During November 2025, this developer enhanced the esphome/esphome repository by implementing differential mode support for the MCP3204 ADC, enabling more accurate voltage measurements through differential input selection. The work involved updating C++ sensor logic and configuration handling to support the new feature, with Python scripting used for integration and testing. In parallel, they contributed comprehensive documentation updates to esphome/esphome-docs, clarifying configuration variables and usage for both MCP3204 and MCP3208 components. Their approach emphasized cross-repository alignment, ensuring that code changes and user-facing documentation were delivered cohesively to improve user experience and reduce future support requirements for embedded sensor integration.