On the IMX219 camera sensor module there are 6 pins that are taken from the sensor and present on the 30-pin DF37 connector but which are "not connected" on the existing Raspberry Pi IMX219 Camera module V2 MIPI camera base board. The IMX219 Probe board exposes all of the N/C pins as well as the I2C, GND and 1V8 connections while allowing the existing signals to be passed through as normal. The N/C pins can _maybe_ give access to advanced features such as the flash snyc signal, but be aware that it will be necessary to alter the standard I2C driver for the IMX219 in order to activate such functionality. To use this board, plug the IMX219 sensor module into the top side, and then plug the bottom side directly into the receptacle on the original base board. Alternatively you can use the IMX219 sensor extension cable to go from the IMX219 Probe board to the original Raspberry Pi V2 camera module base board. Header pins can optionally be soldered to the board to allow the signals to be probed more easily.