Is the Progressive Automations Model: LC058 WIFI Shield compatible with the MEGA 2560?
If not, what WIFI Shield (that is not obsolete) is compatible with the MEGA 2560?
TIA
It's a good idea to post a link to some information on the shield. Most of us will not be familiar off-hand with that shield just from the name but might be able to provide advice after a quick look at the product page or a datasheet . Please use the chain links icon on the toolbar when you post a link to make it clickable.
The reason some shields made for Uno are not compatible with Mega is the SPI pins are on different pins on the Mega. That will only affect shields that use SPI for communicaton with the Arduino. It's possible to make a shield that is compatible with either by connecting the SPI pins on the ICSP header, which is standard on any board.
The cheapest and most commonly used WiFi shield these days are the ones with the ESP8266 on them. Since they use serial on pins 0 and 1 they are compatible with any board. They seem to be a bit difficult for some people to get working (search the forum for "ESP8266 shield" and you'll find the threads) but those same folks might have had problems with other shields. I've used them without any problems.
That's the official Arduino WiFi Shield:
https://www.arduino.cc/en/Main/ArduinoWiFiShield
Progressive Automations just sells it. It is Mega compatible:
Arduino communicates with both the Wifi shield's processor and SD card using the SPI bus (through the ICSP header). This is on digital pins 11, 12, and 13 on the Uno and pins 50, 51, and 52 on the Mega. On both boards, pin 10 is used to select the HDG204 and pin 4 for the SD card. These pins cannot be used for general I/O. On the Mega, the hardware SS pin, 53, is not used to select either the HDG204 or the SD card, but it must be kept as an output or the SPI interface won't work.
Retired!!!
I use this:
With this:
https://www.amazon.com/gp/product/B07B1X6LSF/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1
With this library:
...and the ESP8266 has been flashed with
Yes, lots of steps...but it is cheap, fast, reliable and supported by current development.