Pins and Connectors of NT Modules
A potentially confusing variety of NT modules are around. Generally they can be distinguished into what could be called "generic OlliW" modules, modules by third parties which either are derived from the "OlliW" modules or are independent designs, and modules which are build by using hardware from other projects.
NT v2.x Modules
All NT v2.x modules have a 4 pin JST plug for the NT bus connector, with the pin assignments as shown below. They in addition offer a BOOT0 solder jumper, to allow for a first-time flashing. Some modules offer some further solder jumper for configuring them, some others expose also the SWD pins, and yet some others may provide access to additional extension pins.
NT v1.x Modules
All NT v1.x modules have a 4 pin JST plug for the NT bus connector, with the pin assignments as shown below. They in addition offer a BOOT0 solder jumper, to allow for a first-time flashing. Some modules offer some further solder jumper for configuring them, some others expose also the SWD pins, and yet some others may provide access to additional extension pins.
CC3D Atom NT Imu Module
On the CC3D Atom boards the Main Port plug is used as NT bus connector, with the pin assignments as shown below. Further information on the CC3D Atom can be found here.
Comment: To close the IMU ID selector, connect the indicated pin to GND.
ENSYS NT Imu Module
These modules are available from Ensys. For further information and the vendor's page please see Ensys NT Modules.
midimon's NT Imu Module
These modules are derived from the Mini NT IMU v1.x with MPU9250. For further information please see midimon's NT IMU Module.
