Keypad status for ESP32?

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chris.willing
I'm trying to use the keypad module without success. The recommended:
```
require("KeyPad").connect([B2,B3,B4,B5],[B6,B7,B8,B9], function(e) {
  print("123A456B789C*0#D"[e]);
});
```
is never called back.

I also tried
```
var keypad = require("KeyPad").connect([B2,B3,B4,B5],[B6,B7,B8,B9]);
```
and printed output of keypad.read() in a while loop. This produced output like 38 28 08 312 212 012 etc. depending on the key pressed.

I tested the same keypad using the same pin connections on the same device in an arduino sketch where it worked perfectly.

Anyway, since there was at least some output, I was going to start hacking on the source code but in the meantime, is anyone using a keypad successfully?

Thanks for any pointers ...

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