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 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 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
Summary A critical production incident occurred where the astrology consultation platform generated inaccurate predictions due to misaligned astronomical reference data. This caused unreliable horoscope outputs for end users. Root Cause The core failure stemmed from: Ephemeris data discrepancies: The platform used outdated planetary position tables lacking delta-T corrections for Earth’s rotational variations. Improper coordinate conversions: … Read more
Summary The default behavior of AmCharts 5 is to move the chart when new data is pushed into the series, which can be annoying when viewing historical data. The goal is to disable auto chart move on new data push. Root Cause The root cause of this issue is the default behavior of AmCharts 5, … Read more
Summary A developer encountered unintended mesh movement when retargeting a crouching animation from Unreal’s Free Animations pack. Instead of playing in place, causing position drift. This postmortem breaks down why animations move geometry unexpectedly and how to force fixed-position playback Բ喦 ****clear_terminology Root Cause The core issue stems from improper handling of root motion during animation … Read more
Summary An animation sequence failed to trigger correctly during a balloon-popping simulation. Instead of displaying the gradual popping animation, the model abruptly disappeared without rendering intermediate states. This occurred because the transition to the hidden state skipped crucial animation frames. Root Cause The core issue arose from premature state transition: Immediate removal: The balloon object … Read more