Search found 109 matches

by smoker77
Fri Nov 17, 2017 7:58 pm
Forum: FAQ
Topic: Connection to PC104
Replies: 1
Views: 209

Re: Connection to PC104

Hello,
Our mobile beacon's UART has CMOS logic voltage levels (0.0 / 3.3V).
If your PC104 UART has also same levels, you can connect them directly.
If the PC104 UART has RS-232 levels (-5..-15V/+5..+15V) you should use RS-232 line driver IC, for example ADM3202.
by smoker77
Mon Nov 13, 2017 6:51 pm
Forum: FAQ
Topic: Distinguish data from multiple hedgehogs in the same map
Replies: 4
Views: 535

Re: Distinguish data from multiple hedgehogs in the same map

Hello,
Unfortunately in current version there is no way to determine which of hedgehogs is physically connected to the UART.
In the next version of software we will add the bit indicating this into the packet with coordinates. The software update will be published in few days.
by smoker77
Fri Nov 10, 2017 5:35 pm
Forum: FAQ
Topic: Distinguish data from multiple hedgehogs in the same map
Replies: 4
Views: 535

Re: Distinguish data from multiple hedgehogs in the same map

Yes, the packet with position contains address of the corresponding hedgehog. The packet with sensors data the hedgehog sends every time for its onboard sensors. In current version the hedgehog can not send sensors data from other hedgehogs in the system.
by smoker77
Thu Nov 02, 2017 1:14 pm
Forum: FAQ
Topic: Possible to know if Modem is D/C or Connected?
Replies: 2
Views: 719

Re: Possible to know if Modem is D/C or Connected?

Hello, When the hedge updates its position in Marvelmind system, it outputs the coordinates via UART/USB. There are a lot of reasons why hedge not updates position: modem disconnection, hedge or stationary beacons battery discharge, strong radio noise preventing communication. Do you need some speci...
by smoker77
Thu Nov 02, 2017 12:59 pm
Forum: FAQ
Topic: Map of an operating room in a plant can't be formed
Replies: 2
Views: 1301

Re: Map of an operating room in a plant can't be formed

Hello Steve, Unfortunately I'm not understand are there walls between sections with beacons 4-6-8 and 3-9-5-10-7. Our system uses ultrasound for distances measurement, so for correct positioning and also for building a map direct visibility between beacons is required. I think most of troubles in bu...
by smoker77
Thu Nov 02, 2017 12:13 pm
Forum: FAQ
Topic: Could I log the coordinates of the hedgehog using the Dashboard software?
Replies: 8
Views: 4341

Re: Could I log the coordinates of the hedgehog using the Dashboard software?

Hello,
In attachement is the description of all fields in the log file.
Sorry that older png attachemts are temporarily not available.
by smoker77
Thu Oct 12, 2017 12:30 pm
Forum: FAQ
Topic: pixhawk + ardurover + MM
Replies: 1
Views: 1541

Re: pixhawk + ardurover + MM

Hello, You can use the magnetic compass, but it is not reliable data source. Marvelmind robot (shown in demo videos) monitors its orientation by integrating the gyroscope. At first time it determines orientation by checking of track points when moving forward - the direction of the track corresponds...
by smoker77
Tue Oct 10, 2017 7:06 pm
Forum: FAQ
Topic: Read Position from Modem via Arduino Serial
Replies: 1
Views: 1499

Re: Read Position from Modem via Arduino Serial

Hello, Our Arduino example does not outputs anything to the serial port, it only listens for input. But I see the output "X= 0 Y= 0 H= 0" on your screenshots. Have you modified the example? Can you share the code? Our example sets the flag variable 'hedgehog_pos_updated' when the correct d...
by smoker77
Fri Oct 06, 2017 5:42 pm
Forum: FAQ
Topic: How to disable beacons/hedge from sleeping?
Replies: 1
Views: 1700

Re: How to disable beacons/hedge from sleeping?

You can disable sleeping of hedgehog or stationary beacon if they are powered via USB port.
Via dashboard, set the setting of the corresponding beacon 'Misc. settings/Sleep with external power' to the state 'not sleep by timeout'.
by smoker77
Wed Oct 04, 2017 12:24 pm
Forum: FAQ
Topic: Not seeing uart data from beacon or modem
Replies: 7
Views: 2435

Re: Not seeing uart data from beacon or modem

Yes, only UART2 is active now, please see wiring in this doc: https://www.marvelmind.com/pics/marvelmind_beacon_interfaces_v2017_09_13.pdf Something like heartbeat is available now too. The mobile beacon and modem every 10 sec sends packet with list of beacons in system (section 1.2 in protocol) eve...

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