jones2126

/* 
 * Program: ttgo_adafruit_server.ino
 * a simple messaging server(sender)with the RH_RF95 class.
*/


#include <SPI.h>
#include <RH_RF95.h>

//#define RFM95_CS  2    // "E"

jones2126

/* 
   ttgo_RH_RF95_init  This program is used to test getting the LoRa service to initialize on a TTGO ESP32 LoRa board
   ref: https://microcontrollerslab.com/ttgo-lora32-sx1276-oled-board-pinout-getting-started-with-arduino-ide/
*/
#include <SPI.h>
#include <RH_RF95.h>
#include <RHReliableDatagram.h>

// LoRa pins for TTGO Semtech SX1276 
#define LORA_MISO 19

jones2126

/*

steer_motor_v3.cpp

Subscribes to cmd_vel 
Sends commands to motor controller connected to Teensy using commands digitalWrite(DIRPin, HIGH); 

*/
#include "ros.h"
#include "std_msgs/UInt16.h"

jones2126

/*
Test program for a MAP function aimed at testing code for a steering module that will be used to turn a steering servo from hard left to hard right
based on the steering angle provided which will generally be between .82 and -.76 which has to be mapped to a range of -14,000 and 13,500 which are
the values from the steering angle sensor.

I initially tested  this on an Arduino Nano Every board

   if(angular_vel_z > 0)
    {
        steering_angle_target = angular_vel_z*(steer_left_max - steer_straight) / 1+steer_straight; 

jones2126

/*
Test program for a MAP function aimed at testing code for a steering module that will be used to turn a steering servo from hard left to hard right
based on the steering angle provided which will generally be between .82 and -.76 which has to be mapped to a range of -14,000 and 13,500 which are 
the values from the steering angle sensor.
*/

#include <Arduino.h>

// steering value constants
const int steer_straight = 1;

jones2126

/*

This program is designed to run on a Teensy that is connected to a SuperServo to make the Super Servo ROS enabled and control 
the transmission of a lawn tractor.  It is started in a launch file as one of multiple nodes with the command: 
<node ns="transmission_teensy" name="transmission_cntrl" pkg="rosserial_python" type="serial_node.py" args="/dev/transmission_control" output="screen" />

Overview:
    subscribe to a target speed in cmd_vel format (i.e. cmd_vel.linear.x)
    subscribe to actual speed from the rear wheels 
    adjust servo position to match actual speed to target speed

jones2126

Similar posts https://github.com/ethereum-mining/ethminer/issues/1966

What is not clear is the fix.  There is a mention, "You can continue using ethminer if you can build the binary on your own
See instructions here https://github.com/ethereum-mining/ethminer#build"

Download ethminer-0.18.0-cuda-8-linux-x86_64.tar.gz

Are these correct? (from: https://github.com/ethereum-mining/ethminer/blob/master/docs/BUILD.md)
$ sudo apt install libdbus-1-dev
$ sudo apt-get install mesa-common-dev

jones2126

#!/usr/bin/env python
#

import tkinter as tk
from tkinter import ttk
import subprocess
import time
'''
issues: 
- speed up the login process by looking for the $ which shows the login has completed

jones2126

import tkinter as tk
from tkinter import ttk
import rospy
from std_msgs.msg import Int16

"""
Simple Python subscriber to a ROS topic (/front_angle_low_res) which in my case is outputing an integer result 
and displays the result in a tkinter window

credit: https://www.pythontutorial.net/tkinter/tkinter-after/

jones2126

/*
  Using the BNO080 IMU

  Example : Euler Angles
  By: Paul Clark
  Date: April 28th, 2020

  Based on: Example1-RotationVector
  By: Nathan Seidle
  SparkFun Electronics