Hi! I am planning to use a KC868-A8 in a vehicle, power by battery. What is the input voltage tolerance of the board? Could it handle like, 10-15 volts, or do I have to add a regulator to make sure it gets exactly 12V?

/A A

Hello,
im a student and i  want to create an iot system for aquire some signale from process instrument in 4-20 ma to monitornig the state of device in an industrial plant.

I want to create a system cloud based to implement a system for predictive maintenance on my master degree.

If is possible i want to test on  KC868-A4 free sample.

Im wait for your answer, best regards.

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Hello, please could you list mfr. part numbers compatible screw-in terminal blocks replacement to replace the plug-in ones? 6x 1x9P + 2x 1x5P for digital inputs, 2x 1x9P for analog outputs 0-10VDC and 2x 1x9P + 2x 1x5P for AI and serial.

Is the schematic / PCB layout available for the latest -A8, rev 1.5? I'd like to add Power Over Ethenet to the product...

Hola, tengo la placa "kc869-e16s" y necesito convertir las 4 entradas analogias en entradas de 0-5 voltios, me pueden apoyar.
saludos

Hello,
I'm a student at BUT Brno in the Czech Republic at the Faculty of Electrical Engineering. I am interested in IOT. At work, where I go, I want to suggest that we start doing Smart Home on your system. We often do electrical installations, and also consulting projects. I mean, if we learn with your system and implementation in HomeAssistant(We have built a few homes on HomeAssistant) I think we could buy products from you more often. So I would like to design my own smaller smart switchboard at home to show the company that this system has potential. So I guess my situation corresponds to situation B, start a Project.
If you grant the request, I would be interested in the KC868-A4.
Thank you very much for reading.
Sincerely Lubos Chmelař

Sometimes, board restarting with this error.

Guru Meditation Error: Core  0 panic'ed (LoadProhibited). Exception was unhandled.
Core 0 register dump:
PC      : 0x4008b1e0  PS      : 0x00060033  A0      : 0x800899b2  A1      : 0x3ffbf840 
A2      : 0x00000000  A3      : 0x3ffc6b64  A4      : 0x9ffc6b64  A5      : 0x00000001 
A6      : 0x00060820  A7      : 0x00000000  A8      : 0x8008b0a9  A9      : 0x3ffbf810 
A10    : 0x20000001  A11    : 0x3ffbc308  A12    : 0x00000001  A13    : 0x00000001 
A14    : 0x00060021  A15    : 0x00000000  SAR    : 0x00000016  EXCCAUSE: 0x0000001c 
EXCVADDR: 0x9ffc6b64  LBEG    : 0x00000000  LEND    : 0x00000000  LCOUNT  : 0x00000000 
Core 0 was running in ISR context:
EPC1    : 0x4008b1e0  EPC2    : 0x00000000  EPC3    : 0x00000000  EPC4    : 0x00000000



ELF file SHA256: 0000000000000000

Backtrace: 0x4008b1e0:0x3ffbf840 0x400899af:0x3ffbf860 0x4008c049:0x3ffbf880 0x40086f9a:0x3ffbf890 0x401448c7:0x3ffbc210 0x40131667:0x3ffbc230 0x4008b071:0x3ffbc250 0x400898c2:0x683ffbc2

Rebooting...

How solve it ? Is it hardware problem ?

THX

I have designed a control system for a refit of my boat.

The break panel/control panel will be in the engine room, and would like to be able to turn things on and off at the helm, via a dedicated touchscreen.

There are 11 pumps, I would like to be able to see if they are turned on, for how long and if after a preset time, give out a warning.  

electrical layout

would love some feedback and/or corrections.  Trying to order equipment this week.

Hello everyone!

I would like to kinldy ask for some help with the KC868-A2. I am unable to communicate with the SIM800L module. I have tried to use the example code for KC868-A8S sms-relay and adapt it but it didn't work.

I have changed the Serial2 pins in "HardwareSerial.cpp" to RX2 34 and TX2 13.

Could you provide me with an Arduino source code for the KC868-A2 with the SIM800L module?

Thank you

Hi im very new to this and have been trying to find sample code to amend to do the following

Digital input 1 pulse count
 
Digital input 2 pulse count
 
Digital input 3 Reset Button 
 
If input 1 = input 2 + 100 pulses

Then switch com1 status to nc1