Urgent.News

What's breaking now, across thousands of outlets.

Tech

QueueFlow

This is a submission for the Hacktoberfest Weekend Challenge: Build for a Friend What I Built I built an IoT-enabled Smart Queue Management System for my friend Shiva , who often has to deal with long and unpredictable queues at service centers. The system connects a physical IoT setup with a digital queue platform. When a person is detected by an IR sensor , the ESP32 communicates with the user…

We haven't written up this one. Dev.to has the full story — the link below goes straight to it.

Read the original at dev.to →

More in Tech

The gap limit is a compatibility contract, not a scanner setting

An HD wallet scanner quits twenty unused addresses after the last one that received money. An address handed out past that window still belongs to your key, your own indexer will watch it happily, and…

  • Gap limit is a compatibility contract, not a scanner setting
  • Unused addresses after gap limit belong to keyholder
  • BIP44 standard sets gap limit at twenty unused addresses

The EDI 810, Decoded: What an Invoice Actually Looks Like on the Wire

Every EDI series I write eventually gets to the invoice, because the 810 is where integrations stop being an IT project and start being a money project.

  • The 810 invoice links to 850 PO and 856 ASN, forming order-to-cash sequence
  • IT1 loop contains line item details, prone to matching issues
  • TDS segment represents invoice total in implied-decimal cents, error-prone

More from Sunday 4 October →