Generally current transformers should have the ability to be shorted in order to perform maintenance. Disconnecting a current transformer while it is installed on a current carrying conductor can result in damage, although at residential current levels this is not as likely.

Often shorting terminal strips are used but on a whim I've decided to make my own shorting terminal block tailored for my N20.
Components are almost all on hand.
Waiting for a DIN rail mounted pcb holder to arrive.
Once that shows up I'll confirm measurements and send the circuit board design for fabrication.
   

Hi,
i try to use a kc868-ag with home assistant. I didn't find how to register rf comands using esphome. It's easier to register rf comand buttons with kcs firmware. I'm looking for yaml examples to integrate in home assistant using mqtt.
Someone can give some example for yaml setting in home assistant for receiving and sending rf and ir commands through mqtt?
Thank you for your help...

Hi.

I bought KC868-A2 board.

I am tryning to send mqtt message to the mqtt broker through LAN8720 with dhcp configuration.

Any example arduino code on this.

Many Thanks for this wonderfull board. Nice Work!!!

Hello,

I have 2 T16M.

I am building a Wiegand door lock controller with ESPHome firmware, and am proceeding well.

I am currently using my second T16M with a Wiegand S20 keypad via a 5v - 3v3 logic level shifter.


However when I was using the first T16M, I did not use the 5v - 3v3 logic level shifter.
After some time of development using ESPhome it stopped responding via USB.
I had assumed I damaged the T16M.

You have advised that "you can connect Wiegand D0 and D1 to T16M free GPIOs directly, not need logic convert.", so therefore my assumption was incorrect.

I have seen in another thread that you can reset the T16M using the DW button while power-on.

Using that method has not made the USB work.

What can I do to make the USB work again?

Thanks, Rob.

Hello,

In the pin definition for the T16M, it shows the Eprom on the I2c bus.

How can we use the Eprom in ESPHome, and what is the size of the storage?


Thanks, Rob

Hi,
Finally I've received the kc868-a16 unit and got it working. Or at least somewhat working. I've flashed the kcs_kc868_a16_v2.2.18 firmware and it seems to be working. The board boots up and I can connect to it through the browser but I can't control it.
In the monitor tab there is the output section and I can click on ALL ON or ALL OFF and the squares go green or gray but the board doesn't do anything. The led indicators don't turn on and checking with a multimeter there isn't anything opening or closing.
I've tried shorting the digital inputs but that doesn't do anything either.

Link for the problem: https://youtube.com/shorts/ekwEwoERshc

Am I missing something? Do I need to set up anything else? 

Thanks!

Hello,

I have a T16M (ESPHome), and I need to connect 4 Wiegand keypads (8 GPIO required).  There are 7 GPIO, and 2 RS485 available.

Are the RS485 connections just a UART, and can be used for a Wiegand D0/D1 ?

------

I have noticed in your videos on Wiegand that you use the UART rx/tx connections on the example boards.
Is that because they are 5v logic, and are required to connect the 5V D0/D1 from the Wiegand keypad?

I assume the ESP32 will be damaged if I connect the D0/D1 to the GPIO connections of an ESP32 based board like the T16M?

Thank you.

Rob

Hello,

My KC868-COLB is no longer visible on my network,

The UDP Blue LED and Server Yellow LED are flashing on and off together for approx 2 sec on, 2 sec off.

I have tried pressing and holding the Ethernet M button as described in the user guide but the LED's are not lighting up to switch modes. Nothing happens when i hold this button in.

Is there a way to do a reset on this board?

My tiny alarm seems to be transmitting a wifi signal (AP?)  "SmartLife-C886" how do i disable that?

Hello,
I started working over new home automation project and I bought Server 16 with raspberry pi & nodered. Board is working fine with rs485 sensors, but I'm planning to use relays to control electric circuits and I have two major difficulties :
1) by default I want to have circuits off (NC), I changed settings of all relays in nodered to invert switches, but when board starts it triggers all relays for a moment ON and after moment all goes to OFF. It means that all connected electric equipment will start for a less a second - this is very unwanted behaviour, how to avoid that?
2) I'm planning to use digital inputs to control relays with momentary buttons, but input seams to be connected with relays and input has to be shorted with GND all the time, how to change that, so relay will be toggled wen button is pushed for a moment?  I don't want to use bistable buttons, as relay will be connected with nodered and homeassistant in parallel and wall buttons will have different state than circuit 

Beet regards 
Podlak