If you absolutely have to have WiFi, then you might consider the raspi, since it is cheaper.
But...cost on it is going to be ~$50. ($35 + $12 for a wifi chip). That's getting close to the cost of the wifi shield, and if you already know the arduino platform, then I would stick with it.
I don't know, for instance, if PWM is yet support on the raspi (or ever will be, since it's not an RTOS)
But...cost on it is going to be ~$50. ($35 + $12 for a wifi chip). That's getting close to the cost of the wifi shield, and if you already know the arduino platform, then I would stick with it.
I don't know, for instance, if PWM is yet support on the raspi (or ever will be, since it's not an RTOS)