NT Camera: Difference between revisions
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== Gitup Git2 == | == Gitup Git2 == | ||
===General Remote Operation=== | |||
The GIT2 as the ability to receive a PWM signal via its Micro HDMI port from your receiver to control video recording and photo triggering. As to the specifics they can be found here but in general a 3 position switch will be used on your transmitter. The middle position will be setup up as 1500µs and will do nothing. Low position, < 1250µs, will start recording video when switched. High position, >1800µs, will take one photo when switched. | |||
* http://www.gitup.com/en/blog/22_Git2-Remote-Shutter-for-FPV.html | * http://www.gitup.com/en/blog/22_Git2-Remote-Shutter-for-FPV.html | ||
Revision as of 07:28, 20 July 2016
Since firmware version v2.04e, NT camera modules are supported.
The NT camera module allows to remote control a camera. It thus serves a similar purpose as the various RC camera remote control modules, such as CAMremote, CamCntrl, IR Remote Shutter Controller, and all the others. Instead of listening to a servo PWM signal however, it listens to the data on the NT bus. It is thus usually connected to the NT bus near the camera NT IMU module, which yields extremely slim wiring schemes (see here). The camera remote control is associated with the IR Camera Control function in the [Functions] tab.
In addition, the NT camera module also acts as a "PWM out" module. That is, it outputs an additional servo PWM signal, which is an exact mirror of the PWM output signal available on the STorM32 board (when set up accordingly). This PWM signal is associated with the Pwm Out Control function in the [Functions] tab.
Dedicated NT camera hardware has not yet emerged, but the NT camera function is integrated into the NT IMU firmware. This means that those NT IMU modules which expose extra pins can simultaneously be used also as NT camera modules. Specifically this are the "big" v1.x NT IMU module and the CC3D Atom based modules.
NT Camera Support by NT IMU Modules
In v2.05e, three NT camera related signals are available at the EXT port pins of NT IMU modules, namely:
- pin EXT-3: IR Camera standard servo PWM signal (with ca. 60 Hz frequency)
- pin EXT-2: IR Camera pulse, 50 ms off/on/off
- pin EXT-1: Pwm Out standard servo PWM signal (with ca. 60 Hz frequency)
The two "IR Camera" signals are determined by the settings related to the IR Camera Control function; see also Advanced Functions: IR Camera Remote Control. The "Pwm Out" signal is affected by the settings for the Pwm Out Control function, see Advanced Functions: Pwm Out. For hardware reasons the NT IMU modules cannot drive IR LEDs, and this remote control option is thus not available with them.
The IR Camera PWM signal could directly feed cameras, which can be triggered by such signals, such as the Gitup Git2 or Foxeer Legend 1, or could be connected to a standard RC camera remote control module, such as those mentioned in the introduction.
The IR Camera pulse signal can be used for all sorts of purposes. For instance, it could be connected to a semiconductor relais to drive an IR LED, or to shorten some pins on a USB remote.
The pin assignment on the v1.x NT IMU and the CC3D Atom modules is as follows:
Gitup Git2
General Remote Operation
The GIT2 as the ability to receive a PWM signal via its Micro HDMI port from your receiver to control video recording and photo triggering. As to the specifics they can be found here but in general a 3 position switch will be used on your transmitter. The middle position will be setup up as 1500µs and will do nothing. Low position, < 1250µs, will start recording video when switched. High position, >1800µs, will take one photo when switched.
- http://www.gitup.com/en/blog/22_Git2-Remote-Shutter-for-FPV.html
- http://www.rcgroups.com/forums/showpost.php?p=34538383&postcount=3443
Foxeer Legend 1
To be filled.
RunCam 2
To be filled.
CAMremote
To be filled.