I am creating an app that will run a program on a raspberry pi. Right now, the program outputs everything onto the console and I want to capture that information and display it on the android app.
So far, I have a TCP connection between the android app and the raspberry pi (python server) and can send a command, run the command and receive some text back (decided by the python code).
What I am looking for is:
- how can I get the python server to send the console output back to the app?
- how can I display that on the android app?
For example, the console output will say
ENSEMBLE 6
Average accuracy on test data: 96 +/- 1.8%
Average accuracy on training data: 95.8 +/- 2.1%
ENSEMBLE 7
Average accuracy on test data: 98 +/- 1.8%
Average accuracy on training data: 97.8 +/- 2.1
...
I want to display the accuracy numbers in different line plots on the android app. How can I do this? What techniques will I need to learn in order to implement this on the app?
The python code:
#coding=utf-8
import socket
import time
import sys
import os
HOST_IP = "192.168.1.1" #My Raspberry Pi as the IP address of the AP hotspot
HOST_PORT = 7654 #The port number
print("Starting socket: TCP...")
socket_tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM) #Create socket
print("TCP server listen @ %s:%d!" %(HOST_IP, HOST_PORT) )
host_addr = (HOST_IP, HOST_PORT)
socket_tcp.bind(host_addr) #Binding my Raspberry Pi's IP address and port number
socket_tcp.listen(1)
# The parameter of the #listen function is the number of listening clients. Only one is monitored here, that is, only one client is allowed to establish a connection.
while True:
print ('waiting for connection...')
socket_con, (client_ip, client_port) = socket_tcp.accept() #Receive client's request
print("Connection accepted from %s." %client_ip)
socket_con.send("Welcome to RPi TCP server!") #send data
while True:
data=socket_con.recv(1024) #Receive data
if data: #If the data is not empty, print the data and forward the data to the client
print("Command executed: " + data)
os.system(data)
socket_con.send(data)
socket_tcp.close()
