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labs/004_button_pullup_pulldown/measurements.md

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+# Measurements
+
+## Expected Measurements
+
+| State | Expected GPIO Voltage |
+| --- | --- |
+| Idle | TBD by pull-up/pull-down choice |
+| Pressed | Opposite of idle |
+
+## Actual Measurements
+
+TODO: добавить реальные значения.
+
+| State | Actual GPIO Voltage |
+| --- | --- |
+| Idle | TBD |
+| Pressed | TBD |
+
+## Observations
+
+TODO: bounce, unstable readings, serial output.