Would anyone out there happen to have a schematic for the Flamingo EDA (2009) version of the Arduino Ethernet Shield V1.1 as shown in the following image?
The reason for my request; I have a number of Microduino-ENC28J60/Microduino-RJ45 modules gathering dust that purport to be Arduino compatible but don't work with commonly available Arduino Ethernet libraries.
http://wiki.microduinoinc.com/Microduino-Module_Ethernet,ENC
http://wiki.microduinoinc.com/Microduino-Module_RJ45
I'm keen to find out what differences in the schematics between the two devices enables an Arduino UNO/Arduino Ethernet Shield V1.1 combination to successfully implement a simple MQTT controller application, as per the example here:
but the same code will not work with the Microduino-ENC28J60/Microduino-RJ45 modules combination.
My journey so far:
The two Microduino modules work coupled together, with one board containing the RJ45 connector and the other the ENC28J60 chip. However, as I mentioned above, although these modules claim to be Arduino compatible I have never managed to get any of them to work using commonly available Arduino Ethernet libraries..
Recently I realised I also had an old (2008) vintage Flamingo EDA Arduino Ethernet Shield V1.1 gathering dust, which, presumably, had a schematic very similar to the Microduino modules. And, using the Instructables guide referenced above, I had little difficulty getting this old shield to work with an Arduino UNO and applying it as an effective garage door controller.
Heartened by this I attempted to emulate the UNO/Ethernet Shield V1.1 combination success with the Microduino modules but no go. But I did find that inserting the Ethernet V1.1 Shield into a Microduino-Shield UNO fitted with a Microduino-Core module:
http://wiki.microduinoinc.com/Microduino-Shield_UNO
http://wiki.microduinoinc.com/Microduino-Module_Core
and running identical firmware to the UNO/Ethernet Shield V1.1 combination, also worked.
Given I have many Microduino-ENC28J60/Microduino-RJ45 modules and only one Ethernet Shield V1.1 card, I began to try and fathom why the Microduino Ethernet modules would not function. However, while I have the schematics for the Microduino-ENC28J60/Microduino-RJ45 modules I've been unable able to access off the Internet a schematic of the Arduino Ethernet Shield V1.1 board.