Becky Stern's casino gadget starts with an Uno teardown
With no new uploads this week, her archive offers toy engineering, phone-controlled cards and a tour of electronics factories.
Why this story? The channel's weekly summary: what went up this week, what is drawing views now, and where the channel stands among similar channels.
I Built a Card-Launching Purse to Distract Mark Rober
Next story: Becky Stern's card-launching purse has a casino assignment
Video summary
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- 0:55Stern dismantles an Uno Attack machine to examine its card-launching mechanism.
- 2:40A microcontroller, motor driver, button and power bank form the first custom-control prototype.
- 4:16A second version keeps a trimmed-down toy housing and uses the original switch circuit.
- 5:15The launcher goes inside a black woven purse for a lap test.
- 6:08A Wi-Fi portal lets a phone trigger the launcher.
- 7:23The staged casino distraction reaches its payoff.
An Uno Attack machine is a surprisingly useful starting point for an evening bag. Becky Stern opens up the toy, examines its motor and circuitry, and turns its card-launching mechanism into something she can carry to Mark Rober's CrunchLabs Casino Night.
There were no new uploads this week, but "I Built a Card-Launching Purse to Distract Mark Rober" remains the busiest of her current momentum videos. Nearly two months after publication, it has passed 63,000 views. Beyond the party premise is a proper maker's puzzle: the original board won't accept her code, the housing needs cutting down, and ordinary playing cards are too big for the mechanism. An ESP32 microcontroller adds phone-triggered launches over Wi-Fi.
Stern also pauses over a familiar design trade-off: a sturdy toy can be awkward to take apart and recycle. That interest in how objects are made carries into "Inside China's Electronics Factories | Made In Shenzhen", another older upload drawing viewers. It follows small-batch electronics assembly at Seeed Studio, then circuit-board fabrication in Zhuhai.
The channel added roughly 29,000 views over the week while subscribers stayed unchanged. Daily viewing is currently above its usual level. Among nearby-sized DIY channels, Heart and Home Crew had a much busier week; Stern's weekly viewing was closer to John Bilenki's and doubleboost's, with her existing projects supplying all the activity.
Published on Trari
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💡 Test your knowledge
Which toy supplies the mechanism for Becky Stern's card-launching purse?
Stern takes apart an Uno Attack machine and adapts its card launcher to fit inside the purse.




