
Shouldnt I sent a command per line, so the projector can read it?

In the picture I am sending:

  - platform: uart
    name: "POWER ON PROJECTOR"
    data: '* 0 IR 001\r'

In that case I pressed 3 times.
I got same result with \n\r or \r\n

So I need to send

data: '* 0 IR 001'

and then click return and move to next line

The second question is how to treat this as a switch with on and off (not separated pulses) and read projector feedback status, cause after sending correct code the projector sends “000” for correct trigger and “001” for fail.

Help needed,

Goahead · September 23, 2021, 11:40pm

For question one, its seems to be yaml issue.
https://yaml.org/spec/1.2/spec.html#id2776092
Need to use double quotes…I will try this tomorrow:

  - platform: uart
    name: "POWER OFF PROJECTOR"
    data: "* 0 IR 002\r\n"

Goahead · September 24, 2021, 9:18am

Double quotes was the issue…Now \r\n works.

Moving now to the read (rx) part after sending a message.

Any help appreciated.

Goahead · September 24, 2021, 12:44pm

With the code bellow, when I Switch On (press), the data for on state is sent, but switch goes immediately back to off (does not send off state data)

always_off_position

  - platform: template
    name: "POWER PROJECTOR"
    id: turn_projector_power
    turn_on_action: 
      uart.write: "* 0 IR 001\r\n"
    turn_off_action: 
      uart.write: "* 0 IR 002\r\n"

Do I need to start working in “read status from UART” or is it possible to have a working switch without status?

Simple things seem the hardest.
Just want a switch to toggle on/off and write uart data for on and off.

then i would focus in binary status reading from uart

Goahead · September 27, 2021, 2:08pm

Project finished - Sucess:
Well I had to move from ESPHome to Tasmota since I was not able to get the results:

Serial config for projector and IRconfig for AV Receiver

Load Tasmota firmware tasmota-zbbridge.bin
Configure Tasmota webpage (from ip) to generic18
Assing gpio1 e gpio3 to serialtx and serialrx
To set Tasmota Serial connection to 9600, we had to enter this command in the console: baudrate 9600
Make a wire loop in HW from TX and RX to test its working:
In the console (tasmota IP webpage), write SerialSend XXXX would see a SerialReceived XXXX. Proof that sending and receiving does something.
I use idx3 meaning serialsend3:
serialsend3 \r* 0 IR 001#\r (power on do acer)
serialsend3 \r* 0 IR 002#\r (power off do acer)
In this case I am sending *0 IR 001 (commando to power on ACER projector)
Acer should respond *000 (IRReceived in console). If received 001 means Notok
(If projector is on and you send 0 IR 001 you will receive 001. In this case means it could not comply with request cause projector was already on)
23:22:27.624 CMD: Grp 0, Cmnd ‘SERIALSEND’, Idx 3, Len 12, Data '\r 0 IR 001#\r’
23:22:27.629 MQT: stat/SERIALIR/RESULT = {“SerialSend”:“Done”}
23:22:27.799 MQT: tele/SERIALIR/RESULT = {“SerialReceived”:"\r001#\r"}
Configure mqtt in tasmota webpage ip (theres alot of info for this in the internet)
Try send command again using mqtt in HA:
Topic: cmnd/SERIALIR/serialsend3
Payload: \r*001#\r
Now lets the same command in a script – this script will be called from other automations.
Scripts uses the MQTT service to transmit a topic on MQTT.
You can edit Scripts.yaml or create it inside HA

projectoronemachinesv700:
  alias: Trun ON Projector Emachines V700
  sequence:
  - service: mqtt.publish
    data:
      topic: cmnd/SERIALIR/serialsend3
      payload: \r* 0 IR 001\r
  mode: single
  icon: mdi:video-vintage
projectoroffemachinesv700:
  alias: Trun OFF Projector Emachine V700
  sequence:
  - service: mqtt.publish
    data:
      topic: cmnd/SERIALIR/serialsend3
      payload: \r* 0 IR 002\r
  mode: single
  icon: mdi:video-vintage

Now lets create switch for those 2 scripts:(configuration.yaml)

switch:
  platform: template
  switches:
    projector_power:
      turn_on:
          service: script.projectoronemachinesv700
      turn_off:
          service: script.projectoroffemachinesv700

Now we have and switch called: switch.projector_power

!!Done

Next step, create the On and Off commands using IR to power ON and OFF one Yamaha RX-V371

Goahead · September 27, 2021, 5:37pm

Tasmota IR config
Yamaha RX-V371

I found some IR codes that work with my AV receiver, and seems to work with several others:
After connecting 2 IR leds with NPN transistor @5V with correct resistor (dont have correct values at this moment) in the same Tasmota that as RS232, and IR leds connected into GPIO4
Open tasmota web page and configure GPIO4 as IRsend
Testing IR send in tasmota console
Power on e off:
Toggle:
IRsend {“Protocol”:“NEC”,“Bits”:32,“Data”:“0x7E8154AB”,“Repeat”:0}
Power On:
IRsend {“Protocol”:“NEC”,“Bits”:32,“Data”:“0x7E817E81”,“Repeat”:0}
PowerOff:
IRsend {“Protocol”:“NEC”,“Bits”:32,“Data”:“0x7E81FE01”,“Repeat”:0}

Voilá…Amp turns on and off. makes no sense to use toggle.

Create a script for each command (ON and OFF)
Service call
mqtt_publish
Topic: cmnd/SERIALIR/IRsend
Payload: {“Protocol”:“NEC”,“Bits”:32,“Data”:“Choose code for ON or OFF”,“Repeat”:0}
Create a switch in configuration.yaml that will use the scripts

Switch: 
  platform: template
  switches:
    Power_yamaha:
      turn_on:
          service: script.power_yamaha_amplifier_on
      turn_off:
          service: script.power_yamaha_amplifier_off

Done…

I needed to group the 2 switchs into one, so I could tell Google assistant to turn on and off both at same time. So I went for the easiest approach.

Create a switch in configuration.yaml

      home_cinema:
        turn_on:
          - service: switch.turn_on
            entity_id: switch.projector_power
          - service: switch.turn_on
            entity_id: switch.power_yamaha
        turn_off:
          - service: switch.turn_off
            entity_id: switch.projector_power
          - service: switch.turn_off
            entity_id: switch.power_yamaha

Sync devices with google home
Rename “home_cinema” to “home cinema” in google home app
So now I can turn on and off appliances with voice command:

Hey Google, Turn on Home cinema
Hey Google, Turn off Home cinema

Done!

Goahead · September 27, 2021, 5:40pm

All of this writing will help me as a reminder in the future, and it may help others with similar project.

francisp · September 27, 2021, 5:44pm

I just don’t understand why you used tasmota-zbbridge.bin ?

Goahead · September 27, 2021, 6:43pm

I read somewhere that zbbridge has serial protocol even if it is for zigbee.
Maybe tasmota.bin would work. Didnt test it.

francisp · September 28, 2021, 1:37am

Did not think about that one

RT1080 · January 22, 2022, 3:18pm

I was inspired by GitHub - samm-git/marantz-rc-esp32: Web based remote control for Matantz amplifier using ESP32 - rather than using IR Leds this uses a IR in port on the receiver, IR commands are emulated on the ESP. My Yamaha AV also has a jack in ir optionality, some digging around and combining some of the great work of others I now have a working prototype.

Using a wemos d1 mini and a mono jack connected to D2 and GND I am no able to control my old RX-V863 Yamaha through HA. Included below a link to my repo on Github: