Quickstart

The most basic way to send a command and other IO controls to the microcontrollers connected to the clients (here assumed to be Arduinos) is through the experiment_0.py module. This module can be duplicated and modified at will to satisfy your needs and it won’t yield any problems as long as the copy still resides on the same folder or all its necessary libraries are properly referenced on $PYTHONPATH or sys.path. The module is composed of the following most important methods and classes:

experiment_0
├── control
├── hanashi.arduino_command
├──stage_0_read
├──stage_0_set

hanashi.arduino_command(str command,[list servers],[boolean wait_return])

Sends an arduino command via serial.

• command(str): Command to be sent to the microcontroller.

• servers[list]: List of urls for the destination hosts.

• wait_return[boolean]: Whether or not to wait for a response.

Example

Sending a command set(brilho,100) to an Arduino connected to host 192.168.0.1 on port 2000 without waiting for a response:

import experiment_0 as e0

e0.hanashi.arduino_command("quiet_connect") #Only needs to run once
e0.hanashi.arduino_command("set(brilho,100)",["http://192.168.0.1:2000"])

class control

Used to periodically increment variable brilho and make readings over time.

Example - Reading

Making a reading on reactors 2 and 3 every 30 seconds:

import experiment_0 as e0

C = e0.control()
C.reactors = [2,3]
C.time_read = 30
C.start_read()

Cancelling the process:

C.read_thread.cancel()

Since control is a class, it is possible to create several objects controlling different microcontroller subsets at different time reading variations.

Example - Brilho

Varying the microncontroller’s variable brilho every minute for reactor 2:

import experiment_0 as e0

C = e0.control()
C.reactors = [2]
C.time_brilho = 60
C.brilho = 10
C.start_brilho_ladder()

Canelling the process:

C.brilho_thread.cancel()