[Ovmsdev] Modem LED control?

[Mark Webb-Johnson]

I think that this can control it (on SIM5360):

Disable:
	simcom muxtx 3 AT+CGFUNC=1,0

Enable:
	simcom muxtx 3 AT+CGFUNC=1,1

There is also AT+CLEDITST, but I can’t seem to make that work.

Black case should be darker and let light through. The 3D printed prototypes are very transparent.

Regards, Mark.

> On 19 Dec 2017, at 3:37 PM, Michael Balzer <dexter at expeedo.de> wrote:
> 
> Greg,
> 
> the blue LED is not controllable, it's acting as a Zener diode in the voltage regulation, i.e. it flashes when draining a too high voltage.
> 
> So, as a workaround you could replace it by a standard Zener diode, just needs to have the same breakdown voltage.
> 
> But I don't think the black case lets through much light -- Mark?
> 
> Regards,
> Michael
> 
> 
> Am 19.12.2017 um 05:47 schrieb Greg D.:
>> Hi folks,
>> 
>> The "real" module's case is black, but how well does it block light? 
>> 
>> I'm thinking about the modem's LED, which flashes pretty brightly in the
>> proto (white) case.  In a dark parking lot, it could attract unwanted
>> attention.  (Or, perhaps simulate a car alarm, which wouldn't
>> necessarily be bad...)
>> 
>> If the LED is visible externally, is there a way to disable it?
>> 
>> Greg
>> 
>> 
>> 
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> 
> -- 
> Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal
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> 
> 
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