I have a problem. I have KC868-H32B Pro, KC868-AK ESP32 Programmable Keyboard, KC868-HA V2. How to connect them together? In Home Assistant, KC868-H32B Pro works with MQTT normally, but I can't connect KC868-HA V2 additionally.

i have the KC868-A16 REV:1.6 new and try to connect ethernet port and no open or no can see the lights, and connect to Router or my laptop, none show the ethernet port connect.
download the firmware "KC868-A16_Web_Server_Eth.ino.nodemcu-32s-202209151019.bin" install whit a ESP32 Download Tool, reboot and not see any change its the same

Attached Files

Thumbnail(s)
           

I would like to control groups of outputs quickly. E.g. set output1, output2, output3,... output15 to on, rest to off.
I'm mainly interested in wired ethernet connection (I expect it to give better results than WiFi).

I've expected the string format of TCP client/ TCP server would be best because the commands are quite compact. However, those protocols are not stable for me and are causing frequent disconnections.
Are there some protocol constraints like, wait until reply was received or something like that? How does the board recognize the end of the command anyways (there are no specifications about command delimiters, so packet fragmentation can cause issues here)?

Then I've tried MQTT but setting e.g. the mentioned 15 outputs takes non-trivial time (I would estimate ~500ms?). 
The MQTT command I've used is this one 

I have purchased the A8S v2. I have the USB cable and the device seems to be connected to port 3. I have connected the ethernet cable to that port on the device. I have downloaded the Flash_download_tool_3.9.2 and believe that I have updated the firmware with the KCS_KC868_A8S_v2.1.0.bin file. I now am trying to use the "SCAN DEVICE LIST" to find the device. I cannot update the static IP yet when I click the StartMonitorPort it says "The selected-ip maybe an invalid one, pls set the static ip first!" How can I do this?

Attached Files

Image(s)
   

How can I perform a full factory reset on this device? I have set a password but lost it :-(

I just purchased a new KC868-H32B but there is no QR code on the product itself?
What to do now?

what to KC868

Hi, does anybody know, how to use RS485 or serial connection with Tasmota firmware. There are no menus to configure parameters within KC868-A6 tasmota. bin

Saudações,

Sou Marlon Paco, designer de projetos, e você pode entrar em contato comigo pelo telefone +5543991083174. Atualmente estou trabalhando em um projeto GSM focado em profundidade de campo. O projeto visa implementar habilidades de medição em locais remotos, utilizando tecnologia GSM.

O objetivo principal é aumentar a eficiência e a precisão da coleta de dados para diversas variações de campo. O projeto envolve uma integração de módulos GSM para facilitar a comunicação e transmissão de dados em tempo real, tornando-o uma solução confiável para monitoramento e controle remoto.

À medida que avançamos, o projeto incluirá a educação dos membros da equipe para garantir um processo de implementação tranquilo. Esta iniciativa está alinhada com o objetivo mais amplo de melhorar os processos de medição no campo através de soluções inovadoras em GSM.

Estou liberado com o impacto potencial deste projeto e ansioso por sua implementação bem-sucedida.

Atenciosamente,
Marlon Paco
+5543991083174

Hello,

I have an A8S card.
This card has an buzzer or beep at GPIO 2
I have a software that search for a valid wifi, using wifi events. After each disconnection it will try the next available wifi until it can get an ip. Sometimes there is no wifi at all and the system loop for ever.

The use of pin 2 seams to have a conflict with the wifi.
When the system loop the beep turn on, even I switch it to off.

Is that any means to switch off the beep ?
I can provide code if this is needed

Many thanks for your help.

Best regards
Thierry

Hello
Can i use the relay to signal contactor to turn on or off ?
Also can the relays work as a dry contact ?
How long wire can i use for tempreature sensor and for water level sensor ? Can it be 30 meters long ?
Thank you