Pi as a UPS monitor

IRJ

@JaredBusch said in Pi as a UPS monitor:

Re: Got a Pi

@IRJ said in Got a Pi:

@travisdh1 said in Got a Pi:

@JaredBusch said in Got a Pi:

So where does everyone buy their Pi from?

I'm a fan of Adafruit, Element 14, and Jamco Electronics, Mouser, and Digikey myself.

I believe the Pi is sold but adafruit through Amazon. Adafruit is so slow, because they get so many orders, but through amazon they offer prime shipping.

So the consensus was a Pi3. I assume I need power and a case.

You can see above that all I have is the UPS, router, and cable modem. So I need to get power from 110 converted down to the Pi3 and a case to hold it all.

Yeah you are best of getting the Canakit from Amazon. Regular micro usb adapters wont work because the Pi needs 2.5amps to power on. If you have an adapter that is 2.5 amps or greater it will work, but most phone adapters are 2 amps or less.

gjacobse

Amazon Pi3 with case and PSU

Just happens to the the CanaKit...

thwr

@JaredBusch said in Pi as a UPS monitor:

Re: Got a Pi

@IRJ said in Got a Pi:

@travisdh1 said in Got a Pi:

@JaredBusch said in Got a Pi:

So where does everyone buy their Pi from?

I'm a fan of Adafruit, Element 14, and Jamco Electronics, Mouser, and Digikey myself.

I believe the Pi is sold but adafruit through Amazon. Adafruit is so slow, because they get so many orders, but through amazon they offer prime shipping.

So the consensus was a Pi3. I assume I need power and a case.

You can see above that all I have is the UPS, router, and cable modem. So I need to get power from 110 converted down to the Pi3 and a case to hold it all.

Pi3 is overkill. Like buying an Intel Xeon 1250v3 for mspaint.exe. A Zero with a USB network dongle should do. Or any Linux-capable ARM board with an ethernet socket.

For the powersupply: What about some old smartphone charger?

gjacobse

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

Re: Got a Pi

@IRJ said in Got a Pi:

@travisdh1 said in Got a Pi:

@JaredBusch said in Got a Pi:

So where does everyone buy their Pi from?

I'm a fan of Adafruit, Element 14, and Jamco Electronics, Mouser, and Digikey myself.

I believe the Pi is sold but adafruit through Amazon. Adafruit is so slow, because they get so many orders, but through amazon they offer prime shipping.

So the consensus was a Pi3. I assume I need power and a case.

You can see above that all I have is the UPS, router, and cable modem. So I need to get power from 110 converted down to the Pi3 and a case to hold it all.

Pi3 is overkill. Like buying an Intel Xeon 1250v3 for mspaint.exe. A Zero with a USB network dongle should do. Or any Linux-capable ARM board with an ethernet socket.

For the powersupply: What about some old smartphone charger?

I wonder if something like the ESP8266 board would work...

thwr

@gjacobse said in Pi as a UPS monitor:

ESP8266

Technically yes, but using a Linux-capable board gives you lots of benefits - like using well known and tested drivers, cron, ethernet stack, firewall, SSH and what not

gjacobse

@thwr said in Pi as a UPS monitor:

@gjacobse said in Pi as a UPS monitor:

ESP8266

Technically yes, but using a Linux-capable board gives you lots of benefits - like using well known and tested drivers, cron, ethernet stack, firewall, SSH and what not

Agreed.

JaredBusch

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

Re: Got a Pi

@IRJ said in Got a Pi:

@travisdh1 said in Got a Pi:

@JaredBusch said in Got a Pi:

So where does everyone buy their Pi from?

I'm a fan of Adafruit, Element 14, and Jamco Electronics, Mouser, and Digikey myself.

I believe the Pi is sold but adafruit through Amazon. Adafruit is so slow, because they get so many orders, but through amazon they offer prime shipping.

So the consensus was a Pi3. I assume I need power and a case.

You can see above that all I have is the UPS, router, and cable modem. So I need to get power from 110 converted down to the Pi3 and a case to hold it all.

Pi3 is overkill. Like buying an Intel Xeon 1250v3 for mspaint.exe. A Zero with a USB network dongle should do. Or any Linux-capable ARM board with an ethernet socket.

For the powersupply: What about some old smartphone charger?

But what is the cost for all of that. That kit is $50 shipped.

A Pi3 has WiFi built in. Ethernet will not work as there is not LAN in many of these locations. Really that was the only reason for the Pi3.

IRJ

@JaredBusch said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

Re: Got a Pi

@IRJ said in Got a Pi:

@travisdh1 said in Got a Pi:

@JaredBusch said in Got a Pi:

So where does everyone buy their Pi from?

I'm a fan of Adafruit, Element 14, and Jamco Electronics, Mouser, and Digikey myself.

I believe the Pi is sold but adafruit through Amazon. Adafruit is so slow, because they get so many orders, but through amazon they offer prime shipping.

So the consensus was a Pi3. I assume I need power and a case.

You can see above that all I have is the UPS, router, and cable modem. So I need to get power from 110 converted down to the Pi3 and a case to hold it all.

Pi3 is overkill. Like buying an Intel Xeon 1250v3 for mspaint.exe. A Zero with a USB network dongle should do. Or any Linux-capable ARM board with an ethernet socket.

For the powersupply: What about some old smartphone charger?

Put what is the cost for all of that. That kit is $50 shipped.

A Pi3 has WiFi built in. Ethernet will not work as there is not LAN in many of these locations. Really that was the only reason for the Pi3.

I agree. It is overkill, but for the price difference in a corporate environment why not? You could eventually re purpose it and if you do bluetooth, wifi, and 4 usb ports are nice to have.

thwr

@JaredBusch said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

Re: Got a Pi

@IRJ said in Got a Pi:

@travisdh1 said in Got a Pi:

@JaredBusch said in Got a Pi:

So where does everyone buy their Pi from?

I'm a fan of Adafruit, Element 14, and Jamco Electronics, Mouser, and Digikey myself.

I believe the Pi is sold but adafruit through Amazon. Adafruit is so slow, because they get so many orders, but through amazon they offer prime shipping.

So the consensus was a Pi3. I assume I need power and a case.

You can see above that all I have is the UPS, router, and cable modem. So I need to get power from 110 converted down to the Pi3 and a case to hold it all.

Pi3 is overkill. Like buying an Intel Xeon 1250v3 for mspaint.exe. A Zero with a USB network dongle should do. Or any Linux-capable ARM board with an ethernet socket.

For the powersupply: What about some old smartphone charger?

Put what is the cost for all of that.

A Pi3 has WiFi built in. Ethernet will not work as there is not LAN in many of these locations. Really that was the only reason for the Pi3.

Pi Zero $5
Plug and play USB ethernet: $3.07 & FREE Shipping (Amazon)

vs

Pi3 $35 + higher power consumption

IRJ

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

Re: Got a Pi

@IRJ said in Got a Pi:

@travisdh1 said in Got a Pi:

@JaredBusch said in Got a Pi:

So where does everyone buy their Pi from?

I'm a fan of Adafruit, Element 14, and Jamco Electronics, Mouser, and Digikey myself.

I believe the Pi is sold but adafruit through Amazon. Adafruit is so slow, because they get so many orders, but through amazon they offer prime shipping.

So the consensus was a Pi3. I assume I need power and a case.

You can see above that all I have is the UPS, router, and cable modem. So I need to get power from 110 converted down to the Pi3 and a case to hold it all.

Pi3 is overkill. Like buying an Intel Xeon 1250v3 for mspaint.exe. A Zero with a USB network dongle should do. Or any Linux-capable ARM board with an ethernet socket.

For the powersupply: What about some old smartphone charger?

Put what is the cost for all of that.

A Pi3 has WiFi built in. Ethernet will not work as there is not LAN in many of these locations. Really that was the only reason for the Pi3.

Pi Zero $5

Plug and play USB ethernet: $3.07 & FREE Shipping (Amazon)

vs

Pi3 $35 + higher power consumption

Don't forget the $7-10 shipping cost for the zero since you cant buy it on amazon.

gjacobse

@thwr said in Pi as a UPS monitor:

@gjacobse said in Pi as a UPS monitor:

ESP8266

Technically yes, but using a Linux-capable board gives you lots of benefits - like using well known and tested drivers, cron, ethernet stack, firewall, SSH and what not

Just happened to think about this again as I spied the UPS on the desk.... and the one beside the desk,.. and then count how many APC UPS 500s I have.... which is like eight. then I have a APC 1100..

so for each to have a Pi would be about $400....ouch.

thwr

@IRJ said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

Re: Got a Pi

@IRJ said in Got a Pi:

@travisdh1 said in Got a Pi:

@JaredBusch said in Got a Pi:

So where does everyone buy their Pi from?

I'm a fan of Adafruit, Element 14, and Jamco Electronics, Mouser, and Digikey myself.

I believe the Pi is sold but adafruit through Amazon. Adafruit is so slow, because they get so many orders, but through amazon they offer prime shipping.

So the consensus was a Pi3. I assume I need power and a case.

You can see above that all I have is the UPS, router, and cable modem. So I need to get power from 110 converted down to the Pi3 and a case to hold it all.

Pi3 is overkill. Like buying an Intel Xeon 1250v3 for mspaint.exe. A Zero with a USB network dongle should do. Or any Linux-capable ARM board with an ethernet socket.

For the powersupply: What about some old smartphone charger?

Put what is the cost for all of that.

A Pi3 has WiFi built in. Ethernet will not work as there is not LAN in many of these locations. Really that was the only reason for the Pi3.

Pi Zero $5

Plug and play USB ethernet: $3.07 & FREE Shipping (Amazon)

vs

Pi3 $35 + higher power consumption

Don't forget the $7-10 shipping cost for the zero since you cant buy it on amazon.

Would probably buy 20 or more at once, as far as I remember @JaredBusch plans to deploy lots of them.

JaredBusch

@thwr said in Pi as a UPS monitor:

@IRJ said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

Re: Got a Pi

@IRJ said in Got a Pi:

@travisdh1 said in Got a Pi:

@JaredBusch said in Got a Pi:

So where does everyone buy their Pi from?

I'm a fan of Adafruit, Element 14, and Jamco Electronics, Mouser, and Digikey myself.

I believe the Pi is sold but adafruit through Amazon. Adafruit is so slow, because they get so many orders, but through amazon they offer prime shipping.

So the consensus was a Pi3. I assume I need power and a case.

You can see above that all I have is the UPS, router, and cable modem. So I need to get power from 110 converted down to the Pi3 and a case to hold it all.

Pi3 is overkill. Like buying an Intel Xeon 1250v3 for mspaint.exe. A Zero with a USB network dongle should do. Or any Linux-capable ARM board with an ethernet socket.

For the powersupply: What about some old smartphone charger?

Put what is the cost for all of that.

A Pi3 has WiFi built in. Ethernet will not work as there is not LAN in many of these locations. Really that was the only reason for the Pi3.

Pi Zero $5

Plug and play USB ethernet: $3.07 & FREE Shipping (Amazon)

vs

Pi3 $35 + higher power consumption

Don't forget the $7-10 shipping cost for the zero since you cant buy it on amazon.

Would probably buy 20 or more at once, as far as I remember @JaredBusch plans to deploy lots of them.

I dunnno about 20 at once, but yeah. a number of them.

IRJ

@thwr said in Pi as a UPS monitor:

@IRJ said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

Re: Got a Pi

@IRJ said in Got a Pi:

@travisdh1 said in Got a Pi:

@JaredBusch said in Got a Pi:

So where does everyone buy their Pi from?

I'm a fan of Adafruit, Element 14, and Jamco Electronics, Mouser, and Digikey myself.

I believe the Pi is sold but adafruit through Amazon. Adafruit is so slow, because they get so many orders, but through amazon they offer prime shipping.

So the consensus was a Pi3. I assume I need power and a case.

You can see above that all I have is the UPS, router, and cable modem. So I need to get power from 110 converted down to the Pi3 and a case to hold it all.

Pi3 is overkill. Like buying an Intel Xeon 1250v3 for mspaint.exe. A Zero with a USB network dongle should do. Or any Linux-capable ARM board with an ethernet socket.

For the powersupply: What about some old smartphone charger?

Put what is the cost for all of that.

A Pi3 has WiFi built in. Ethernet will not work as there is not LAN in many of these locations. Really that was the only reason for the Pi3.

Pi Zero $5

Plug and play USB ethernet: $3.07 & FREE Shipping (Amazon)

vs

Pi3 $35 + higher power consumption

Don't forget the $7-10 shipping cost for the zero since you cant buy it on amazon.

Would probably buy 20 or more at once, as far as I remember @JaredBusch plans to deploy lots of them.

well that is a different story if you deploying many at once.

IRJ

@JaredBusch said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@IRJ said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

Re: Got a Pi

@IRJ said in Got a Pi:

@travisdh1 said in Got a Pi:

@JaredBusch said in Got a Pi:

So where does everyone buy their Pi from?

I'm a fan of Adafruit, Element 14, and Jamco Electronics, Mouser, and Digikey myself.

I believe the Pi is sold but adafruit through Amazon. Adafruit is so slow, because they get so many orders, but through amazon they offer prime shipping.

So the consensus was a Pi3. I assume I need power and a case.

You can see above that all I have is the UPS, router, and cable modem. So I need to get power from 110 converted down to the Pi3 and a case to hold it all.

Pi3 is overkill. Like buying an Intel Xeon 1250v3 for mspaint.exe. A Zero with a USB network dongle should do. Or any Linux-capable ARM board with an ethernet socket.

For the powersupply: What about some old smartphone charger?

Put what is the cost for all of that.

A Pi3 has WiFi built in. Ethernet will not work as there is not LAN in many of these locations. Really that was the only reason for the Pi3.

Pi Zero $5

Plug and play USB ethernet: $3.07 & FREE Shipping (Amazon)

vs

Pi3 $35 + higher power consumption

Don't forget the $7-10 shipping cost for the zero since you cant buy it on amazon.

Would probably buy 20 or more at once, as far as I remember @JaredBusch plans to deploy lots of them.

I dunnno about 20 at once, but yeah. a number of them.

right now they are limiting one customer to one zero. You can't buy multiples at this point.

thwr

@IRJ said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@IRJ said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

Re: Got a Pi

@IRJ said in Got a Pi:

@travisdh1 said in Got a Pi:

@JaredBusch said in Got a Pi:

So where does everyone buy their Pi from?

I'm a fan of Adafruit, Element 14, and Jamco Electronics, Mouser, and Digikey myself.

I believe the Pi is sold but adafruit through Amazon. Adafruit is so slow, because they get so many orders, but through amazon they offer prime shipping.

So the consensus was a Pi3. I assume I need power and a case.

You can see above that all I have is the UPS, router, and cable modem. So I need to get power from 110 converted down to the Pi3 and a case to hold it all.

Pi3 is overkill. Like buying an Intel Xeon 1250v3 for mspaint.exe. A Zero with a USB network dongle should do. Or any Linux-capable ARM board with an ethernet socket.

For the powersupply: What about some old smartphone charger?

Put what is the cost for all of that.

A Pi3 has WiFi built in. Ethernet will not work as there is not LAN in many of these locations. Really that was the only reason for the Pi3.

Pi Zero $5

Plug and play USB ethernet: $3.07 & FREE Shipping (Amazon)

vs

Pi3 $35 + higher power consumption

Don't forget the $7-10 shipping cost for the zero since you cant buy it on amazon.

Would probably buy 20 or more at once, as far as I remember @JaredBusch plans to deploy lots of them.

well that is a different story if you deploying many at once.

Yup. And then its (raw material, no case, no power supply, no SD card, no shipping included) $35 vs $8 per piece.

thwr

@IRJ said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@IRJ said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

Re: Got a Pi

@IRJ said in Got a Pi:

@travisdh1 said in Got a Pi:

@JaredBusch said in Got a Pi:

So where does everyone buy their Pi from?

I'm a fan of Adafruit, Element 14, and Jamco Electronics, Mouser, and Digikey myself.

I believe the Pi is sold but adafruit through Amazon. Adafruit is so slow, because they get so many orders, but through amazon they offer prime shipping.

So the consensus was a Pi3. I assume I need power and a case.

You can see above that all I have is the UPS, router, and cable modem. So I need to get power from 110 converted down to the Pi3 and a case to hold it all.

Pi3 is overkill. Like buying an Intel Xeon 1250v3 for mspaint.exe. A Zero with a USB network dongle should do. Or any Linux-capable ARM board with an ethernet socket.

For the powersupply: What about some old smartphone charger?

Put what is the cost for all of that.

A Pi3 has WiFi built in. Ethernet will not work as there is not LAN in many of these locations. Really that was the only reason for the Pi3.

Pi Zero $5

Plug and play USB ethernet: $3.07 & FREE Shipping (Amazon)

vs

Pi3 $35 + higher power consumption

Don't forget the $7-10 shipping cost for the zero since you cant buy it on amazon.

Would probably buy 20 or more at once, as far as I remember @JaredBusch plans to deploy lots of them.

I dunnno about 20 at once, but yeah. a number of them.

right now they are limiting one customer to one zero. You can't buy multiples at this point.

They still do?

IRJ

@thwr said in Pi as a UPS monitor:

@IRJ said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@IRJ said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

Re: Got a Pi

@IRJ said in Got a Pi:

@travisdh1 said in Got a Pi:

@JaredBusch said in Got a Pi:

So where does everyone buy their Pi from?

I'm a fan of Adafruit, Element 14, and Jamco Electronics, Mouser, and Digikey myself.

I believe the Pi is sold but adafruit through Amazon. Adafruit is so slow, because they get so many orders, but through amazon they offer prime shipping.

So the consensus was a Pi3. I assume I need power and a case.

You can see above that all I have is the UPS, router, and cable modem. So I need to get power from 110 converted down to the Pi3 and a case to hold it all.

Pi3 is overkill. Like buying an Intel Xeon 1250v3 for mspaint.exe. A Zero with a USB network dongle should do. Or any Linux-capable ARM board with an ethernet socket.

For the powersupply: What about some old smartphone charger?

Put what is the cost for all of that.

A Pi3 has WiFi built in. Ethernet will not work as there is not LAN in many of these locations. Really that was the only reason for the Pi3.

Pi Zero $5

Plug and play USB ethernet: $3.07 & FREE Shipping (Amazon)

vs

Pi3 $35 + higher power consumption

Don't forget the $7-10 shipping cost for the zero since you cant buy it on amazon.

Would probably buy 20 or more at once, as far as I remember @JaredBusch plans to deploy lots of them.

I dunnno about 20 at once, but yeah. a number of them.

right now they are limiting one customer to one zero. You can't buy multiples at this point.

They still do?

They did when I ordered mine a few weeks ago

MattSpeller

Just get the Pi3 - sure it's overkill but an extra twenty bucks is a rounding error compared to your time costs etc.

thwr

@IRJ said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@IRJ said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@IRJ said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

Re: Got a Pi

@IRJ said in Got a Pi:

@travisdh1 said in Got a Pi:

@JaredBusch said in Got a Pi:

So where does everyone buy their Pi from?

I'm a fan of Adafruit, Element 14, and Jamco Electronics, Mouser, and Digikey myself.

I believe the Pi is sold but adafruit through Amazon. Adafruit is so slow, because they get so many orders, but through amazon they offer prime shipping.

So the consensus was a Pi3. I assume I need power and a case.

You can see above that all I have is the UPS, router, and cable modem. So I need to get power from 110 converted down to the Pi3 and a case to hold it all.

Pi3 is overkill. Like buying an Intel Xeon 1250v3 for mspaint.exe. A Zero with a USB network dongle should do. Or any Linux-capable ARM board with an ethernet socket.

For the powersupply: What about some old smartphone charger?

Put what is the cost for all of that.

A Pi3 has WiFi built in. Ethernet will not work as there is not LAN in many of these locations. Really that was the only reason for the Pi3.

Pi Zero $5

Plug and play USB ethernet: $3.07 & FREE Shipping (Amazon)

vs

Pi3 $35 + higher power consumption

Don't forget the $7-10 shipping cost for the zero since you cant buy it on amazon.

Would probably buy 20 or more at once, as far as I remember @JaredBusch plans to deploy lots of them.

I dunnno about 20 at once, but yeah. a number of them.

right now they are limiting one customer to one zero. You can't buy multiples at this point.

They still do?

They did when I ordered mine a few weeks ago

Uhm, wasn't aware. That sucks. But there are other cheap boards out there

@IRJ said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@IRJ said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@IRJ said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

@thwr said in Pi as a UPS monitor:

@JaredBusch said in Pi as a UPS monitor:

Re: Got a Pi

@IRJ said in Got a Pi:

@travisdh1 said in Got a Pi:

@JaredBusch said in Got a Pi:

So where does everyone buy their Pi from?

I'm a fan of Adafruit, Element 14, and Jamco Electronics, Mouser, and Digikey myself.

I believe the Pi is sold but adafruit through Amazon. Adafruit is so slow, because they get so many orders, but through amazon they offer prime shipping.

So the consensus was a Pi3. I assume I need power and a case.

You can see above that all I have is the UPS, router, and cable modem. So I need to get power from 110 converted down to the Pi3 and a case to hold it all.

Pi3 is overkill. Like buying an Intel Xeon 1250v3 for mspaint.exe. A Zero with a USB network dongle should do. Or any Linux-capable ARM board with an ethernet socket.

For the powersupply: What about some old smartphone charger?

Put what is the cost for all of that.

A Pi3 has WiFi built in. Ethernet will not work as there is not LAN in many of these locations. Really that was the only reason for the Pi3.

Pi Zero $5

Plug and play USB ethernet: $3.07 & FREE Shipping (Amazon)

vs

Pi3 $35 + higher power consumption

Don't forget the $7-10 shipping cost for the zero since you cant buy it on amazon.

Would probably buy 20 or more at once, as far as I remember @JaredBusch plans to deploy lots of them.

I dunnno about 20 at once, but yeah. a number of them.

right now they are limiting one customer to one zero. You can't buy multiples at this point.

They still do?

They did when I ordered mine a few weeks ago

a CHIP might be a good alternative. Has 4GB internal storage and (but no ethernet) for $9, so you don't even need an microSD card

http://www.board-db.org/search.php?advanced=1&q=&ram_min=256&cpu_speed_min=&cpu_cores=&price_min=&price_max=10&storage_min=4096&gpio_min=&usb_min=1&type=&lan_speed=0#results