https://github.com/mannkind/dd2702h-interface

A quick and dirty, hacky interface to the dd2702h remote for outdoor shades
https://github.com/mannkind/dd2702h-interface

Last synced: 4 months ago
JSON representation

A quick and dirty, hacky interface to the dd2702h remote for outdoor shades

• Host: GitHub
• URL: https://github.com/mannkind/dd2702h-interface
• Owner: mannkind
• License: mit
• Created: 2023-07-25T01:59:32.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2023-08-05T02:04:23.000Z (almost 3 years ago)
• Last Synced: 2025-09-09T00:44:05.119Z (11 months ago)
• Language: OpenSCAD
• Size: 698 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

          
# Home Automation - DD2702H

A **quick and dirty** interface to the DD2702H remote.

Seriously. This is hacky hack hacky. But it's all hidden in a nice little case, so I don't really care.  

It requires removing the DD2702H from the stock case, soldering some wires to it, and hooking up an esp32.

## Build of Materials

* 1 - DD2702H remote

* 1 - Custom PCB

* 1 - Nekmit Dual Port Ultra Thin Flat USB Wall Charger

* 1 - Wemos D1 Mini (esp32)

* 2 - Strips of female connectors for Wemos D1 Mini

* 3 - 1k through-hole resistors

* 3 - 2N3904 PNP transistors

* 1 - DD2702H Remote

* 11 - Male pins; angled preferred

* Some wires to connect them

## Program

The [example yaml](program/dd2702h.yaml) for ESPHome contains all you should need to get started. 

ESPHome is awesome, and I'm lazy.

## PCB

I ordered the PCB from OSHPark.com by uploading the KiCAD files.

Turn-around time was a week, and the boards from OSHPark are high quality.

![rendered, populated pcb](images/pcb-rendered.jpg)

## Case 

The case I've printed and am using is provided in the `case` folder as an `.stl` file. 

There's also the openscad source, if you're interested. It requires [YAPP_Box](https://github.com/mrWheel/YAPP_Box) to work.

![rendered case](images/case.jpg)

**Assembly Guide**

* Remove remote PCB from stock enclosure

* Solder wires to the up/stop/down buttons; optionally the channel buttons (I skipped the channel buttons)

* Solder ground wire to remote button battery holder

* Solder female pins into Wemos D1 Mini spot

* Solder resistors

* Solder transistors matching silkscreen

* Solder male header pins

* Solder wires to remote buttons as desired - one end should be a female connector

* Use electrical tape to hold the battery in position

* Use electrical tape to protect the bottom of the custom PCB

* Insert the remote PCB into the case; it should fit nicely on the pegs

* Place a dab of hotglue in the center; place the custom PCB on top of it

* Connect a USB cable to the Nekmit; hot glue that sucker down

* Put the lid on the case

* Plug into wall

![image of the case + pcb](images/case-open.jpg)

![image of the case](images/case-closed.jpg)