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ESP8266 core for Arduino
GNU Lesser General Public License v2.1
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Esp8266 W5100 ethernet not working #2924

Closed littleoz2 closed 6 years ago

littleoz2 commented 7 years ago

Ethernet.begin returns 0 after a few minutes, doesn't get an IP address

littleoz2 commented 7 years ago

I'm using a NodeMCU board with an ESP-12E on it

capolan commented 7 years ago

Hi, I'm also have this problem, with nodemcu v3 wemos with ethershield w5100. There is no way get IP, nether fixed IP. It stucks on Ethernet.Begin(mac) like littleoz2;

The link below shows differecences between NodeMCU versions. http://frightanic.com/iot/comparison-of-esp8266-nodemcu-development-boards/

The connetions is as follows SPI on nodemcu ethershield ISCP D5 SCK GPIO14 --> pin 3 D6 MISO GPIO 12 --> pin 1 D7 MOSI GPIO13 --> pin 4 D8 SS GPGIO 15 --> digital pin 10 on shield VV --> pin 2 VCC 5v ISCP GND --> pin 8 GND ISCP

VV = power from USB, there is no external power for shield (it draws only 150mA).

The shield works fine on arduino mega2560, nut not on nodeMCU. On nodeMCU the RX/TX stay off, and the other keep ok. The ethernet connector ligths on.

What am i doing wrong ?

StaffMark commented 7 years ago

Hi,

I test with Nodemmcu v.1 and TOP Mini W5100 LAN Ethernet Shield.

DHCP work fine: "My IP address: 192.168.100.39" (tested witch DhcpAddressPrinter example)

I have a problem with UDPSendReceivedString... If test with example port 8888 work fine, but if change port to 3009 not work.

Is possible EthernetUdp have an error?

JamesGKent commented 7 years ago

not using ethernet, but using the ESP wifi i found i could not get UDP to work with a port number lower of 4096 or below, only 4097 and higher worked, maybe try that?

StaffMark commented 7 years ago

Hi James, yes i tested with UDP port 8887 and not work with ethernet class... I use ESPwifi and UDP ports 3008,3009,3010,5011 UDP and work fine.

devyte commented 6 years ago

Closing due to age and lack of info. If there is still a problem, please open a new issue and fill in the requested fields.