What do you plan to use for weather protection? -wes
On Sun, Apr 9, 2017 at 9:54 PM, Chuck Hast <[email protected]> wrote: > Tomás > Sorry I should have got back on and told you I found it, but the charge > rate > is only 1.5 amp, the other unit is 2.0 amp. The RPi doing the WeeWx stuff > pulls data every 60 seconds, writes to the DB and then sends it out to WU, > CWOP and Findu.com. When it does that it pulls a wee bit more current > that usual. So I am going to give the other unit a try as I have the PSU > for > it. I will also power the Acurite console off of it. If this works I have > a whole > boat load of places I am going to do that trick. Indeed if we do not move > out > of this place, I am going to put an RPi up on the ridge above the house > with > a AT&T LTE modem on it, AT&T has an offer of 250GB/mo @ $60/mo or 500 > GB/mo @ $100/mo. They just came out with the offer last month, it is > directed > at some states back east, but people are calling and getting the offering > every- > where they have put in LTE. At this time I have 50GB @ $110/mo with Hughes > net, and they suck royally. So I can put an RPi up on the ridge and run > about > 500ft of fibre down to the house let the RPi handle the cell modem and get > rid of Hughesnet. Whattavampire they are. That one I will power with the > "kludge" as it will be a much better option there. May even try some solar > to see how much the batteries will keep up that way. Use an RPi to monitor > that too. > > If I get the job I am angling for I will not need to worry about it, but I > can > always find something for an RPi to do. > > On Sun, Apr 9, 2017 at 8:21 PM, Tom <[email protected]> wrote: > > > Follow the second link, scroll down to product description about half > > way through the page, and check the Duo-Charge Section: > > Product description > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Offer Type:19200mAH > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > TeckNet PowerTitan T2 19200mAH External > > Battery: > > Save time when charging! > > > > . > > . > > . > > Duo-Charge: > > The Duo-Charge function enables charging of the PowerTitan while it > > recharges a connected device such as an iPhone or iPad. > > ....... > > Besides the battery capacity, there does not seem to be functional > > difference between the chargers. Either of them should keep mostly idle > > RPi running for at close to a day. I have 6500mAh USB charger running > > RPi + PWM hat + WiFi dongle + a few sensors on a robot cart for about 8 > > -9-hours straight. The Pi lasts much longer than the other battery pack > > feeding the motors. > > I should have mentioned it in my original post, I thought that it is > > obvious: > > If your RPi consumes close to or more than the charging current max 2A > > (depending on your actual power supply) - about 10% to power the > > charger = ~1800mA --> your battery pack will not recharge after the > > outage. In such case you would have to come up with different UPS > > solution. > > Best luck, Tomas > > On Sun, 2017-04-09 at 19:23 -0700, Chuck Hast wrote: > > > Tomas, > > > The second selection looks more like what I am looking for but the > > > first one > > > will certainly work. But I do not see mention of pass through > > > charging or > > > charge while charging. > > > > > > Went ahead and bought the first selection. > > > > > > On Sun, Apr 9, 2017 at 6:46 AM, Nat Taylor <[email protected]> wrote: > > > > > > > I use something like that second battery to power my pi, it's just > > > > a cell > > > > phone charger, I'm not sure what running it while plugged in does > > > > to it's > > > > life. One could put it on a timer so the power cuts, it drains > > > > the > > > > battery for a while, then charges back up if that was advantageous > > > > for > > > > battery life... > > > > > > > > On Sun, Apr 9, 2017 at 2:39 AM Tom <[email protected]> > > > > wrote: > > > > > > > > > There are probably other USB power banks which can be charged and > > > > > discharged together. Here are two examples: > > > > > https://www.amazon.com/TeckNet-Universal-16750mAh-Output-PowerZen > > > > > /dp/B0 > > > > > 0FAU7ZB2/ref=pd_cp_107_1?_encoding=UTF8&pd_rd_i=B00FAU7ZB2&pd_rd_ > > > > > r=0JMM > > > > > HXMXK7RYWY9K361K&pd_rd_w=712hM&pd_rd_wg=6mOCV&psc=1&refRID=0JMMHX > > > > > MXK7RY > > > > > WY9K361K > > > > > <https://www.amazon.com/TeckNet-Universal-16750mAh- > > > > Output-PowerZen/dp/B00FAU7ZB2/ref=pd_cp_107_1?_encoding= > > > > UTF8&pd_rd_i=B00FAU7ZB2&pd_rd_r=0JMMHXMXK7RYWY9K361K&pd_rd_ > > > > w=712hM&pd_rd_wg=6mOCV&psc=1&refRID=0JMMHXMXK7RYWY9K361K> > > > > > https://www.amazon.com/PowerTitan-19200mAh3-Port-Portable-Externa > > > > > l-Tech > > > > > nology/dp/B01B534D4Y/ref=sr_1_1?s=wireless&srs=5713662011&ie=UTF8 > > > > > &qid=1 > > > > > 491729627&sr=1-1 > > > > > <https://www.amazon.com/PowerTitan-19200mAh3-Port- > > > > Portable-External-Technology/dp/B01B534D4Y/ref=sr_1_1?s= > > > > wireless&srs=5713662011&ie=UTF8&qid=1491729627&sr=1-1> > > > > > Based on recommendation from this guy: > > > > > http://raspi-ups.appspot.com/en/index.jsp He used older model > > > > > which is > > > > > no longer available. > > > > > I wonder how smart is the circuit in avoiding the > > > > > charge/discharge > > > > > battery cycles when the power is on - it relates to the battery > > > > > life. > > > > > Tomas > > > > > On Sat, 2017-04-08 at 18:57 -0700, Chuck Hast wrote: > > > > > > On Sat, Apr 8, 2017 at 3:42 PM, Tom < > > > > > > [email protected]> > > > > > > wrote: > > > > > > > > > > > > > dd nor rsync alone will not be able to do full backup of > > > > > > > running > > > > > > > computer (RPi). > > > > > > > > > > > > > > > > > > > That was what I figured, just wanted to make sure. > > > > > > > > > > > > > > > > > > > The best course of action is to separate the OS from your > > > > > > > data - > > > > > > > whatever your RPi is normally writing - then backup each > > > > > > > separately. > > > > > > > * When you separate the data, you could even store it off > > > > > > > the RPi > > > > > > > avoiding need for local data backups on RPi altogether. > > > > > > > > > > > > > > > > > > > The drive has two partitions on it /boot and /. /boot is a > > > > > > vfat, the > > > > > > rest > > > > > > of > > > > > > it is ext4. I supposed that I could stop the service (weather > > > > > > data > > > > > > capture) > > > > > > back up the files that are critical to the weather > > > > > > station.After the > > > > > > back up > > > > > > is done start the service again. Maybe store them on a jump > > > > > > drive and > > > > > > after the station service is back up and running ship them off > > > > > > to the > > > > > > location > > > > > > I will keep the back ups in. I figure that I could do the back > > > > > > up in > > > > > > the wee > > > > > > hours of the morning. > > > > > > > > > > > > > > > > > > > * If you want to keep the data on RPi, you could back it up > > > > > > > by > > > > > > > rsync > > > > > > > to separate media (USB) or a network storage > > > > > > > * You cannot back up the OS while you are using it - that > > > > > > > is why > > > > > > > this > > > > > > > is normally done on a separate computer. It is easier and > > > > > > > faster > > > > > > > than > > > > > > > booting your RPi from USB or network and then doing the > > > > > > > backup. > > > > > > > * Perhaps the OS does not need to be backed up often or not > > > > > > > at > > > > > > > all as > > > > > > > you could simply create separate OS image, even on another SD > > > > > > > card > > > > > > > attached to your Pi. > > > > > > > > > > > > > > > > > > > All I really need for recovery is the WeeWx db file, WeeWx > > > > > > config > > > > > > file, > > > > > > skins > > > > > > file and the nginx configuration. I could actually keep a > > > > > > separate > > > > > > image and > > > > > > just insert the latest files and quickly swap out the bad SD > > > > > > card. > > > > > > That > > > > > > should > > > > > > take care of it. > > > > > > > > > > > > I should be able to automate the OS configuration, so that I > > > > > > just run > > > > > > a > > > > > > script > > > > > > it looks for the SD card, installs the OS makes sure that the > > > > > > parameters > > > > > > that > > > > > > I set manually on installation are set correctly, probably can > > > > > > automate the > > > > > > whole process. > > > > > > > > > > > > * Your backup target/media could be another SD card connected > > > > > > to > > > > > > RPi > > > > > > > in a SD card reader, that way you could just swap the cards > > > > > > > .... > > > > > > > Thinking outside of a box - perhaps you need little UPS for > > > > > > > your Pi > > > > > > > to > > > > > > > avoid regular data corruption altogether. There are some USB > > > > > > > charging > > > > > > > batteries which can be charged and used both at the same time > > > > > > > (most > > > > > > > can > > > > > > > be either charged or used, not both). Modest battery could > > > > > > > keep > > > > > > > your > > > > > > > Pi running for hours. > > > > > > > > > > > > > > > > > > > I have been looking for a battery pack that will allow me to > > > > > > let it > > > > > > float > > > > > > on the > > > > > > powersupply until power goes away, then it takes over. So far > > > > > > all of > > > > > > them > > > > > > that > > > > > > I have looked at will not switch between > > > > > > charge/float/discharge. I > > > > > > have seen > > > > > > a couple that plug into the pin field on the RPi, but I am > > > > > > trying to > > > > > > keep > > > > > > the > > > > > > case clean. I have built up a power supply with a battery on > > > > > > it, and > > > > > > a heavy > > > > > > duty USB dual port power cartridge that supplies the power I > > > > > > need for > > > > > > the > > > > > > RPi and the WX station console. It is kind of big, I am > > > > > > certainly > > > > > > looking > > > > > > for > > > > > > one of the power pack batteries that does not care if it is > > > > > > being > > > > > > charged or > > > > > > not. > > > > > > > > > > > > > > > > > > > I hope that this is pointing you in the right direction to > > > > > > > your > > > > > > > particular circumstances. > > > > > > > > > > > > > > > > > > Yes it confirmed most of what I was already suspecting. Now if > > > > > > I can > > > > > > just > > > > > > find a nice clean battery pack that meets the above > > > > > > requirement. > > > > > _______________________________________________ > > > > > PLUG mailing list > > > > > [email protected] > > > > > http://lists.pdxlinux.org/mailman/listinfo/plug > > > > > > > > > _______________________________________________ > > > > PLUG mailing list > > > > [email protected] > > > > http://lists.pdxlinux.org/mailman/listinfo/plug > > > > > > > > > > > > > > > _______________________________________________ > > PLUG mailing list > > [email protected] > > http://lists.pdxlinux.org/mailman/listinfo/plug > > > > > > -- > > Chuck Hast -- KP4DJT -- > Glass, five thousand years of history and getting better. > The only container material that the USDA gives blanket approval on. > _______________________________________________ > PLUG mailing list > [email protected] > http://lists.pdxlinux.org/mailman/listinfo/plug > _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
