Taking over a Dead IoT Company

Post by tyingq » Wed, Jan 11, 2023, 10:21 PM UTC

spdustin wrote: post #210

tyingq wrote: post #36

Earlier quoted context omitted.

Assuming largish, multi-color matrixes, and/or chained ones, yes. A ~10Mhz+ pixel clock, double-buffering, or just the size of the pixel map would strain most of those. This sign is 32x128 pixels, with each pixel taking data for RGB (on/off), with the PWM rate controlling brightness for each of the three colors. Though there are examples of using something beefier/faster like an ESP32. There's also in this case, the…

The ESP32 can handle a 64x64 HUB75 display pretty handily. Several of them, even. There’s a solid library out there [0] that just pumps pixels right from memory via the ESP32’s built-in DMA engine. Adafruit_GFX is the supported library for drawing primitives/text/bitmaps/etc., so you can re-use a lot of code that’s out there. But let’s start with a simple, quick hit of dopamine: There’s a web-based installer [1] (it…

Post by Terretta » Fri, Jan 13, 2023, 10:53 AM UTC

JAlexoid wrote: post #201

ColdHeat wrote: post #6

Hello, author here. Happy to answer any questions! My apologies for the downtime, I wasn't expecting much traffic today since I submitted the post to HN yesterday but I've started scaling my server now!

Why would you call it a good idea? Even your calculations are way too optimistic. Giving it little thought, I can say that NYC would have at best 10k sales of this item. In total... including any knockoffs. The product may have scaled to be able to sell to London, Paris, Tokyo, Soul, Beijing, Shanghai, Hong Kong and Singapore. But this is the total addressable market for this item. Let's say you have 2 engineers in U…