Hacking for most flops at most efficient power reduction:
12Vdc is the output of many solar panels.
Placing four double A Nickel Metal Hydride (Ni-Mh) rechargeable in this
charger compartment might supply a rPi around the clock.
So what's the lowest power display? LCD? And who's to say that during
the day the tiny fluorescent tube or line of white LEDs at the bottom
can't be augmented or illuminated by a solar lightpipe fiber?
I've got a 110V power mains UPS designed to charge what is essentially a
12V motorcycle battery, and recreates a pseudo-sine AC 120V with an
inverter that draws off of the battery as it charges.
I hacked it to also charge with solar panels and draw the 12V off an
automotive battery directly to operate a 12V display HDTV LCD with
tuner, DVD and several inputs - TV, NTSC Video, Component RGB (RCAx3),
2xHDMI and a PC xVGA 1080p. Starting with a full charge, and a two
square foot solar panel, I can run just over 5 days and nights
continuously in hazy overcast, and indefinitely with two bright sunny
days (or more) a week. I haven't plugged it into the mains to charge it
since the start of the hack, and it's reassuring I can tap a few minutes
of 110V in an emergency with the inverter sockets.
I can tinker with rPi (or watch TV,) charge my mobile phone and power
the Ethernet/wifi network all while entirely off the power grid. Nobody
is burning coal in my proxy to allow me to create digitally. And the
setup could work just as easily in Peru and Bolivia as here in the
suburbs of California.
All ladders in the Temple of the Forbidden Eye have thirteen steps.
There are thirteen steps to the gallows, firing squad or any execution.
Thought most of the problem was down to the fact that there is enough
"free" oxygen in the chemistry that once they get burning they don't
need atmospheric oxygen to keep going. This makes 'em a tad difficult
to put out...
I think more modern chemistry cells have less "free" oxygen so don't
become self sustaining incendiary devices quite so easily.
Thanks for that pointer. This looks like an interesting device, but
also rather more complex (and perhaps more costly) than I would like for
my own application.
Instead, how about a device with the same micro-USB 5-volt power socket
as on the RPi, a lead which connects into the RPi, and that's all? I'm
already using the 26-pin header on the RPi for my own connections and,
in my experience, simply letting the power fail (as in pulling the plug)
does not cause the RPi any problems. There's no need for a controlled
A simple black-box approach....
Perhaps something like the "EasyAcc 12000mAh 4 USB External Battery Pack
Charger Power Bank" would suit me better?
I kinda like that as well. Seems I could use this for the RPi and also
for my cell phone and android pad. All in the same convenient unit. 8>)
The UPiS is a great device, yes, but David makes some great points.
Allowing the RPi's interface to be free for other uses is the best.
First of all, The UPiS leave free all pins of the P1 connector, it uses onl
y the 5 V and GND, so you are free to use them as you like.
In addition it offers so much extra features that I think make it very usef
i.e. Triggers when power offs, automatic battery charging, automatic temper
ature monitoring, etc. About the price - it is low, as much as possible if
you take into account your time and all other compenents - the UPiS Basic
with battery, USB converter, charger, thermometer etc.. costs about 35-49 e
uro and is just plug and play.
Of course it is not cove all requirements therefore you are alwayes able to
find a simpler solution for you.
My Warmest Regards
Thanks for that clarification. It was not immediately obvious that
there were stackable pins on the GPIO connector which allowed its
continued use. Perhaps you might add a photo showing your module on an
RPI, with and without further connections to the GPIO connector?
Oh, I just saw one photo in the downloads section. "Downloads" is
normally where I would look for support information such as
software/firmware upgrades and manuals. Actually, I think it would be
easier to navigate your Web site if the main product page were HTML
rather than PDF, so you could then add links to the photos and FAQ.
The price seems very fair, I look forward to reading some reviews of
.. and yet, their FAQ says:
Q: Can I use the UPiS Module with other boards?
A: Yes. Just plug it in on top of them, or use the version of the UPiS
Module with extended P1 connector, and then plug in the other board on
top of it. The UPiS Module will power also your additional boards and
other existing peripherals.
The annoying animated GIF on the front page clearly shows a board with
the GPIO pins extended. Also in the downloadable PDF it's labelled as
"Stackable or top end RPi P1 connector", so extended pins are clearly
an available option.
Wait a while, until next week, we will start distribution.
in any case please find here a description form the up-going manual.
The UPiS is an Advanced RaspberryPi® Powering add-on Module that incor
porates except of the powering functionality a plenty of additional feature
s. It is equipped with LIPO battery 1200/2600 mAh as also with buck/boost s
witching power converter. There is no need for any additional cabling, as a
smart current measurement system continuously checks powering voltage and
current consumption, and based on it, when the cable power is absent automa
tically switches to the battery source. During battery powering process it
keeps checking power consumption and when cable power is available again, i
t is switching to it automatically, and then the battery source off.
The UPiS as an add-on Module is addressed to all users that need a power ba
ck-up for the applications build based on the Raspberry Pi. There are plent
y of applications that can be supported but the UPiS and starts from a simp
le power backup for the server; going through embedded applications requir
ing extended powering inputs like car computers, robotic; and ending on a s
olar powered applications. The list of possibly applications where UPiS can
be used is same wide as the Raspberry Pi itself. Due to additional feature
s listed and described below UPiS is solving most of the common requirement
s that users met during embedded applications build up.
Features of the UPiS Module are listed below and contain powering functiona
lities, I/O functionalities, RTC functionalities, etc. There are:
? Supervised and Protected Powering from a various cable sources
o RaspberryPi ® micro USB (5 VDC)
o Additional micro USB (5VDC)
o Extended External Powering Input (7 VDC ? 18 VDC)
? Battery Power Backup on each cable powering source (including ori
ginal Raspberry PI micro USB) ? the UPS feature
? Onboard Rechargeable LiPO Battery (1150 mAh or 2600 mAh)
? Intelligent Automatic LiPO Battery Charger
? Additional Protected 5 VDC 140 mA output for user applications
? RaspberryPi ® Hardware ON/OFF Switch
? Embedded on Board Analog Temperature Sensor accessible via RS232
? Onboard Protected 1-wire interface
? Onboard Protected I/O pin
? Onboard True 12 V RS232 interface to the external world
? Onboard True USB interface (RS232 ? USB Bridge)
? Onboard Normally Open Relay
? Programmable time RaspberryPi ® File Safe Shutdown button
? Embedded Emulated RTC (Real Time Clock) accessible via I2C
? Full monitoring over all UPiS Parameters via RS232 port:
o Current Consumption
o Voltage on each Power source
o System Temperature
o Battery Level
o Powering source
? Programmable Triggers on various events i.e. powering change, low
battery, high temperature, digital input pin change etc
? Time programmable RaspberryPi power ON/OFF based on RTC
? XTEA cryptographic Customer Software Protection
? Scripting Language
The UPiS Module is 100% Plug and Play; there is no need to setup anything.
There is no need even to change the original micro USB power connection plu
gged to your Raspberry Pi if you need to keep the old cabling as it was. Y
ou will plug-in the UPiS Module to the P1 connector on the top of your Rasp
berryPi® and just use it. UPiS Module solves all common powering probl
ems and in parallel offering battery backup and plenty of additional featur
es. There are two versions available UPiS Basic and UPiS Advanced, each one
could be configured on order with top-end or stackable P1 connector. The d
ifference has been shown on the pictures below.
Well, I haven't had much use for the GPIO, yet, but, I may be
using it in the future, so, if I do order a UPiS, it will be
with the stackable header. Oh well, there goes my nice little
compact case. I will definitely need to mount the RPi another
I don't know what kind of newsreaders these guys use, but, I am
getting tired of all the extra ">> >>" that they throw in there.
I am so OCD that I feel the need to reformat every post to which
I am replying. Well, not every one... Some of them are not bad.
On Fri, 23 Aug 2013 21:50:42 -0400, "Bill Garber"
declaimed the following:
It's called "Google Groups"...
About a year ago GG appears to have been "updated". Since that time,
the effect has been that NNTP formatted messages coming in from regular
servers get transformed into HTML paragraphs -- on /each/ line-ending. Then
when routing a reply out, a blank line gets added between each of these
The result: any quoted quoted text migrating from GG to NNTP gets
double-spaced... And more double-spacing for each round-trip quoting...
Wulfraed Dennis Lee Bieber AF6VN