RT5350F board update


We got heap of good tips and suggestions about RT5350F some posted on the blog more by e-mails. Thanks guys!

What we also saw is that all these devices on the market are just PCBs and missing something important to complete project – plastic enclosure.

So as next step after finishing RT5350F-OLinuXino prototypes and test them will be to try to fit it inside the DB25 plastic shell like PIC-MICRO-WEB:


With just one Ethernet connector and GPIOs and power supply on the 25 pin connector.

And another version with WIFI with external SMA connector on the place of the Ethernet connector, so antenna like this one could be connected:



This way RT5350F-OLinuXino will become much more useful and easy to PLUG-AND-PLAY with simple DB25 connector to other boards

On the DB25 connector there will be UARTs, I2C, I2S, SPI, GPIOs. If we find space we may add I2C ADC as well.

Still is not clear if this will be good solution as we may not have enough space or the RT5350 may not cool well inside plastic box, we will see after we complete first prototypes.


RT5350F-OLinuXino design is almost complete



This one was inspired by the VoCore project which recently ran on Indiegogo.
We have not hear for RT5350F before, but when we saw it we instantly though it’s good candidate for tiny OLinuXino.
RT5350 is nice small MIPS architecture chip running on 360Mhz and specially made for routers.
It have build-in 802.11n WIFI, 5x 10/100 Ethernet MAC+PHYs, 28x GPIOs, 2x UARTs, 1xSPI and 1x I2C.
Perfect for IoT tiny Linux running board collecting data from sensors and logging or sending it to the Cloud.

What we like in VoCore is that they commit to release it as OSHW design, but the schematic they made available on their page have few significant errors compared to the reference design from Ralink, if these errors are intentional or not we do not know, but the schematic they publish will not work for sure and this is not so good sign 🙂

Another thing is that they decide to use 32MB RAM while the chip can support more, and to make size as small as possible they didn’t break out all Ethernet interfaces.

Also they decided to use chip antenna, which are well known with their bad performance, so probably their design will be with very limited WIFI range.

This is why we decided to make it properly and our preliminary schematic is now complete.

Our version is with 64MB of RAM, 8MB Flash and all RT5350F pins are available on 2x 34 pin 0.1″ step connectors.

We put proven design for PCB antenna + option for external antenna on connector.

The PCB size become 40×40 mm vs. 25 x 25 mm but we think the benefits are more compared to the bigger size.

We probably will have the first prototypes in September taking into account our Summer Break 1-15 of August.

The price of RT5350F-OLinuXino module will be EUR 15 for single quantities and will drop to EUR 10 for 1000 pcs. i.e. less than Arduino but with 64MB RAM, Linux and WIFI on board!

PIC32-PINGUINO with MOD-WIFI controlled by Android IoT



Roberto Bacerra made interesting project. With PIC32-Pinguino and MOD-WIFi he creates wireless node and  he wrote small app for Android which can connect to it and control it.

All sources are in DropBox together with the Android app.


New A13-SOM-LTE design on GitHub



What you see on the picture above is A13-SOM-LTE shield which enables 100 Mbit 4G Internet access to A13-SOM.

The LTE shield is specially designed for 4G module from partner we work with. This is the first prototype and some tests should be completed but it’s matter of weeks or months these modules to be released. We still have no price on the 4G module as these are very new but we are assured to have them on the very low cost, so with A13-SOM to enable wearable cloud technology.

100Mbit is enough to listen music, watch videos, log large amounts of data to cloud storage.


A13-SOM-LTE shield is OSHW, the schematic and CAD files are on GitHub.


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