AZDeliver ESP826612F Piezo Buzzer

Other Hardware 3rd Party Boards
1

Hi am working on a project that uses two ESP8266 units. One has a sensor on it that when activated will notify the other using the WIFI feature. the second ESp8266 will make a sound when the signal is received.

I have fallen at the first hurdle as I cannot get my second ESp8266 to talk to the buzzer. I have a very simple hobbiest piezo buzzer and have wired it D8 to positive on the controller and GR to negative. I have then taken the code from this example and uploaded the sketch:

ESP8266 - Piezo Buzzer | ESP8266 Tutorial (newbiely.com)

When I reset or plug in the blue light flashes, but nothing at all from the buzzer.

I have done exactly the same with an Arduino UNO and it works fine, it makes its little tune and all is well.

I figured maybe the controller is dead, but I have another sketch the connects it my my WIFI and that works ok. (I have 3 of these little controllers and they all do the same).

Can anyone offer any advice??

2

No problem, post an annotated schematic showing exactly how you have wired it. The two processors you are using are electrically different and that is possibly your problem.

3

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.