Previously used module based on Quectel L86 had a few weakness. It had seen only up to 9 satellites and few persons had a situation of loosing position during flight, so at the end of the year I started new project choosing uBlox SAM-M8Q receiver with integrated antenna.
New module has the same dimensions and electrical connections as previous modules. In the office conditions it see up to 20 satellites from GPS and GLONASS constellations. Image below show results of it's work. As previous modules has possibility to add HMC5883 magnetometer, but it is not supported by our projects, so by default is not assembled on board. It has LED signalizing it's state. After power on it light, after getting 3D-FIX it start blinking in 1 sec period.
Click on image to enlarge
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One of the basic trouble for electronic supplier is obsolete component. For a long time was hart do buy super-capacitor for data backup during few minutes power off pauses. Just now without announcement dried source of GNSS receivers. After making market research I choose receivers based on the same chipset, similar antenna so expect similar parameters of work. Just manufactured first series of this module.
Like on previous module this one also can carry magnetometer (not supported by OSD+AP but sometimes it is required for another application). also was predicted use of super-capacitors in another enclosure, so this time lack of capacitors will not surprise us.:-)
New are 2 LEDs. One is for indicating power on, another indicating GPS FIX. Dimension and holes are the same as in old one. As before the module id offered in transparent heat shrink foil, but possible is to put it into Z-47 enclosure.
The FPV System family has grown about one more sensor, the airspeed sensor. It is based on very expensive but best in class Swiss made digital chip MS4525D5AI001D. On board has power supply allowing to work with voltages bigger and smaller then 5V (3,5-10V) because it is powered from servo bus and everything can happen there.
I put it in shop as a airspeed kit together with Pitot probe. Also probe can be ordered separately.
By default sensor has 25cm long wire with yellow socket (I2C bus) to OSD (not to AP!). If you will need another wire length to your plane please let me know in comment to order. Pitot probe has 75cm silicon hose. It should be cute in half to connect "static" and "total" pressure ports. Ports are described on sensor's board, so it should be easy to connect. Wrong connection will give you negative speed. I don't know how Zbig did it, but he can calculate square root from negative number!
Good idea is to cover the pitot probe tip (cover both total and static holes)) against wind during power on calibration.
Unfortunately sensor measure speed only in one direction. It doesn't work on flight in reverse or side direction.
After long beta tests we publish set of firmware for components of System FPV. This version include many small enhancements requested by users and changes worked out during operation.
The new feature are possibility to use diversity for 2 independent RC receivers with CPPM or S-Bus output.This version also has new method of calibration current sensor allowing for minimize measurement errors.
Detailed description of all changes in 2.60 version can be found in document below link.
Article about diversity if FPV System
Article about current sensor calibration
Files with new firmware can be downloaded from section FPV System -> Download
The summer vacation is period when many peoples has more free time to flight. In last weeks received many videos from you and discovered that previous way of presentation was broken so just refreshed video gallery for FPV System.
If you have interesting video and want to share it to other users please contact with me.
Link to Video gallery