#!/usr/bin/env python3
|
|
print("[INFO]: Interpreter started")
|
|
from ev3dev.core import *
|
|
import ev3dev.ev3 as ev3
|
|
print("[INFO]: Imported ev3dev.ev3")
|
|
import socket
|
|
print("[INFO]: Imported socket")
|
|
import os
|
|
print("[INFO]: Imported os")
|
|
import json
|
|
print("[INFO]: Imported json")
|
|
|
|
state = True
|
|
motor1 = ev3.LargeMotor("outA")
|
|
motor2 = ev3.LargeMotor("outD")
|
|
cam = ev3.MediumMotor('outB')
|
|
def move(speed):
|
|
if time:
|
|
motor1.run_forever(speed_sp=speed)
|
|
motor2.run_forever(speed_sp=speed)
|
|
cam.run_to_abs_pos(position_sp=0, speed_sp=500)
|
|
|
|
def stop():
|
|
motor1.stop()
|
|
motor2.stop()
|
|
cam.stop()
|
|
|
|
HOST = '0.0.0.0'
|
|
PORT = 3131
|
|
pid=os.fork()
|
|
if pid==0: # new process
|
|
mjpeg_loc = "/home/robot/mjpg-streamer/"
|
|
os.system('{0}mjpg_streamer -i "{0}input_uvc.so -f 15 -y" -o "{0}output_http.so -w {0}www"'.format(mjpeg_loc))
|
|
exit()
|
|
power = PowerSupply()
|
|
if power.measured_volts < 7.1:
|
|
print("Change the battery.")
|
|
exit()
|
|
|
|
with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
|
|
try:
|
|
s.bind((HOST, PORT))
|
|
while True:
|
|
s.listen()
|
|
print("[INFO]: Listening...")
|
|
conn, addr = s.accept()
|
|
with conn:
|
|
print('[INFO]: Connected by', addr)
|
|
move(500)
|
|
while True:
|
|
if cam.speed == 0 and (motor1.speed > 0 and motor2.speed > 0):
|
|
if state:
|
|
cam.run_to_abs_pos(position_sp=4000, speed_sp=500)
|
|
else:
|
|
cam.run_to_abs_pos(position_sp=0, speed_sp=500)
|
|
state = not state
|
|
try:
|
|
recieved = conn.recv(1024)
|
|
if not recieved:
|
|
pass
|
|
else:
|
|
recieved = recieved.decode().strip()[-1]
|
|
print(recieved)
|
|
if recieved == 's':
|
|
stop()
|
|
elif recieved == 'm':
|
|
move(500)
|
|
elif recieved == 'i':
|
|
data = {
|
|
"battery_voltage":power.measured_volts,
|
|
"current_drawn":power.measured_amps,
|
|
"lat":31,
|
|
"lng":39
|
|
}
|
|
conn.send((json.dumps(data, ensure_ascii=False)+"\n").encode('gbk'))
|
|
except BrokenPipeError:
|
|
print("[INFO]: Client disconnected")
|
|
stop()
|
|
break
|
|
except KeyboardInterrupt:
|
|
stop()
|
|
s.close()
|