how to call arduino codes using topics
the codes are dc motor controller, PID controller, ultrasonic sensor
the codes are dc motor controller, PID controller, ultrasonic sensor
If you want to interact with Arduino from ROS you have to do it by serial communication. I think the simplest way is python scripting. I did it a few years ago. I had implement a protocol with SYNC, OP_ID, PARAMETERS and CHECKSUM between the PC (ROS) and Arduino
This was my Python script imports:
...
import rospy
import os
import comm
from datetime import datetime
....
where comm is the python file wich manages communication with arduino board
Here I am reading a message from arduino in my ros node file (this is the arduino objetc: ArdIfc)
...
newMsg = ArdIfc.recv()
if newMsg != None:
if newMsg.mod == comm.MOD_SENSORS:
if newMsg.op == comm.OP_GETCURRENTDIST:
torsoPos = newMsg.param[0]
...
Here I am sending a message to the Arduino from my ros node file
...
rospy.loginfo("Torso-> Stop message.")
msgMotor = comm.Msg(comm.ARDUINO_ID, comm.MOD_MOTORS, comm.OP_STOP_MOTOR, [], 0)
ArdIfc.send(msgMotor)
msgMotor_ack_received = False
...
If you want the code I can send it to you.
best, Fedeico
Sir may i learn how to connect a arduino based Robotic arm with MoveIt
@lagankapoor: comments aren't an appropriate place to ask questions. You should create your own question instead of asking in a comment.
thanks sir check i ask new question today please if you know about that help me
I would recommend taking a look at http://wiki.ros.org/rosserial?distro=... maybe that could work.
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Asked: 2017-12-06 09:36:11 -0500
Seen: 85 times
Last updated: Dec 06 '17
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Welcome! What do you mean by "call arduino codes using topics"? What are you trying to accomplish? Also, please see http://wiki.ros.org/Support#Guideline...