[Ovmsdev] OVMS v3.3 hardware

[Mark Webb-Johnson]

I now have two prototypes of the 4G modem using SIM7600G R2 chip for OVMS v3.

One is for my own work, but willing to send the other free to a volunteer developer willing to spend time working with me to develop and test this new option. Obviously looking for someone who has spent some time on the OVMS code base, with a good history of contributions to the project and a willingness to work on improving the cellular modem driver.

Any volunteers? Please eMail me directly (mark at openvehicles.com <mailto:mark at openvehicles.com>).

Regards, Mark.



> On 17 Aug 2021, at 1:30 PM, Mark Webb-Johnson <mark at webb-johnson.net> wrote:
> 
> For the 4G modem options we need to go through FCC, CE, and ROHS certification. Minimising/eliminating the changes to the main board simplifies this (and brings down the exorbitant costs) but if there is anything urgent / necessary, now is the time to do it.
> 
> The goal here is to maintain 100% compatibility with existing OVMS main boards, to keep this is a simple and relatively cheap upgrade of the modem board.
> 
> So far, I have come up with this minimal list:
> 
> Main board v3.3: Improve soldering of micro USB port. Bigger solder pads, and more solder to secure it better.
> 
> Modem board v1.3: Add support for SIM7600 module.
> 
> Modem board v1.3: Fix support for DTR sleep/awake support.
> 
> Is there anything else required for this update?
> 
> Regards, Mark.
> 
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