Thanks for the reply, Bulldog! Fortunately, I don’t need to implement a cellular connection…at least not for the first go round. The plan is to simply implement a UART to WiFi bridge to connect another (rather dumb) embedded microcontroller device to a WiFi network, so that a PC on the same network can exchange fairly short messages with the device. One could think of it as using the Photon as a simple WiFi adapter, like the Lantronix WiPort, the GridConnect HF-A11 or about a couple dozen similar products.
I was able to find code to do this with an Espressif ESP8285, another WiFi enabled microcontroller with which you may be familiar. It even occurred to me to try to build that code for the Photon and see how many gazillion errors I got, but that sounded a bit too much like despairation
In any case, thanks much for the assistance.
Eugenio