How do I send GPIO variables to another Pi? [closed]

Question

Closed. This question needs details or clarity. It is not currently accepting answers.

---

Want to improve this question? As written, this question is lacking some of the information it needs to be answered. If the author adds details in comments, consider editing them into the question. Once there's sufficient detail to answer, vote to reopen the question.

Closed 8 years ago.

Improve this question

I am very inexperienced with Python. I have two Raspberry Pi computers and want to use them in a robot design. I want a program that creates a WiFi network and broadcasts variables taken from the GPIO pins on that WiFi network. I want the other one to read those broadcast variables and output them to the GPIO pins. This would basically be a TX/RX program that uses WiFi. Bluetooth would also be an option as both of the PIs in the design are going to be Bluetooth ready.

• Ghanima: Welcome to Raspberry Pi! Please take the tour and visit the helpcenter to see how things work here.
• Ghanima: Related and possible dupe: raspberrypi.stackexchange.com/q/32816/19949
• angussidney: Possible duplicate of send gpio commands from rpi python script to another rpi

Answer 1

pidpgiod is a utility which launches the pigpio library as a daemon.

Once launched the pigpio library runs in the background accepting commands from the pipe and socket interfaces.

In other words it allows control of the GPIO on multiple networked Pis by running the pigpio daemon on each of them. Utilizing sockets (Layer 4: Transport Layer) that should be rather independent of the underlying network architecture, be that ethernet or Bluetooth.