Comments on: Hackaday Podcast Episode 372: PopTubers, Shifty Semiconductors, and Shelving Shelf Labels https://hackaday.com/2026/06/05/hackaday-podcast-episode-372-poptubers-shifty-semiconductors-and-shelving-shelf-labels/ Fresh hacks every day Thu, 11 Jun 2026 10:33:55 +0000 hourly 1 https://wordpress.org/?v=7.0 By: Someone https://hackaday.com/2026/06/05/hackaday-podcast-episode-372-poptubers-shifty-semiconductors-and-shelving-shelf-labels/#comment-8307673 Tue, 09 Jun 2026 21:24:03 +0000 https://hackaday.com/?p=1116354&preview=true&preview_id=1116354#comment-8307673 Electronic shelf labels was a thing at ICA, one of Sweden’s grocery store chains, at least the one where I lived, in the 90’s, maybe into the 00’s. There was no e-ink of course, they were 7-segment LCD, and if I remember correctly they had one big segment covering a red background, that would flash slowly to indicate lowered price. There were dome-shaped things in the ceiling with rows of IR LED:s to update them. I don’t know why they stopped using them, but they switched to paper and haven’t gone back to electronic yet.

]]> By: Jonathan https://hackaday.com/2026/06/05/hackaday-podcast-episode-372-poptubers-shifty-semiconductors-and-shelving-shelf-labels/#comment-8306330 Fri, 05 Jun 2026 21:48:24 +0000 https://hackaday.com/?p=1116354&preview=true&preview_id=1116354#comment-8306330 In reply to Marc.

We had that problem with our bassist humming along with the music. The quick and simple solution was to turn his mike off :)

]]> By: Marc https://hackaday.com/2026/06/05/hackaday-podcast-episode-372-poptubers-shifty-semiconductors-and-shelving-shelf-labels/#comment-8306259 Fri, 05 Jun 2026 17:48:41 +0000 https://hackaday.com/?p=1116354&preview=true&preview_id=1116354#comment-8306259 What’s with the 120 Hz hum that fades in and out of the whole episode?

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