An access interface for accessing electrical nodes of an electronic circuit for programming, testing, and debugging the electronic circuit. The distributor includes an elongated liquid trough having first and second laterally spaced, longitudinally extending sidewalls and a longitudinally extending floor which extends between and interconnects the sidewalls. The card may include multiple swipe sensors to detect when to start and stop driving the conductive paths. Three or more points are used to determine a curvature of the result at a predetermined location. Further, an error detector is provided that is connected to receive data from the constellation manipulator.