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€13,432 pledged of €25,000 goal
backers
€13,432 pledged of €25,000 goal
backers

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    1. Missing avatar

      Sam Kr. on March 2

      Cheers :)

    2. Sebastian Smeenk Collaborator on February 28

      Hi Sam,

      Thanks for your inquiry, to answer your question. We've tested the GPS module in alle of our own cars and it seems perfectly fine when it's placed under the windshield however if it's fully surrounded by metal it'll not work. To follow-up on your comment about the installfest, we'll still be happy to have you over and meet in person!

    3. Missing avatar

      Sam Kr. on February 28

      Thanks for the info. I have a followup question. Since I'm interested in using this board in vehicle tracking (among other things), how well does the GPS work within metal enclosures like the body of a car?

      Otherwise I'll switch to backing the SFF version - unfortunately losing my installfest invite :(

      Good luck on getting funded, I hope you make it!

    4. Alexandre Vovan on February 27

      Thanks for writing about GPS power consumption. I must say that your product is ALMOST exactly what I asked Santa for Christmas. ;) Except, I would really have loved to see the u-blox ZOE-M8B chip for the lowest power consumption possible... My guess is that the chip was not available when you developed the product initially. Do you think you will eventually make a new product with that chip? Or do you provide custom PCB design?

      Also, I would pledge for the SFF-R410 but it is not available. :(

      Keep up the great work!

    5. SODAQ 5-time creator on February 24

      Hi Pieter,
      Yes the boards have a LiPo battery charging circuit, so they can be charged over USB and with a small solar panel.

      In deep sleep the board uses only around 20 uA. Of course the GPS is quite power hungry since a GPS fix may take anywhere between 1 and 120 seconds at around 40mA. We generally see that when we do a GPSfix every 5 minutes (and turn the GPS to deep sleep in between) the average fix time is around 3 seconds. So that means that the GPS will then average around 0.4mA. If however you use the accelerometer to wake the GPS only when there is motion you can bring down the power usage even further.

      Sending a NB-IoT message takes around 100 uWh (= ~ 30 uAh).

      So if you have a 2000mAh battery you could run it for weeks or months, depending on the number of times it is triggered by motion.

      Both T-Mobile and Vodafone will be issuing free trial sim cards. The early access program of T-Mobile is already live: https://iot.t-mobile.nl/early-access-program

      We expect Vodafone to follow soon.

    6. Missing avatar

      Pieter on February 23

      Great product! Some questions. A couple of questions:

      1. Does solar or USB power charges the LiPo battery? (does it have some kind of pass-through-charging, similar to AdaFruit PowerBoost 1000).

      2. Can you tell me a bit more how powerhungry the board is (e.g. wattage). E.g. how long can you use a 2.000 mAh LiPo to sent a GNSS position every 5 minute if there is some movement.

      3. Can you give more details about the NB-IoT offerings of Vodafone and T-Mobile of the SIM cards you provide?

    7. Missing avatar

      Peter B on February 23

      Why are there no installfests for SFF versions? As backer 36 and one of the first that buys a specific version I thought this would qualify as early bird.

      Best regards,
      Peter

    8. Missing avatar

      Bartlomiej Oszczak
      Superbacker
      on February 22

      I wił need extrrnal antenna connector because I wants to use your equipment with Spirent 6300M signal generators

    9. SODAQ 5-time creator on February 22

      Dear Sam,
      No, it is not possible to connect an external GPS antenna to the regular-sized board. We have chosen to use the GPS module with integrated antenna. On the SFF board we do use external antenna's.

    10. Missing avatar

      Sam Kr. on February 22

      Is it possible to connect an external GPS antenna to the regular-sized board?

    11. SODAQ 5-time creator on February 22

      Hi Bartlomiej,
      Thanks for backing us! We will share all materials on-line on our support pages:
      http://support.sodaq.com/sodaq-one/sara/
      It is is still a work in progress, but you will probably already find what you are looking for!

    12. Missing avatar

      Bartlomiej Oszczak
      Superbacker
      on February 22

      Hi I'm considering to buy a few devices for Institution can you send me PDF Manuals od your equipment? Thank you in advance!