Re: [M100] USB "juice pack"

Hi John, I use a 6v lantern battery in a plastic frame with a power switch and cable with the correct barrel connector on it.  I got it while I was living in Australia before I moved over to the USA do i don't know what the part number is.  I may have even got it at the local tandy store  :-)

Re: [M100] USB "juice pack"

Looking at the Technical Reference Manual, there is a reverse-polarity diode in series with the negative (center pin) of the jack. This provides basic reverse-polarity protection but will also cause a small voltage drop (typically 0.6-0.7 volts) between the DC input and the main power bus. If you f

Re: [M100] USB "juice pack"

You could make a short adapter to plug into the Model-T that reverses the polarity of the connector. My question is,"Is the output adequate?" Sent from Outlook Mobile On Fri, Nov 27, 2015 at 1:20 PM -0800, "John R. Hogerhuis" mailto:jho...@pobox.com>> wrote: On Fri, No

Re: [M100] Is it possible to use USb flash drive with a Model 100

> If it made financial sense, I might consider making another run of > NADSBoxes, but it just doesn't. With all the setup costs with > machining the enclosures, PCB fab NRE, etc., plus component costs, my > up-front cash expenditure the last time was $12,000, and that was > before selling a singl

Re: [M100] USB "juice pack"

Looks like this is the right cable but they don't ship to US. http://www.amazon.co.uk/USB-voltage-converter-cable-negative/dp/B011LO5KJE%3Fpsc%3D1%26SubscriptionId%3DAKIAJJKQFJJZIZTE4NFA%26tag%3Dantiviexplai-21%26linkCode%3Dxm2%26camp%3D2025%26creative%3D165953%26creativeASIN%3DB011LO5KJE%26ascsub

Re: [M100] USB "juice pack"

Yes, it's definitely worth re-iterating that Model 100 connector polarity is the opposite of most all power supplies you could buy off the shelf these days. The outside is positive, the inside negative. Having applied a pack with a cable the wrong way round (guessing rather than reading the manual!

Re: [M100] USB "juice pack"

I think I found the answer to my question on the barrel connector : "5.5 mm O.D. x 2.1 mm I.D., or size M coaxial (barrel type) DC power" I found USB->Barrel connector that have these specs except that they are positive center power pin instead of negative. So either I have to modify the cable sl

Re: [M100] USB "juice pack"

On Fri, Nov 27, 2015 at 1:40 PM, Brad Whitlock wrote: > The juice packs should put out 5V, the same as you'd get from 4 rechargeable > batteries, so it should just be a matter of making a cable with USB on one > end and the right size coax power on the other. > OK so power wise should be compati

Re: [M100] USB "juice pack"

The juice packs should put out 5V, the same as you'd get from 4 rechargeable batteries, so it should just be a matter of making a cable with USB on one end and the right size coax power on the other. Alkaline AA battery capacity ranges from 1800-2600 mAH, so for a 2200 mAh juice pack I'd expect

Re: [M100] USB "juice pack"

John, I was looking at the Pi Zero and figuring that having that and an FTDI adapter would get you something you could possibly run your tools on and have a full TPDD plus other tools in a small space that would be a "bump" on the end of a m102 or m100 (or 200 in my case). I'm probably going to g

Re: [M100] USB "juice pack"

On Fri, Nov 27, 2015 at 1:01 PM, Mitch Parker wrote: > John, > > How many hours can you run a pi from one? I have quite a stash myself, and > they are all between 2000 and 2600 mAh. > > Thanks, > > Mitch > Not sure haven't measured. I guess it depends on which one. They seem to range from 300-700

Re: [M100] USB "juice pack"

John, How many hours can you run a pi from one? I have quite a stash myself, and they are all between 2000 and 2600 mAh. Thanks, Mitch On Fri, Nov 27, 2015 at 3:57 PM John R. Hogerhuis wrote: > Anyone know what it takes to use the phone charger "juice packs" to run a > M100? > > Is there an of

[M100] USB "juice pack"

Anyone know what it takes to use the phone charger "juice packs" to run a M100? Is there an off the shelf connector or converter needed or would I have to build something myself? I have a handful of vendor swag cheapie units laying around. Running a Raspberry Pi off one of them. -- John.

Re: [M100] Is it possible to use a USB flash drive with a Model 100

Aha, you use PuTTY? Good to know. And, it's a PortableApp too, so you can put it on a USB-stick without installing it to your PC. You can use any PC, that way. Greetings from the TyRannoSaurus Jan-80 |\ _,,,--,,_ @ work / ,`.-'`' ._ \-;;, |,4- ) )_.;.( `'-' <---''(_

Re: [M100] M10X/T200: Overclocking CPU

Dear all, question I?m thinking about, has clock for the 81C55 to run sychronized with CPU clock. If it is independent would it be an option to use a separate 2,4576MHz oszilator to drive PIO @ its original speed. Any idea if this can work? Kind regards Georg Käter On Thu, Nov 26, 2015 at 8:33