From 8b536bb2127bad73fda0b97ea7e4614b32e8d795 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?H=C3=A5kon=20L=C3=B8vdal?= Date: Mon, 22 Jan 2018 00:11:23 +0100 Subject: [PATCH] Board_002: Add ethernet information --- Electrical/Board_002/README.md | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/Electrical/Board_002/README.md b/Electrical/Board_002/README.md index cc145ad7..fb820eaa 100644 --- a/Electrical/Board_002/README.md +++ b/Electrical/Board_002/README.md @@ -90,6 +90,19 @@ is the most natural and convinient choice and that if not then apparently MCP2221 needs some additional electronics in order to [work properly as an USB device](https://electronics.stackexchange.com/a/323551/568). +For ethernet the +[ENC28J60](http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en022889) +chip seems to be the +[go](https://www.reddit.com/r/arduino/comments/18pw59/diycheap_ethernet_shields/) +[to](https://www.open-electronics.org/low-cost-ethernet-shield-with-enc28j60/) +[solution](http://www.instructables.com/id/A-credit-card-sized-Ethernet-Arduino-compatable-co/) +[for](https://www.pocketmagic.net/atmega8-and-enc28j60-for-ethernet-support/) +[inexpensive](http://tuxgraphics.org/electronics/200606/article06061.shtml)2 +DYI solutions. It only supports 10Mpbs, but that is more than +good engough for pushing out MQTT messages. It draws a significant +amount of current (~120mA or more) and gets gets hot so it might +need heatsinking, but that is an [inherent problem with all ethernet +controlles](https://electronics.stackexchange.com/questions/52349/why-is-ethernet-so-power-hungry). ------------------- @@ -97,3 +110,8 @@ an USB device](https://electronics.stackexchange.com/a/323551/568). Distrelec](https://www.elfadistrelec.no/en/interface-ic-uart-usb-so-14-microchip-mcp2221-sl/p/11087556), cheaper elsewhere. +2 20-30 NOK for the +[chip](https://www.elfadistrelec.no/search?q=ENC28J60&filter_Category1=&filter_Category1=&filter_Category1=&filter_Category1=&filter_Category1=), +from 30-40 NOK for the +[connector](https://www.elfadistrelec.no/search?q=magjack&filter_Category1=&filter_Category1=&filter_Category1=&filter_Category1=&filter_Category1=&sort=Price:asc&page=1). +