Yes, I designed the board but haven’t published the design because I wanted to make a few changes first. I will make the design public when it’s done.
Sounds good. Excited about it! Can’t wait!
What would be the difference between your board and “Adafruit Ultimate GPS FeatherWing”? Apart from the SMA connector and u-blox MAX-M8 GPS.
Is u-blox MAX-M8 GPS suppose to be better than “MTK3339 chipset” (from “Adafruit Ultimate GPS FeatherWing”)?
Maybe the question is too early to post.
I think the performance of the u-blox MAX-M8 GPS is better than the GlobalTop PA6H, and it has some nice features like geofencing and the ability to download the almanac and ephemeris information over cellular for a faster time to first fix.
My board not only has the MAX-M8, but it also has a LIS3DH accelerometer (like the Particle AssetTracker). It also has a real-time clock, and FRAM (ferroelectric RAM). And two Grove connectors for sensors. All of the devices connect by I2C leaving serial and SPI available for other uses.
Cool. Like it already.
Is the board size exactly the same as Adafruut Ultimate GPS? Including the 4 mounting holes locations?
IMHO and experience with boron and Asset tracker V2, it will be useless, tiresome and time consuming trying to make it work the boron with the asset tracker v2. To make it work just as a tracker, if your are using the classic adapter, you should cut pin D6 and, then in the ATv2 put a wire between D6 and GND. In this way, you never be able to shutdown the GPS, and that will cause more consumption, if that is a concern to you, you should consider it. Even if you try to put on a sleep the boron, you will never be able to wake up using the LIS3DH, as the boron is not 5v tolerant.
The Boron can be used with the following:
All the above use the Feather form factor and the tripler shield ties it all together.
There even exists a nice guide for this: https://blog.particle.io/learn-how-to-build-this-cellular-asset-tracker-with-a-particle-boron/ (Minus the LIS3DH, you’ll have to incorporate that yourself, but the library exists and it should be easy.)
To secure the boards to the tripler, consider using M4 standoffs and screws (@rickkas7 mentioned this elsewhere)
When will this product become available?
This is not a product. It is a custom board designed by @rickkas7 and he will be sharing the design files soon. You could then build your own.