[Ovmsdev] OVMS v3 Pre-Launch Announcement

Mark Webb-Johnson mark at webb-johnson.net
Wed Mar 7 13:49:46 HKT 2018

I got a number of eMails regarding 4G support, and sent this as a reply:

Not wanting to fall into the same trap as OVMS v2, where the entire board is designed around the modem module, we designed the OVMS v3 system to have optional pluggable modem boards. We want to be able to exchange modem board, for newer technology, without having to change the entire system. We also designed the modem circuit board itself to support different modem modules, and our current modem board design supports both SIM5360 (3G) and SIM7100 (4G) modules, on the same board layout.

However, today, the SIM5360 modules are almost six times the price of our old SIM900 ones, and the SIM7100 is almost twice that again. So, we can support 4G modems - just too expensive at the moment to be worthwhile. I am also concerned because 4G LTE NB-IoT is coming soon, and that seems a much better match for what we require (SIM7000 module).

Overall, we decided to stay with 3G for the moment, and see what happens with NB-IoT later this year. We will then either release SIM7000 or SIM7100 modem option.

Hope that helps, and makes sense.

Regards, Mark.

> On 6 Mar 2018, at 8:43 AM, Mark Webb-Johnson <mark at webb-johnson.net> wrote:
> <PastedGraphic-14.tiff>
> The first batch of production OVMS v3 modules and modems is being produced now. We estimate availability on Fasttech late this month (March 2018). Specifications and Pricing follow.
> OVMS v3.1 module: US$90
> Black injection-moulded plastic enclosure
> ESP32 WROVER processor (16MB flash, 4MB SPI RAM, 520KB SRAM, dual core 160/240MHz Xtensa LX6 processor)
> WIFI 802.11 b/g/n
> Bluetooth v4.2 BR/EDR and BLE
> 3x CAN buses
> 1x Micro USB connector (for flash download and serial console)
> 1x Micro SD card slot
> 1x Internal expansion slot
> 8x EGPIO, 2x GPIO
> 1x GSM antenna connector
> 1x GPS antenna connector
> 1x DB9 vehicle connector
> 1x DB26 expansion connector
> OVMS v3.1 SIM5360E 3G modem module (either US or EU edition): US$60
> Modem is an optional plug-in module, that can be changed in future (to allow for new technology)
> 3G (EV-DO/HSPA+) dual band modem
> Includes 2G (GSM/GPRS) and 2.5G (EDGE) quad band
> Nano (4FF) SIM slot
> HOLOGRAM.IO nano sim
> US edition is SIM5360A (Dual-Band UMTS/HSPA+ 850/1900MHz, Quad-Band GSM/GPRS/EDGE 850/900/1800/1900MHz)
> EU edition is SIM5360J(E) (Dual-Band UMTS/HSPA+ 900/2100MHz, Quad-Band GSM/GPRS/EDGE 850/900/1800/1900MHz)
> Bundle (OVMS v3.1 module + v3.1 modem): US$150
> A time-limited special discount of US$20 off this bundle price will be provided for existing OVMS v2 owners (making this bundle offer US$130).
> This first production batch is intended for experienced OVMS v2 users and v3 developers. Please note:
> Firmware is not complete, and should be considered beta
> Functionality is approximately equivalent to basic OVMS v2 firmware, but some advanced features (such as ACC, SMS control, etc) are not available yet
> Firmware is far in advance of v2 in other aspects (such as built in web server, metrics, console, tcp/ip support, diagnostics, geofencing, scripting, etc)
> Firmware can be updated either Over The Air (OTA), by Micro SD card, or over USB interface
> Vehicle support currently includes: Kia Soul EV, Nissan Leaf, Renault Twizy, Tesla Roadster
> The antenna and vehicle connectors for OVMS v3 are the same as for OVMS v2, and existing cables/antennas can generally be re-used for OVMS v3. Note, however, that the frequency ranges supported by individual 3G networks may be different than 2G, so may benefit from an antenna specifically designed for the 3G frequency ranges used.

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