Microcontroller with Ethernet suggestions?

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nfolken

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Sep 29, 2015, 4:24:35 PM9/29/15
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I am kind of surprised that there isn't a widespread Ethernet equivalent of the ESP8266. It seems like such overkill to use a raspberry pi just to ping and flip a relay. Does anyone know of a simple, low cost board with both networking and a PIC or AVR?

Nathan Schrenk

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Sep 29, 2015, 5:44:51 PM9/29/15
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I tried looking for something like this a while back and most of the microcontroller boards I found that had Ethernet MAC/PHY/jack on them cost either the same or more than a Raspberry Pi. Mostly much more. I was hoping to find something for $10 but failed.

I found this one TI LaunchPad board EK-TM4C1294XL that is slightly less than an Raspberry Pi at $19.99: http://www.ti.com/ww/en/launchpad/launchpads-connected-ek-tm4c1294xl.html

When C.H.I.P. starts shipping it'll be a $9 board that includes WiFi and Bluetooth: https://www.kickstarter.com/projects/1598272670/chip-the-worlds-first-9-computer/description




On Tue, Sep 29, 2015 at 3:24 PM, nfolken <niels...@gmail.com> wrote:
I am kind of surprised that there isn't a widespread Ethernet equivalent of the ESP8266. It seems like such overkill to use a raspberry pi just to ping and flip a relay. Does anyone know of a simple, low cost board with both networking and a PIC or AVR?

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Travis Megee

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Sep 29, 2015, 5:52:06 PM9/29/15
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Definitely not a AIO like you want but I always use a ENC28J60 with my uc whenever I need network connectivity for a project.

Travis

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EschewObfuscation

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Sep 29, 2015, 6:00:03 PM9/29/15
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Something like this? You likely get only a raw packet, have to write or find a library for higher level protocols.

Nathan Schrenk

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Sep 29, 2015, 8:49:20 PM9/29/15
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That is just the add-on board: you need a separate microcontroller and then connect this. I think he was looking for a single board with both Ethernet and microcontroller on it.

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EschewObfuscation

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Sep 30, 2015, 12:25:48 AM9/30/15
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True; if two miniboards stuck together won't do, someone probably sells one board with both chips on it.

nfolken

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Sep 30, 2015, 10:43:03 AM9/30/15
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The ENC28J60 is also what I have been looking at. I was thinking of pairing it with an adafruit trinket, but the ATTiny doesn't have enough memory to run a software TCP/IP stack. There are PIC microcontrollers with TCP/IP built in, but I can't find any easy-to-use development boards that use it.

Travis Megee

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Sep 30, 2015, 11:04:34 AM9/30/15
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At that point its easier to use a WizNet module to offload but definitely not cheaper.

Travis

On Wed, Sep 30, 2015 at 9:43 AM, nfolken <niels...@gmail.com> wrote:
The ENC28J60 is also what I have been looking at. I was thinking of pairing it with an adafruit trinket, but the ATTiny doesn't have enough memory to run a software TCP/IP stack. There are PIC microcontrollers with TCP/IP built in, but I can't find any easy-to-use development boards that use it.

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Chris Weiss

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Sep 30, 2015, 11:28:20 AM9/30/15
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an arduino Pro Mini clone is cheap and abut the same size as the ENC module, and can be hand in 8Mhz 3.3V for low power.

nfolken

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Oct 1, 2015, 2:35:38 PM10/1/15
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Pro mini + ENC28J60 from china is about $7, which is just what I'm looking for. Only problem is that the pro-mini can only supply 150mA of 3.3v, and the ENC28J60 needs anywhere up to 200mA, so I'll need another regulator to power it.

Chris Weiss

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Oct 1, 2015, 2:56:02 PM10/1/15
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even the 3.3V pro mini?

Bob S.

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Oct 9, 2015, 2:44:06 PM10/9/15
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Have you seen it in a shield?


Looks like a plug and play solutions... 
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