: Pin 25 on an ESP32 often drives the horizontal movement. Y-Axis (Vertical) : Pin 26 drives the vertical movement.
: These circuits take the low-voltage signals from the DACs and amplify them to the levels (often 100V+) required to physically move the electron beam across the screen. Crt Clock Schematic
As the first midnight approached after the CRT had warmed into life, Mira sat on the floor, knees hugged to her chest, and watched the way the beam painted time. It did not rush like digital clocks. It curved with deliberation, the arcs stretched wide at noon and compressed tight at night. Sometimes the beam hesitated, as if pondering the next line. The neon lights flickered when the street outside sighed with late-night traffic. The vacuum tubes warmed the air, and the small room smelled faintly of ozone and molasses. : Pin 25 on an ESP32 often drives the horizontal movement