jones2126

/*
* Calculate the error between current direction and the desired direction
* Use a MAP function to convert the error to a value 0-255
* Use that value to feed into a PID and use the output as the power level for the motor controller
*/

#include <Arduino.h>
/* Credit: https://www.youtube.com/channel/UCjiVhIvGmRZixSzupD0sS9Q
 *
 * Very hard left - 3492

jones2126

/*
 * This was used to confirm the size of the structure and test using the memcpy function to copy from a structure to a buffer and then back again.
 * This helped me clarify this concept would work in anticipation of including it in a lora radio master/slave setup.
 */
struct RadioControlStruct{
  int steering_val;
  int throttle_val;
  float press_norm ; 
  float press_hg;
  float temp;

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

/* Program: ttgo_adafruit_client_v2.ino
 * a simple messaging client (receiver)with the RH_RF95 class.
*/

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

//Libraries for OLED Display
#include <Wire.h>
#include <Adafruit_GFX.h>

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

/*
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