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ATOM UAV MANUAL

 

Date: 2021-09-30 

Version: 0.8 

Page: 3 of 20

 

FLARM Technology Ltd 

Hinterbergstrasse 15 

CH-6330 Cham

 

Document Number: 

FTD-088

 

 

1

 

Introduction 

Atom UAV is a FLARM developed specifically for drones. Leveraging the Atom SoC 
platform,  it  is  a  miniature,  feature-packed  device  that  can  be  used  standalone 
(“hook-on”, retrofit) or integrated into own designs. 

Highlights: 

 

Atom System-on-Chip platform 

 

Full, worldwide  FLARM interoperability 

 

V2X communication payloads 

 

Cortex-M4F processing core 

 

Integrated Wi-Fi and Bluetooth module 

 

72-channel u-blox GNSS engine 

 

Webapp for configuration and diagnostics 

 

1090MHz receiver for ADS-B and rebroadcast (TIS-B/ADS-R) 

 

Sensor for pressure altitude 

 

Consolidated, unified traffic stream 

 

Direct broadcast remote ID, compliant with ASTM F3411-19, EC 2019/945, EC 
2020/1058 

 

Atom UAV is available in two variants: 

 

For embedded use with a board to board data connector 

 

For standalone use in an enclosure with a JST data connector and an integrated 
Wi-Fi antenna 

 

This documents describes the functionality of the device at the time of writing. As 
more  features  will  be  added  and  other  functionality  will  be  simplified,  the 
description  thereof  will  certainly  change.  Be  sure  to  check  for  updates  to  this 
manual as new firmware is released. 

 

 

Summary of Contents for ATOM UAV

Page 1: ...1 09 Initial version 0 2 2021 09 19 Hardware Rev 2 0 images web maintenance oem variant 0 3 2021 05 31 Added JSON protocol forced flight state and protocol configuration 0 4 2021 07 08 Added radio div...

Page 2: ...erfaces 7 2 1 MAVLink Interface 7 2 1 1 Integration with PX4 7 2 1 2 Using Navigation Solution from PX4 8 2 1 3 Compatible GCS Software 8 2 2 JSON 8 2 2 1 Examples of unsolicited JSON messages 9 2 2 2...

Page 3: ...channel u blox GNSS engine Webapp for configuration and diagnostics 1090MHz receiver for ADS B and rebroadcast TIS B ADS R Sensor for pressure altitude Consolidated unified traffic stream Direct broa...

Page 4: ...irtual serial JST GH 6 pin or TFM 8 pin B2B power UART Protocols JSON MAVLink GDL90 UI 4 status bicolour LED Power supply 5 28 VDC on JST GH 5 VDC on USB Power consumption 200 mW typical 1 1 2 Descrip...

Page 5: ...ST GH The GH connector from JST3 is used on the Atom UAV standalone variant over the DF 13 for its improved mechanical properties and ease of handling It exposes a 3 3 V UART and may be used to supply...

Page 6: ...sed i e TX of the flight controller must be connected to RX of the Atom UAV etc The JST GH receptacle is surface mounted to the board thus the mechanical stability is limited When pushing in the conne...

Page 7: ...T GH UART connector only if enabled in the HUB firmware The messages HEARTBEAT and ADSB_VEHICLE are published to output traffic information Baud rate is set to 115200 8N1 The system ID sysid is adapte...

Page 8: ...time synchronization Because the Flarm RF protocol is very time sensitive the provided mavlink time needs to be accurate To reduce jitter a Mavlink mode like OSD that emits SYSTEM_TIME and GPS_RAW_IN...

Page 9: ...low to be considered flying for example in stationary flight it is possible to issue a command on the JST port to force the flight state The syntax is as following bridge flarm pflac s ffs forced_fli...

Page 10: ...or instead of an PCB antenna a WiFi antenna needs to be connected If not the range might be insufficient for proper operation of the Web Interface Open the address http 10 10 10 10 in a browser of the...

Page 11: ...e an external source provided through MAVlink Otherwise the internal GNSS receiver is used An active GNSS antenna needs to be connected to the device for proper operation of the device If the device h...

Page 12: ...EXG bin In the output field a response should be listed The files can be listed with file ls but not all files may be shown if there are to many 3 4 Installing the EXG Licence To install the EXG licen...

Page 13: ...Configuration FLARM Radio Diversity To use the device standalone that is not as part of a primary secondary setup choose the No diversity option This is the default Both the primary and secondary devi...

Page 14: ...ATOM UAV MANUAL Date 2021 09 30 Version 0 8 Page 14 of 20 FLARM Technology Ltd Hinterbergstrasse 15 CH 6330 Cham Document Number FTD 088 How to find the serial number of the primary device...

Page 15: ...ATOM UAV MANUAL Date 2021 09 30 Version 0 8 Page 15 of 20 FLARM Technology Ltd Hinterbergstrasse 15 CH 6330 Cham Document Number FTD 088 Setting the radio diversity role here of the secondary device...

Page 16: ...ed board that can be integrated in a more complex system The Atom UAV standalone is shipped with the following items Atom UAV device 2x FLARM ADSB antenna 1x GNSS antenna 1x JST cable ready to use in...

Page 17: ...e in the Web Interface With internal GNSS source all received traffic output is generated as ADSB_VEHICLE message With MAVlink GNSS source selected internal communication of GNSS might not be in sync...

Page 18: ...llation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications Ho...

Page 19: ...st conforme aux CNR d Innovation Sciences et D veloppement conomique Canada applicables aux appareils radio exempts de licence L exploitation est autoris e aux deux conditions suivantes 1 L appareil n...

Page 20: ...acturer Flarm Technology AG Hinterbergstrasse 15 6330 Cham Zug Switzerland info flarm com www flarm com Modular Components Used NAME Wi Fi Bluetooth Internet of Things Module MODEL ESP32 WROOM 32E FCC...

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