joshua-8

#!/usr/bin/env python
import rospy
import time
from pidrone_pkg.msg import State
from sensor_msgs.msg import Range, Imu

def callbackRange(data):
      	import datetime
  	dt = datetime.datetime.now()
	print("range",data.range,dt.second+dt.microsecond/1000000.0," "," "," ")

joshua-8

#!/usr/bin/env python3

"""
optical_flow_node_replacer.py is a ros node that can be used instead of the optical_flow_node in pidrone_pkg/scripts to publish a zero velocity and fly with no camera.
JoshuaPhelps127@gmail.com  2023-03-10
"""

import rospy
from geometry_msgs.msg import TwistStamped

joshua-8

#!/usr/bin/env python3

import rospy
import argparse
import numpy as np

from sensor_msgs.msg import Range
from std_msgs.msg import Header

from dt_vl53l0x import \

joshua-8

/**
Arduino program written by joshua-8 and rowanberry in 2021
  This program was written to display patterns on 
  Adafruit's large led disk: https://www.adafruit.com/product/2477
  
  a "sector", a portion of one of the circular paths, can be light up and fade out towards each end
  
  another animation looks like a stone dropped in the center of poo.
*/

joshua-8

// written by Joshua-8 2022-05
// testing code for combining relays with a high resolution (PWMed) "fine adjust" to reduce relay movement

import grafica.*;

import java.util.Collections;
int gi=0;
GPlot plot;
int numRelays=5;
int numCoarseSteps=int(pow(2, numRelays));

joshua-8

// written by Joshua-8 2022-03


import grafica.*;

import java.util.Collections;

//simulate resistors being inaccurate
float[] scale={1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0};

joshua-8

/*
 * It is an inexpensive device to motivate children to exercise on a stationary bike; when the children pedal a bike, a movie or song they have chosen plays.
 * It uses a magnet sensor to measure the speed of the pedal or crank of an exercise machine, and has a knob for changing what threshold is fast enough.
 * The microcontroller emulates a keyboard and sends a space key press to start or stop any video or music playing on a computer.
 * Use with a Digispark http://digistump.com/products/1, knob, and magnet sensor.
 * by Joshua, 2015
 */
#include "DigiKeyboard.h"
boolean paused = true;
unsigned long timeSinceCrank = 10000000;

joshua-8

String inString = "";
#include <Servo.h>
Servo myservo1;
void setup() {

  myservo1.attach(9);
  Serial.begin(2000000);

  Serial.println("ESCs Speed Control. attach pin 9 to the ESC.");
}

joshua-8

/*
 This program is for testing code that can be used to limit the first and second derivative of a variable as it approaches a target value.
 
 It's easiest to think of in terms of position, velocity, and acceleration. If used with a servo, for example, the servo would smoothly move to a target value with a trapezoidal velocity profile.
 
 The formula in this program supports being run at uneven intervals, and allows for editing the target, position, and velocity while it runs
 Arduino library I wrote using the algoritihm developed here: https://github.com/joshua-8/Derivs_Limiter
 
 The code was rewritten for version 3 of Derivs_Limiter (supporting different accel from decel and velocity target mode) in June 2022 by joshua-8
 */