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February 5, 2012
Retired university lecturer
Tutorial - WiFly Shield Hookup Guide
about 3 months ago
Just got my WiFly going again after a three year absence. Congratulations to Sparkfun on an excellent step-by step Hookup Guide - much better than it used to be. Just a remark here that might help others: I wasted a lot of time with the WiFly_RGB_LED_Server until I realised that my browser was blocking traffic between my laptop and the WiFly shield. Otherwise it would have worked first time. Thought number 2: the WiFly_RGB_LED_Server is rather slow. It takes about 12-15s from clicking say the Red button until the LED lights up. There is obviously a lot of slack here. For a previous server of mine the delay was only 3s but I was using an older library and the structure of my software was different. Thought number 3: It is possible to remove your router from the network by programming the RN-131C chip to operate as an “ad-hoc network” with a fixed IP address. This is easily done by following the Instructables website. You can then control your WiFly from a mobile phone, though there seems to be a problem with phones having the Android operating system.
about 3 years ago
Here is my second question since my previous comment was cut short.
Why doesn’t the newest Wifly library, WiFly-20101217-alpha-2 compile immediately “straight out of the box”? I tried to compile Wifly_WebServer.pde but get various errors such as ‘SpiUartDevice’ does not name a type.
I have just bought the WiFly shield and got it working (more or less) with my Arduino Uno using some of the software provided by Chris Taylor.
Now I have two questions that I would be grateful for help with:
1) In the definitions of the addresses of the SC161S750 uart bridge, why are they left-shifted in the #define section
e.g. #define LSR 0x05 ?
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