@maeterlinck said in Wifi Module Issue - Failed to get Wifi Status:
Update to this: we have replaced the flip flop next to the ESP module - U12 (HC74). This appears to have resolved the problem.
I'm glad you solved it - although I am surprised that the 74HC74 failed. I guess there is always a first time.
The reason for the 74HC74 is that when we designed the Duet WiFi, documentation for the ESP8266 was almost non-existent. In particular, there was no information on whether the chip supported edge-triggered interrupts, or how to program them. So the purpose of the 74HC74 is that after the Duet main processor signals to the WiFi module that it is ready for a data transfer, once the transfer has started then that request is removed, to guard against another transfer being initiated before the main processor is ready for a new one.
I'll mark this as solved.