844083657c
The Pico Doom example loaded with the ILI9341 dangling on three critical pins: - VCC — unconnected (no 3V3 from the Pico) - GND — unconnected (no return path) - MISO — unconnected On real hardware the TFT wouldn't power on at all without VCC/GND. Inside the velxio simulator the missing power isn't strictly fatal (the simulator drives pixels off the SPI bus, not the rail), but it makes the schematic incorrect and misleading for users who copy it to a breadboard. MISO is electrically idle for write-only drivers, but Adafruit_ILI9341 with the 3-arg constructor binds to hardware SPI0, so MISO physically maps to GP16 — leaving it floating leaves the SPI bus topology incomplete. Wires added: Pico 3V3 → tft1.VCC (red) Pico GND.5 → tft1.GND (black) — closest GND pad to GP17/18/19 Pico GP16 → tft1.MISO (amber) — hardware SPI0 MISO Updated the data-integrity test (examples-pico-doom.test.ts) to include the three new pairs in the SPI/control/power expectation map. 10/10 tests pass. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> |
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| .. | ||
| examples-100-days.ts | ||
| examples-analog.ts | ||
| examples-circuits.ts | ||
| examples-digital.ts | ||
| examples-displays-epaper.ts | ||
| examples-picow-wifi.ts | ||
| examples.ts | ||