I have a EZ-MX42PRO-HAS HDMI Matrix from ezcoo (LINK). With the micro-USB connector on the front you can control the matrix via serial and query the status (You can read the documentation when you download the “Update and setting kit”.). Now i want to integrate it to my HA over WLAN. I have already found out that HA offers a serial integration, but I would prefer a solution via WLAN since my HA host is located further away.
An integration via IR I also do not want because I can not query the status. (And I have lost the remote control to be able to record the signals [And I do not want to pay 25€ shipping for a 8€ remote control ])
I already searched Google and blog posts and came across this git-project from jeelabs (LINK) which might be a good fit. But I’m having trouble figuring out how to connect the micro-USB cable to my ESP8266. I already found out that I need a development board that acts as a USB host, but I can’t find one that fits. All boards I find I think are more for programming the ESP like this one: andino.shop/en/p/ftdi-232-adapter
Am I on the right track or do I have to rethink the whole concept and start over?
I hope someone can help me.
Thanks in advance for your help!
Greetings from Germany!
Won’t work as it’s serial over USB so not supported so far in ESPHome !! Maybe with the latest ESP that integrates an USB port but even not sure it would work as you need a driver to get ESP to be able to handle serial on USB
@da_hepfe unhappy not as control through an USB port is quite complicated to handle in an automation system. I’m always very careful to select products I buy to have a proper control on it (serial mode through an RS-232/422/485 port, or TCP/IP
As indicated before it might be possible with the new ESP that have an USB port native but you’ll need to code it by yourself as it’s far to be supported in ESPHome right now
I Hope this helps anyone that found this post via Google.
The EZ-MX42PRO-HAS has a USB port that has a rs232 to usb chip onboard (CH340). I think the reason is to make it easier for people to use the product. Anyone that is serious about Home Automation and Home Theater does not use USB todo anything.
So I bought one, why??? Because the old version of the EZ has a serial port and if it doesn’t I have a soldering iron
Once received I opened it up and low and behold a serial connector right on the PCB.
The only issue I had to hook it up to a ESP32 is that the serial is 5 volt and the esp32 and 5 volt really do not match.
Baud rate is pretty high… some level shifter clones go barf at those speeds
I used TXD/RXD 2 on the LOLIN, if you use a and ESP8266 be aware that TX/RX is shared for Firmware upload. Using anything else for UART goes into software UART and no clue if that works… just get a bigger ESP32 for 4 bucks
Enjoy!