WiFi Shield

Created Mon, 19 Dec 2011 11:47:49 +0000 by abotics

abotics

Mon, 19 Dec 2011 11:47:49 +0000

I have been working on a WiFi shield and recently received the production-level boards. The design is based around the RN-XV WiFi module from Roving Networks. I added the connections for a high-efficiency RECOM +3.3 V regulator for those who might not be using Open-Robot. There are (4) light sensors that feed into the UNO32's A/D capable pins. A pair of jumpers, J1 & J3, allow the RN-XV to be connected to either U1 or U2 on the UNO32. Jumper J4 allows for booting the RN-XV in Ad-Hoc mode, so that it can be configured wirelessly. I am hoping to start selling these WiFi boards in the near future. They will be offered with my UNO-32 based Open-Robot and separately as a stand-alone board for use with the UNO-32.

Regards, Abe

EmbeddedMan

Mon, 19 Dec 2011 14:00:04 +0000

Abe, that looks awesome. The more viable WiFi shields out there, the better. And even cooler is your Open Robot. Nice job-

*Brian

KM6VV

Mon, 19 Dec 2011 19:21:03 +0000

Yeah nice 'bot Abe!

Alan KM6VV

abotics

Tue, 20 Dec 2011 12:24:00 +0000

Guys, thanks for the positive feedback. The next add-on board I work on will be either for RFID or a low-cost camera. Still working hard to get the robot & Wifi stuff released for purchase on 1/2/2012.

Regards, Abe

abotics

Sat, 24 Dec 2011 23:36:42 +0000

Below is an image of the new WiFi board with the high-efficiency, 1A, +3.3V regulator.

Abe

MGLSOFT

Mon, 26 Dec 2011 11:23:19 +0000

Congratulations! Can be used with the chipkit Max32 board ?

abotics

Mon, 26 Dec 2011 13:31:06 +0000

MGLSOFT, I have not worked with the MAX32 board, but after looking through the Digilent documentation it appears that you would have access to U1ARX, U1ATX, RG12 & RG13. It looks like U1ARX & U1ATX are connected to the FTDI USB chip and are used for receiving new programs from the MPIDE. You could leverage RG12 & RG13 as a software UART. Another option would be to install the 2-pin header on the top side of the WiFi PCB and then connect to one of the other hardware UARTs on the MAX32 board using a pair of wires and crimp connectors.The COMMUNICATION header on the MAX32 board exposes the U3A & U3B UARTs.

http://www.digilentinc.com/Data/Products/CHIPKIT-MAX32/chipKIT%20Max32_bysa_sch.pdf

Regards, Abe

abotics

Mon, 26 Dec 2011 13:36:55 +0000

MGLSOFT, I've attached an image below explaining which pins I'd invert and then connect to either U3A or U3B.

Abe

MGLSOFT

Mon, 26 Dec 2011 21:07:15 +0000

Ok, thanks !!