REVIEW: Sure electronics WiFi web server module
We covered Sure’s WIFI web server module previously. This board has a MRF24WB0MB wireless module and a PIC24FJ256GB106 with USB (host and slave) capabilities. As a bonus the board also has a mini-sd connector for storing webpages. At a first glance the board looks very clean and well designed with a nice silkscreen. Cost was $59.90 plus shipping.
The package also contains a USB cable and an external antenna. The quality of the external antenna is a bit poor, but it will probably perform better than the PCB antenna. Both the usb connector and the mini-sd slot are mounted on the opposite side of the PCB antenna. Sure provides a modification guide for choosing between internal and external antenna. We didn’t try it, but it looks easy with a hot airtool and soldering iron.
After unboxing it is time to power up and see how it performs. We wrote the webserver files to a flash card and powered up the board by plugging in the USB cable. On our board the USB receptacle could barely hold the usb connector, but for prototyping it will serve. We mailed them about the problems we found, and they promised a gift on our next order. We’ve been promised gifts before, and we’re still waiting for it to arrive…
Review continues below.
MOSI --> RxD MISO --> TxD GND --> GND Vpu --+ | 3V3 <-+
A serial UART is used to configure the wireless settings, we used our trusty Bus Pirate. Don’t get fooled by the silkscreen that says 5v and use this as pullup voltage! After we saw the schematic of this board (just recently added to the Sure Electronics download page) we found out it is input only.
We are using WPA2-phrase as encryption on our accesspoint, which took a while to calculate by the WiFi module. In order to speed thing up, we found this page to convert it and offload the processor on the WiFi module.
We discovered the unit IP address on the serial console but used the Netbios name to browse its internal pages. The internal page toggles the 4 LEDs and displays the temperature.
Overall is the board ok, but we like to see the unused pins broken out. Soon we’ll open a topic in our forum to display the progress with this board, where we try to control digital cams through WiFi.This entry was posted in Bus Pirate, dev boards, wireless and tagged development boards, Sure, WiFi.