How to make a simple Arduino wireless shield

There’s always the need for cheaper Arduino equipment and there’s always the need for wireless activities in your project. But an Arduino wireless shield costs much. Everyone of us has got an ethernet shield. They are good but not wireless. Well. Let’s see if we can improve this. At first you need an ethernet shield and a wireless router TL-WR702N. (both 30-35€ that’s half as much as the wireless shield here in Germany costs)

TL-wr702n

Take a millfile and carefully abridge the left and the right side about 0.3mm so that the PCB fits backwards between the pinheader on the Arduino.

IMG_0158Take some glue to fix the Router at the pins. Take care of the ethernet connector. It shouldn’t touch anything on the ethernet shield. After that the router should be removable like an Arduino shield.

Power supply: the advantage of this little router is that it works out of the box with 5V.

5V: solder it to the right site of R113 but don’t bridge it.

IMG_0163GND: take a box cutter an scratch the PCB so that you are able to see the blank copper. Now solder GND. Don’t do the same s**t i’ve done to the USB connector. There’s no need to touch the USB connector!

IMG_0162

After that the shield should look like that:

IMG_0161

After that you can power the router with the 5V from the Arduino. The original power supply is rated with 5V at 1A so remind that while choosing the power supply for your Arduino.

Now configure the router by connecting it to your laptop with an ethernet cable, open your browser and open: 192.168.0.254  Login  UN: admin PW: admin

Choose Client mode, router or AP. Just do your favorite settings and do not enable DHCP if the Arduino ethernet shield has a static IP adress. Continue with connecting the ethernet shield with the router with the shortest ethernetcable you have :D or shorten it by yourself. Ready. Your ethernet shield has transformed to a wireless shield. With all the features of the TL-WR702N but it’s removable. :)

If you take the TL-WR703N it’s possible to install open-WRT but it won’t fit on the ethernet shield like the TL-WR702N because of its second USB connector for mass storage. There’s an antenna hack for these routers somewhere on the internet i don’t have a link please use Google.

thanks and have fun trying on your own. :)

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12 thoughts on “How to make a simple Arduino wireless shield

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