I've used LANTRONIX WiFi modules in the past. Well engineered and documented.
I noticed on Circuit Cellar's newsletter that the LANTRONIX xPico WiFi module is out and is $39.
Like their prior modules, you can optionally connect an RJ45 for Ethernet, or config via one of its two serial ports.
In operation, it looks like both serial ports (up to 900Kbps) can connect to your devices. And 8 bits of GPIO.
Has an ARM CPU. There's also mention of an SPI port to access the device's flash storage. In past projects, you could upload web pages to the device.
Some brave souls have learned how to add their own code to their similar older devices; maybe this is the same.
user guide
http://www.lantronix.com/pdf/xPico_UG.pdf
I noticed on Circuit Cellar's newsletter that the LANTRONIX xPico WiFi module is out and is $39.
Like their prior modules, you can optionally connect an RJ45 for Ethernet, or config via one of its two serial ports.
In operation, it looks like both serial ports (up to 900Kbps) can connect to your devices. And 8 bits of GPIO.
Has an ARM CPU. There's also mention of an SPI port to access the device's flash storage. In past projects, you could upload web pages to the device.
Some brave souls have learned how to add their own code to their similar older devices; maybe this is the same.
user guide
http://www.lantronix.com/pdf/xPico_UG.pdf