Iboard is a unique Arduino board which features a WIZnet ethernet port, an XBee socket, nRF24L01+ module interface and an ATMega328. This board will add wireless XBee / nRF24L01+ control as well as internet connectivity to your projects. It`s great for anything from home automation to robot control. The possibilities are endless!
Iboard can be used as an Ethernet, wireless communication project development platform. Iboard support POE (power on Ethernet) power supply, and Micro SD for mass storage. There are some 3pin electronic brick / sensor brick interface breakout on board, it offers an easy way for a quick prototyping. You can setup a web server through which you may communicate with a remote Arduino using XBee radios, bluetooth or APC modules. This information can be posted to a web site, or to Twitter.
The board requires FTDI basic board to upload sketch, you can use our Foca board to do it. Iboard can be powered by a mini USB , power Jack or POE.
Please visit our wiki page for more info about this product. It will be appreciated if you can help us improve the documents by correcting the errors, adding more demo codes or tutorials.
For technical support, please open a ticket on Itead Support System.
|External Resources||Electronic Brick Interface|
|I/O Operation Level||3.3V|
|Board Size||80mm x 54mm|
The Quality of the board looks good, but there is a design issue on the board.
To program the AVR over ISP, I had to add an extra pull-up resistor at pin 14 of the AVR.
For me, as an experienced electronic designer, it wasn't a big deal to find that problem, but it could be a real trap for a beginner.
I like this board for good combination of integrated Ethernet controller, small size and low price. I have used two of this boards in my DIY project already and mostly happy with it. But the biggest disadvantage of the board for me is a passive POE. It is NOT a standard compatible IEEE 802.3af/af POE and you can NOT use standard POE equipment (like a commercially available POE switches) to integrate this board in standard infrastructure. But you have to use a separate power supply and Passive POE injector to power the board. Or cut some wires on PCB by yourself and re-solder a different POE Ethernet connector and add POE PD power supply module. Not so easy and nice solution but a way to use the board in standard infrastructure. Or, stupid way, you can add POE splitter to your setup at point of use and do not use POE feature of board at all. I like to see a version of the board with a standard compatible IEEE 802.3af/af POE. This will increase a price for sure but a value also.
The quality of this board is pretty good. This board is fully compatible with the arduino Ethernet library. I use the Foca board to upload sketches without any problem (as a Diecimila board in Arduino IDE).
Some details on the PoE functionality: It is not 802.3af compliant. The power is delivered on the 4-5 (+) and 7-8 (-) pairs (as 802.3af mode B). The input voltage range on these pairs is the same as for the external power supply : 6-24v and not 48v as requested for 802.3af. I use a passive PoE injector like this one https://linitx.com/product/16-port-passive-poe-injector-rackmount-panel-2555mm-dc-socket/13546 and a 6V power supply to inject power on 6 IBoards.
I like the board and is almost a perfect fit for one of my projects but one of the things I can't understands is why the nRF24L01+ pins (MOSI, MISO and SCK pins) are not connected to the hardware SPI of the Atmega328??
What this means is that you can only use the nRF24L01+ library linked to above and you loose 3 digital pins. To use any of the other libraries like I am forced to you need to either use a few jumper wires to the ISP connector (that is luckily not too far away).
I am going to have to make a daughter board to break out the hardware SPI pins for the nRF24L01 and give access to the 3 extra digital pins freed up in the process.
The docs for this are not great. There is no diagram showing the pins on the board.
The only example sketch doesn't work with 1.0+ arduino software
Trying to figure out how the SD card is attached so you can use Arduino examples is nearly impossible, perhaps a hard core electronics person could figure it out from the Schematic but the average person cannot.
Also I have yet to get it to work with their Foca USB adapter, but have managed to program it using the adapter that came with my Lilypad, but the pins are different so it takes using jumper wires to connect it.
But I did have some success using the wiznet libs and have manged to make it work and it is a great value for the price