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Ray mcp23s17: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero 9d8514a 1mo ago
{"orientation_deg": 270, "font_size_mm": 3.1803, "reading": {"source": "pin1_xy", "pin1_xy": [-4.65, 8.255], "dot": [-2.689, 7.889], "dot_agrees": true}, "legible_estimate": true, "natural_up": null, "overflow": false}