I have recently purchased the KC868-AK ESP32 keyboard and I have a few questions:

1. Does it has already firmware? Or I need to flash it?
   
2. With the keyboard I got RS232 cable, however I haven't found what each color means (Yellow, Blue, Brown vs Rx,Tx,Ground)
   
3. Is it possible that when I click a button state will be sent via RS485 for example to RaspberryPI?
   

USE PCF8574 IIC EXTEND GPIO FOR ESP32 INPUT PORTS
Hello, 

I am very new working with Kincony 868 A8

I have downloaded the instructions from lesson 20 for installing input ports and copied them in e new sketch.
 
After uploading I see that all 8 Inports give "pressed key", continiously. Making contact between ground and 1 port (1 to 8) give no change. 
The serial monitor stays announcing all ports "pressed key".
 
Type : Kincony 868 A8 V1.5
Thanks
What is wrong?

Is it possible to add on a IR receiver to this board similar to what was on the A4? If not, what would you suggest to add in that functionality?

Hello,
A question, can i connect h32b or h16b with a screen? By rs485? And its done, like lets say i connected h32b with lights and controlling them from mobile app but i also want to control them from a screen, can i do that? And if yes please explain to me how

Hello,
I have a question about HxB series, about the inputs , like H32B has 6 inputs, what can i do with them? Lets say pir sensor connected on input 1 sowhat does it do? And how to program it? Liek can i make input 1(pir sensor) control output relay 1-2-3-4 to be ON? If yes please explain how by schematic if possible please , or the inputs are only for information? Also if yes please explain how! Thanks

here is Tuya licence for "KCS" firmware , it can let your KC868-A series board remote control by internet.

1:telll us your email, we will send the licence to your email

2:tell us your area(choose from :China/Westen US/Eastern US/Central Europe/Western Europe/India)

IMPORTANT: check for your tuya account, which REGION you have registered.

Check in your tuya or smart life mobile phone app: Me -- Settings -- Account and Security -- Region

according to the "Region" visit here (https://developer.tuya.com/en/docs/iot/o...i0ku9l07qb) to check your server location.

           

if you really don't know how to check, just send us your tuya or smart life app account name, we will check for you.


3:tell us you model(choose from Kincony A4/A6/A8/A8S/A16/A32/A64/A128/E16S/AI/AK)

4: The license has no time limit, and the tuya platform provides corresponding services and guarantees

5:Once sold, it cannot be returned or refund

6:One licence only for one product


Tuya internet cloud server locate in 6 positon in the world:
Location-A: China
Location-B: Western US
Location-C: Eastern US
Location-D: Central Europe
Location-E: Western Europe
Location-F: India

please tell us which server location your app account used. such as if your account is "Western Europe" ,tell us "Location-E: Western Europe".

if you want to order, please contact with us, you can pay by PayPal or Bank account. Every  Tuya licence for one board, 10usd/pc, no time limit.

Paypal account: hificat@163.com
after you paid 10usd, please send email to web@kincony.com add these information:
your paypal paid number and screen photo, board model, server-location and your email. such as:
KC868-A4 ,   Location-D: Central Europe   receive licence email: xxx@xxx.xx

or you can order tuya license from our online store: https://shop.kincony.com/products/tuya-l...duct-model

here is demo config file for KC868-A32 , integrate to home assistant by MQTT using "KCS" firmware.
   

  A32-mqtt-home-assistant.txt (Size: 23.7 KB / Downloads: 1071)

Here is "KCS" firmware for KinCony KC868-A series (ESP32) board.
How to download and use, online guide: https://www.kincony.com/kcs-firmware-esp32-board.html
v1.0.15 improment:
fixed bugs with input port and MQTT state format.

  KC868_A4_V1.0.15.zip (Size: 736.46 KB / Downloads: 950)
  KC868_A6_V1.0.15.zip (Size: 743.63 KB / Downloads: 922)
  KC868_A8_V1.0.15.zip (Size: 747.45 KB / Downloads: 847)
  KC868_A8S_V1.0.15.zip (Size: 754.7 KB / Downloads: 936)
  KC868_A16_V1.0.15.zip (Size: 754.89 KB / Downloads: 908)
  KC868_A32_V1.0.15.zip (Size: 755 KB / Downloads: 878)
  KC868_A64_V1.0.15.zip (Size: 754.94 KB / Downloads: 909)
  KC868_A128_V1.0.15.zip (Size: 755.02 KB / Downloads: 790)
  KC868_AI_V1.0.15.zip (Size: 749.38 KB / Downloads: 749)
  KC868_AK_V1.0.15.zip (Size: 737.36 KB / Downloads: 906)
  KC868_E16S_V1.0.15.zip (Size: 754.9 KB / Downloads: 871)

Hello,
I have a small question about colb temperature input, what kind of sensor i must use since it has 3 terminals? So i cant use temperature sensor with 2 wires? Or how?

I have just received a brand new KC868-A4 board, and I have found a trouble when trying to upload any firmware, not only with Arduino IDE, but also with Espressif tool. It is a rather well known issue (several posts in internet) , common to many ESP32 modules, that manifests with a failed entry in flash mode, with eternal looping"Waiting for packet header...".  One brut force solution, that worked well by my board is to maintain depressed the boot/flash button -S2-during whole upload process. The other, following Internet posts, is to put a supplementary Cap 1uF at EN pin3 of esp32 module. That worked well also in my case, this capacitor coming in parallel with the already equipped C4 (1uF) of the auto download circuit on my kc868-A4.
Does it mean that my board came faulty from factory, or is the design of the auto download circuit marginal ? I would appreciate Kincony's sincere report and recommendation for this issue.