Raspberry Pi Examples Please

I have my RPi all working with blynk in that I can do these:
Write a Vpin on the phone into the RPi.
Read back VPins onto my phone
etc.(the simple stuff)
I’d like to extend this but cannot find any examples in C (on the Pi) for these:

  1. example of how to implement a “terminal” widget in C
  2. example of how to implement a “bridge” widget in C
  3. example of how to implement a “timer” widget in C
  4. example of how to implement an “email” widget in C
  5. example of reading a VPin (ie inside an event for pin V1 I’d like to read the value of V2)

All the examples on the RPi (and here) seem to related to arduinos.
Can anyone help/point me in the right direction for examples?
Thanks

And on a similar vein…
I have my (2nd) RPi all working with blynk (using javascript (node.js)) in that I can do these:
Write a Vpin on the phone into the RPi.
Read back VPins onto my phone
etc.(the simple stuff, plus i can implement a terminal)
I’d like to extend this but cannot find any examples in js (on the Pi) for these:

  1. example of how to implement a “bridge” widget in js
  2. example of how to implement a “timer” widget in js
  3. example of how to implement an “email” widget in js
  4. example of reading a VPin (ie inside an event for pin V1 I’d like to read the value of V2)

All the examples on the RPi (and here) don’t seem to have js example (I could be wrong).
Can anyone help/point me in the right direction for examples?
Thanks

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