UK: + 44 7967 445 829 | EU: + 421 917 163 367
UK Office:
+ 44 7967 445 829
EU Office:
+ 421 917 163 367
UK: + 44 7967 445 829 | EU: + 421 917 163 367
UK Office:
+ 44 7967 445 829
EU Office:
+ 421 917 163 367
Send a PWM (pulse width modulation) signal from a drone to perform various functions via the HDMI connector on a Mapir Survey3 camera. Cables are available in lengths of 20 or 50cm and for single or dual camera operation. MAPIR – MAPPING THE INVISIBLE
Price range: €15.00 through €42.00
Send a PWM (pulse width modulation) signal from a drone to perform various functions via the HDMI connector on a Mapir Survey3 camera. Cables are available in lengths of 20 or 50cm and for single or dual camera operation.
The cameras are triggered by differing PWM signals:
Every time the Survey3 camera captures an image it sends out a strobe / flash pulse that can be logged by an external recorder (e.g. a vehicle computer such as a UAS/drone flight controller, or Raspberry Pi or an Arduino). The strobe pulse is a high (3V3) when active, otherwise the pin is low (ground). If you log the exposure pulse against time and location you can edit the image location data in post processing to be more accurate. This is known as PPK (Post Process Kinematics).
If the camera is connected to a computer using the USB/POWER/FPV port, when in transfer mode the camera’s SD memory card will then become mounted to the computer and you can access it as if the SD card was plugged into the memory card reader on your computer. This is very useful if using a companion computer on a drone as it is possible to extract the images from the camera and onto the computer’s memory. Then you can do anything you want, such as process the photos or store them onto an external memory stick or SSD to easily take the photos off your drone.
| Weight | N/A |
|---|---|
| Dimensions | N/A |
| Cable-option | Single Camera 20cm, Dual Camera 20cm, Single Camera 50cm, Dual Camera 50cm |
| Brand | |
| Industries |
| Cable Lengths | Single 20cm (STANDARD other options available) Dual 20cm (two camera version) Single 50cm (one camera version) Dual 50cm (two camera version) |
| HDMI Connection | HDMI Micro Connector |
| 3 Wire White | PWM Pulse Signal INPUT (PIN 2) |
| 3 Wire Red | Exposure Strobe Pulse Signal OUTPUT (PIN 15) |
| 3 Wire Black | Ground (PIN 4) |
| 2 Wire Red | +5V Power OUTPUT (PIN 19) |
| 2 Wire Black | Ground (PIN 13) |
MAPIR Survey3 cameras can be triggered by differing PWM (pulse width modulation) signals:
With Survey3 cameras you can send a 1500us pulse width to have the camera enter USB Media Transfer Mode. If the camera is connected to a computer using the USB/POWER/FPV port, when in Transfer Mode the camera’s SD memory card will then become mounted to the computer and you can access it as if the SD card was plugged into the memory card reader on your computer. This is very useful if using a companion computer on a drone as it is possible to extract the images from the camera and onto the computer’s memory. Then you can do anything you want, such as process the photos or store them onto an external memory stick or SSD to easily take the photos off your drone.
Every time the Survey3 camera captures an image it sends out a strobe / flash pulse that can be logged by an external recorder (e.g. a vehicle computer such as a UAS/drone flight controller, or Raspberry Pi or an Arduino). The strobe pulse is a high (3V3) when active, otherwise the pin is low (ground). If you log the exposure pulse against time and location you can edit the image location data in post processing to be more accurate. This is known as PPK (Post Process Kinematics).
The diagram below shows the HDMI pins that are connected and the required PWM pulse to send depending on the function you want to perform.
| Active HDMI Pins | Mapir Survey3 Camera | |
| PIN 2 White Wire | PWM Signal | Utility / HEAC+ |
| PIN 4 Black wire | Ground | TDMS Data 2 Shield |
| PIN 13 Black wire | Ground | TDMS Clock Shield |
| PIN 15 Red wire | Exposure Strobe Pulse Signal | CEC (Control) |
| PIN 19 Red wire | + 5 V Power Out | |
| PWM Signal Value | ||
| Level 0 1000 us | Do Nothing / Neutral | |
| Level 1 1500 us | Enter / Exit USB Transfer | |
| Level 2 2000 us | Photo Capture |
PWM Trigger and Exposure Strobe cable
You are welcome to proceed with this order but the goods will come from our EU office.
If you prefer to purchase directly from our UK registered business please e-mail sales@seesense.eu with your requirements.
You will then receive a personal direct service from our experienced UK team
