Summary When working with WiFi connections on devices like the ESP32, using the Arduino-IDE, a common question arises regarding the most efficient way to print data to the client. The options in question are: using multiple client.print() statements with a mix of strings and floats, or concatenating all the data into a single string before … Read more
Why two modes for tininess in IEEE754 Floating-point standard? Summary IEEE 754 defines two tininess detection modes (before rounding and after rounding) for determining underflow during floating-point operations. While the functional difference occurs in an extremely narrow numerical range (~2⁻¹⁵⁰ for single-precision), these modes offer flexibility to hardware designers in balancing precision requirements against implementation … Read more
Summary This article addresses a common issue in Power Automate where users need to group an array by one column and concatenate text in another column. The problem arises when working with arrays of objects and the requirement is to aggregate data based on a specific key. Root Cause The root cause of this issue … Read more
Summary The “column must appear in the GROUP BY clause” error occurs when using Laravel Livewire PowerGrid to display aggregated data by month from a PostgreSQL database. This error is caused by the fact that the id column is not included in the GROUP BY clause, but is used in the ORDER BY clause. The … Read more
Summary The Micropython code example for Bluetooth Low Energy (BLE) communication between a central and peripheral device using ble_simple_central.py and ble_simple_peripheral.py is not working as expected. The peripheral device is able to print received data correctly, but the central device is only printing <memoryview> instead of the actual data. Root Cause The root cause of … Read more
# Postmort hospitaleem: Stale UI Data in WPF MVVM Due to Unhandled Database Changes ## Summary A WPF MVVM application failed to reflect external database changes in UI controls (`DataGrid`, `TextBox`, etc.) because it lacked a mechanism to detect/apply live updates. This led users to act on **stale data**. ## Root Cause The core failure … Read more
Summary The issue arises when compiling Yocto recipes, where the use of -Wl,-rpath=dir in a Makefile causes a “contains bad RPATH” error. This error occurs because the RPATH is set to a path that is not valid in the target system. Root Cause The root cause of this issue is the use of absolute paths … Read more
Summary A client reported an account-level block preventing the creation of an APS Developer Hub within the Autodesk ecosystem. Despite the account owner holding Primary Admin and Billing permissions, the UI exposed only “ACC | BIM 360” hubs. The immediate cause was a missing entitlement flag for the Autodesk Platform Services (APS) subscription on the … Read more
Summary The issue at hand is changing the color of a calculation result based on a threshold in a JavaScript application. The current implementation does not correctly update the color of the result. Key concepts involved include DOM manipulation, JavaScript conditional statements, and HTML element styling. Root Cause The root cause of the issue lies … Read more
Outage Analysis: Misconfiguration Causes Approved Plot Listings Failure Summary A config drift in our geolocation service disrupted listings for “approved residential plots near Film City,” causing 404 errors on property detail pages for 4 hours. Users searching for government-approved land titles encountered broken links during peak traffic. Root Cause A schema change rollout triggered the … Read more