diff --git a/KingArt.md b/KingArt.md new file mode 100644 index 00000000..70512e07 --- /dev/null +++ b/KingArt.md @@ -0,0 +1,123 @@ +# KingArt-N1 - Touch Light Light Switch + +This is a relatively cheap Premium glass fronted touch panel, looks clean and minimal when installed too. + +Table Of Contents: +* [Device Features](#Device-Features) +* * [Breakdown](#Breakdown) +* * [Capacitive Touch IC](#Capacitive-Touch-IC) +* [Re-Programming](#Re-Programming) +* * [Tools](#Tools) +* * [Setup](#Setup) +* * [Programming Mode](#Programming-Mode) +* [Reference](#Reference) + +*** + +# Device Features +* ESP8285 micro +* Blue status LED (micro controlled) +* Separate touch IC controlled switch status indicators (blue and red) +* Confirmed 10A/250VAC mains relay + +![front](http://www.logicmetaworks.com/robin/GIT/sonoff-tasmota/images/img-module.jpeg) +-- Image: The 1 Gang Touch Panel, featuring the glass front (protective plastic film still on) + +### Breakdown +Whats in the package... This looks like a reasonably simple setup. + +Removing the front glass panel you have access to the main control PCB. This holds the ESP8285 micro-controller and accompanying guff. I've worked through mapping most of the pins of interest - notes are in the images below. + +The control board runs off a 5V fed from the Power-Relay board at the read of the unit - a 3v3 reg is the control board for all the logic. +The back of the control board has the touch controller and the 8way header to the Power-Relay board. +There are only touch pads on the back of the control board as a means to interface with the microcontroller. **There is no SonOff type programming header arrangement.**, see [Re-Programming](#Re-Programming). + +* Control and Interface PCB +![front](http://www.logicmetaworks.com/robin/GIT/sonoff-tasmota/images/img-module-front1.jpeg) +![rear](http://www.logicmetaworks.com/robin/GIT/sonoff-tasmota/images/img-module-rear1.jpeg) +_Sorry for the horrible pics.. will replace_ + +* Some Application-Interesting Pin Allocations +![Some Pin Allocation](http://www.logicmetaworks.com/robin/GIT/sonoff-tasmota/images/img-pinalloc.jpeg) + + + +The Power-Relay board is reasonably simple as well. +This board, being a 1-gang switch, only has a single relay - but the PCB is set out for 3 (again, see images for trace and pin notes ). + +* Power-Relay PCB +![base front](http://www.logicmetaworks.com/robin/GIT/sonoff-tasmota/images/img-powerRelay-front.jpeg) +![base rear](http://www.logicmetaworks.com/robin/GIT/sonoff-tasmota/images/img-powerRelay-rear.jpeg) + + +### Capacitive Touch IC +This board uses a dedicated capacitive touch control IC. + +Something interesting, that this IC manages touch switching as well a red and blue touch status LEDs for each of the touch pads that it services as the buttons. +The IC illuminates a diffuser block over a 'button', indicating: +* Blue : when Idle - button state is 'OFF' +* Red+Blue : when Active - button state is 'ON' + +The TW8001 is also linked to a red error indicator led on the front of the Control Board - it is co-located above the EPS8285 microcontroller's Blue status indicator. + +This appears to be used by the Touch IC to indicate its own state information +* eg, if the touch is held for +30s the touch shows an error state (red LED) and resets - useful if you replace the front panel and it needs to recalibrate. + +With regard to interfacing with the microcontroller, this device seems function with GPIO-friendly pin state for the capacitive button state reporting. + +![front](http://www.logicmetaworks.com/robin/GIT/sonoff-tasmota/images/img-IC-TW8001-notes1.png) + +Here is the only information I have been able to find on this device at the time of this investigation : +[TechWave - TW8001](https://translate.googleusercontent.com/translate_c?depth=1&hl=en&prev=search&rurl=translate.google.com&sl=zh-CN&sp=nmt4&u=http://www.techwaveltd.com.cn/content/%3F43.html&xid=17259,15700021,15700124,15700186,15700190,15700201,15700237,15700240,15700248&usg=ALkJrhjd4Qk_rQGiJLNJdAEqSnQL1YG0mA). + +It does have much (or: any) in way of public datasheets. +If anyone finds a datasheet please link it here! + +*** + +# Re-Programming +This should run with vanilla sonoff-tasmota. + +## Tools +You shall need something in way of the following: (or whatever works for you, this is just my setup) +* A USB-TTL adapter (TTL, 3V3.. something also with a 3V3 source) +![base rear](http://www.logicmetaworks.com/robin/GIT/sonoff-tasmota/images/img-usbttl.jpeg) +* Some leads +* A soldering iron (solder, bits.. etc) - I'm going to assume you know how/what to do with this. + +## Setup +(This is my setup) +USB-TTL | Lead | Board + 3V3 Red 3v3 + TXD White RX + RXD Grey TX + GND Black GND + +NNB : **DO NOT USE or CONNECT THE 5V** ever.. + +![base rear](http://www.logicmetaworks.com/robin/GIT/sonoff-tasmota/images/img-programming.jpeg) + + +### Programming Mode +Before you can program the board you **have to** start the ESP8285 micro in Programming Mode. +This is important. + +Remember we soldered the blue lead to the board at (SW) - you will use this to force the micro to the required mode on startup. (you can only do this on startup) + +Entering Programming Mode: +* Remove power from the board +* Short the blue lead (SW) to ground (use a ground pad on the board or on your programmer) + ![base rear](http://www.logicmetaworks.com/robin/GIT/sonoff-tasmota/images/img-programming-gnd.jpg) +* NOW: Apply power. You can remove the short to ground after a second or two. + +#### So, Are we in Programming Mode? ... + +* **Test Failed** - try again +If the board has its factory firmware installed still it usually flashes the status LED on startup.. (ie: not in programming mode) + +* **Test Success** +If you have successfully put the micro into programming mode the ONLY the _blue status illumination of the touch pad_ will be ON. +-> Now you can access and upload to the device using your preferred tool (Atom IDE, ESPtool, Arduino.. etc) + +# Reference +https://github.com/EphemeralPersistence/Sonoff-Tasmota/wiki \ No newline at end of file