Digital Wireless WiFi Smart Programmable Thermostat

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Westcott
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Digital Wireless WiFi Smart Programmable Thermostat

#1 Post by Westcott » 31 Dec 2019, 18:13

Hi all,
These generic wall thermostats seem to be widely available, such as Ebay.
I've just got one to try out.
There's an ESP-12 with just TX, RX, GPIO15, EN, VCC, GND connected.
A PIC16F1947 microprocessor to drive the LCD screen.
5 touch-sensitive areas on the screen.
Holes for a 5 pin header: RESET, VCC, GND, SDA, SCK.
And a temperature sensor.

I'm guessing that the ESP12 doesn't do much more than send/receive Wifi app commands.
It powers up by connecting 3V3 to the header holes.

Has anyone else tried these?
Domoticz, Sonoff, ESP32

Flying Domotic
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Re: Digital Wireless WiFi Smart Programmable Thermostat

#2 Post by Flying Domotic » 03 Jan 2020, 00:40

Any pointer to help us?

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Westcott
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Re: Digital Wireless WiFi Smart Programmable Thermostat

#3 Post by Westcott » 03 Jan 2020, 01:16

Hi, Flying Domotic,
Nothing to report yet regards controlling it, but it seems this is a Tuya-compliant device that can the controlled from one of the Tuya apps.
I'm now looking at using one of the Python libraries to control it.
Domoticz, Sonoff, ESP32

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Re: Digital Wireless WiFi Smart Programmable Thermostat

#4 Post by Flying Domotic » 03 Jan 2020, 11:11

I mean: if you give us a pointer (or at least the brand) to the device you're trying to work with, someone can tell you if he/she already tested it.
As of now, we only know that you've found a Wifi Smart Thermostat on eBay, where there's lot of them ;-)

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Westcott
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Re: Digital Wireless WiFi Smart Programmable Thermostat

#5 Post by Westcott » 03 Jan 2020, 12:04

Ah!
It's unbranded, but works correctly with the blue SmartLife app.
Perhaps they are all Tuya standard, but try to get you to use their own app instead?
Mine wants you to use "Smart RM"
Domoticz, Sonoff, ESP32

Wiki
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Re: Digital Wireless WiFi Smart Programmable Thermostat

#6 Post by Wiki » 03 Jan 2020, 18:21

Could you post a link to the device?

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pi@raspberrypi:~ $ man woman
Kein Handbucheintrag für woman vorhanden
pi@raspberrypi:~ $

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Westcott
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Re: Digital Wireless WiFi Smart Programmable Thermostat

#7 Post by Westcott » 03 Jan 2020, 20:40

https://www.ebay.co.uk/itm/Digital-Wire ... 2749.l2649

Without knowing the comms protocol between the ESP and the PIC I don't think it will be possible to replace the ESP's firmware.
Plan B is to use a Python library, now that I've managed to get the device's 'localKey'
Domoticz, Sonoff, ESP32

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Re: Digital Wireless WiFi Smart Programmable Thermostat

#8 Post by grovkillen » 03 Jan 2020, 21:40

Why don't just contact the manufacturer about the wish of having ESP Easy working with their hardware. We only need to know the communication and we'd be able to add it as a plugin. You'd be surprised over how well willingly many companies are.
ESP Easy Flasher [flash tool and wifi setup at flash time]
ESP Easy Webdumper [easy screendumping of your units]
ESP Easy Netscan [find units]
Official shop: https://firstbyte.shop/
Sponsor ESP Easy, we need you :idea: :idea: :idea:

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