FAQ
TL;DR: DIY bead‑chain blind motor opens a large window in about 5 seconds, and “the original mechanism is not interfered with.” Budget ≈110 PLN, about 1 hour install, hold‑to‑run remote, and manual override. [Elektroda, aleks-1967, post #18240736]
Why it matters: For renters and DIYers who want quick, non‑invasive remote or Wi‑Fi control of roller blinds without rewiring.
Quick Facts
- Budget/time: ~110 PLN in parts and ~1 hour install; non‑invasive to the blind mechanism. [Elektroda, aleks-1967, post #18240736]
- Operation: Hold‑to‑run RF remote; release stops movement; manual chain remains usable. [Elektroda, aleks-1967, post #18240736]
- Motor options: 38 rpm available for slower travel; basic controller has no limit switches. [Elektroda, aleks-1967, post #18242247]
- Wi‑Fi upgrade: eWeLink app adds per‑direction timers with 0.5 s resolution; can handle two motors. [Elektroda, aleks-1967, post #18316147]
- Durability: Gearbox uses metal cogs. [Elektroda, aleks-1967, post #18242222]
How can I motorize a bead‑chain roller blind without modifying it?
Use a ready‑made chain‑drive motor with a hold‑to‑run RF remote. It opens a large window in about 5 seconds. The build leaves the original mechanism untouched and allows manual use by disconnecting the chain. Expect ~110 PLN cost and about one hour of work. [Elektroda, aleks-1967, post #18240736]
How does the handheld remote operate in this setup?
Button 1 closes while pressed; releasing it stops movement. Button 2 opens under the same hold‑to‑run logic. The remote supports several modes, but the author chose this safety‑friendly, press‑and‑hold behavior. [Elektroda, aleks-1967, post #18240736]
Which model numbers appear in the photos?
The controller label shows “KC323.” The string “CHW4632-370” was noted but could not be found again among listings. This helps when searching replacements after links expire. [Elektroda, Anonymous, post #18242162]
Are the gearbox gears metal or plastic?
They are metal. As the author confirmed, “The cogs inside are metal.” This improves durability under frequent starts and stops. [Elektroda, aleks-1967, post #18242222]
How loud is the drive?
The gearbox runs quietly, even at night. As reported by the builder, “The gear works quite quietly even at night.” Mounting to a solid surface further reduces vibration. [Elektroda, aleks-1967, post #18242193]
Does the basic controller have limit switches or auto‑stop?
No. Opening time is not adjustable on the basic RF unit, and there are no limit switches. It runs only while you press the button. “It is a simple mechanism.” [Elektroda, aleks-1967, post #18242247]
Is the default speed too fast, and how can I slow it down?
If you want slower travel, choose a motor specified at 38 rpm instead of the faster unit. This change lengthens travel time and widens timing margins for automation. [Elektroda, aleks-1967, post #18242247]
What RPM is shown in the example build?
The example photo shows a 92 rpm motor. That speed produced about a 5‑second full open on a large window in the build. [Elektroda, Anonymous, post #18243661]
Is this build suitable for full home automation and unattended runs?
Not in its basic RF form. “Since there are no timings and no limiters or other safety features then in this form it is not very suitable for automation.” Use a smarter controller if you need unattended operation. [Elektroda, Anonymous, post #18242252]
How do I add Wi‑Fi timer control?
Install a Wi‑Fi controller that works with eWeLink.
- Wire the controller and pair it with the eWeLink app.
- Assign each output to a motor channel.
- Program open/close durations with 0.5‑second resolution per direction.
This adds phone control and scheduled movement. [Elektroda, aleks-1967, post #18316147]
How accurate are the timers—can they replace limit switches?
The Wi‑Fi controller lets you program open and close durations with 0.5‑second resolution. The author notes that “the limiters are not needed” when you time full travel. Use this for full open/close runs, not position tracking. [Elektroda, aleks-1967, post #18316147]
Can one remote or phone control two blinds independently?
Yes. The updated controller runs two motors, each controlled separately from one remote or from your phone over Wi‑Fi via eWeLink. This supports independent channels. [Elektroda, aleks-1967, post #18316147]
What about partial positions and mid‑travel stops?
Timers cover full opening and closing. If you stop mid‑travel and want repeatable positions, you need position sensing. As stated, “position sensors are needed.” Consider encoders or end‑stop sensors for accurate scenes. [Elektroda, bhtom, post #18316283]
What happens during a power outage?
You can disconnect the bead chain from the motor and operate the blind manually. This non‑invasive design preserves full manual functionality during outages. [Elektroda, aleks-1967, post #18240736]
How do I return to a known position after stopping mid‑way?
You can drive the blind back to a reference end stop manually. As noted, “You can quietly close to the home position with one of the buttons.” Then resume timed operation. [Elektroda, aleks-1967, post #18316284]
.
.
