5 Apr
2016
5 Apr
'16
4:41 p.m.
At tonight's meet/hacknight we'll be making prototypes of emergency power
cables so people can power their mesh nodes in a disaster situation.
The idea is to make cheap, long, foolproof cables + instructions that make
it simple to power mesh nodes from any 12 vdc source.
The thinking behind this is that the U.S. is full of cars and the most
medium-term power supply in the days/weeks after a disaster will be car
batteries.
A while back we ordered components for this from china and now that they've
arrived we can make some cables and test how they work and whether we need
better under-voltage/over-voltage protection.
See you at 7:30 pm!
--
marc/juul
5 Apr
5 Apr
8:15 p.m.
Sorry i missed tonight's meeting, but i am just leaving work. May see you
tomorrow at our Sudoroom's meeting.
Hack the Planet!
Daniel
On Tuesday, April 5, 2016, Marc Juul <juul(a)labitat.dk> wrote:
At tonight's meet/hacknight we'll be making
prototypes of emergency power
cables so people can power their mesh nodes in a disaster situation.
The idea is to make cheap, long, foolproof cables + instructions that make
it simple to power mesh nodes from any 12 vdc source.
The thinking behind this is that the U.S. is full of cars and the most
medium-term power supply in the days/weeks after a disaster will be car
batteries.
A while back we ordered components for this from china and now that
they've arrived we can make some cables and test how they work and whether
we need better under-voltage/over-voltage protection.
See you at 7:30 pm!
--
marc/juul
--
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6 Apr
6 Apr
3 p.m.
Are inputs up to 15V tolerant? Alot of battery chargers go up to 14.8V
so if you want to be able to charge battery while connected it would be
good to ensure whatever voltage regulator (not sure if onboard or a
separate power board/deadbug) can handle. I use LM7805s which have input
voltage up to 35V if you want to run on a 24v battery, not the most
efficient but I have never had problems.
On 2016-04-05 20:15, danarauz(a)gmail.com wrote:
Sorry i missed tonight's meeting, but i am just
leaving work. May see you tomorrow at our Sudoroom's meeting.
Hack the Planet!
Daniel
On Tuesday, April 5, 2016, Marc Juul <juul(a)labitat.dk> wrote:
Links:
------
[1] https://sudoroom.org/lists/listinfo/mesh
[2] https://omnicommons.org/donate
At tonight's meet/hacknight we'll be
making prototypes of emergency power cables so people can power their mesh nodes in a
disaster situation.
The idea is to make cheap, long, foolproof cables + instructions that make it simple to
power mesh nodes from any 12 vdc source.
The thinking behind this is that the U.S. is full of cars and the most medium-term power
supply in the days/weeks after a disaster will be car batteries.
A while back we ordered components for this from china and now that they've arrived
we can make some cables and test how they work and whether we need better
under-voltage/over-voltage protection.
See you at 7:30 pm!
-- marc/juul
--
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- - - - -
Help open a people-powered common space in Oakland, California!
https://omnicommons.org/donate [2]
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mesh mailing list
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https://sudoroom.org/lists/listinfo/mesh [1] 
6:14 p.m.
Hack the planet!
On Wed, Apr 6, 2016 at 3:00 PM, <hol(a)gaskill.com> wrote:
Are inputs up to 15V tolerant? Alot of battery
chargers go up to 14.8V so
if you want to be able to charge battery while connected it would be good
to ensure whatever voltage regulator (not sure if onboard or a separate
power board/deadbug) can handle. I use LM7805s which have input voltage up
to 35V if you want to run on a 24v battery, not the most efficient but I
have never had problems.
On 2016-04-05 20:15, danarauz(a)gmail.com wrote:
Sorry i missed tonight's meeting, but i am just leaving work. May see you
tomorrow at our Sudoroom's meeting.
Hack the Planet!
Daniel
On Tuesday, April 5, 2016, Marc Juul <juul(a)labitat.dk> wrote:
At tonight's meet/hacknight we'll be
making prototypes of emergency power
cables so people can power their mesh nodes in a disaster situation.
The idea is to make cheap, long, foolproof cables + instructions that
make it simple to power mesh nodes from any 12 vdc source.
The thinking behind this is that the U.S. is full of cars and the most
medium-term power supply in the days/weeks after a disaster will be car
batteries.
A while back we ordered components for this from china and now that
they've arrived we can make some cables and test how they work and whether
we need better under-voltage/over-voltage protection.
See you at 7:30 pm!
--
marc/juul
--
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - -
Help open a people-powered common space in Oakland, California!
https://omnicommons.org/donate
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - -
_______________________________________________
mesh mailing listmesh@lists.sudoroom.orghttps://sudoroom.org/lists/listinfo/mesh
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mesh mailing list
mesh(a)lists.sudoroom.org
https://sudoroom.org/lists/listinfo/mesh
10:36 p.m.
On Wed, Apr 6, 2016 at 3:00 PM, <hol(a)gaskill.com> wrote:
Are inputs up to 15V tolerant? Alot of battery
chargers go up to 14.8V so
if you want to be able to charge battery while connected it would be good
to ensure whatever voltage regulator (not sure if onboard or a separate
power board/deadbug) can handle. I use LM7805s which have input voltage up
to 35V if you want to run on a 24v battery, not the most efficient but I
have never had problems.
The TP-Link N750 units take 4.75V to 18V, the Westen Digital N600 units
take 4.5v to 23v and Ubiquiti gear takes 10.5 to 25v:
https://sudoroom.org/wiki/Mesh/Power#Voltage
--
marc/juul
3095
days inactive
3097
days old
4 comments
4 participants
participants (4)
-
danarauz＠gmail.com -
hol＠gaskill.com -
Jehan Tremback -
Marc Juul