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• I Have an Update Finally!

  silver2row • 02/17/2022 at 11:38 • 0 comments

  So, 

  Here we are again trying to make something that works well, work better!

  Please view the video:

  So, that is the bot but smaller. It is not a mower but has four, bidirectional DC Motors that work together to move the bot in an almost frictionless movement. 

  The software is here:

  # /*
   # * MotorBridge.py
   # * This is a library for BBG/BBB motor bridge cape
   # *
   # * Copyright (c) 2015 seeed technology inc.
   # * Author      : Jiankai Li
   # * Create Time : Nov 2015
   # * Change Log  : From #beagle on Freenode and my changes (Seth 2019)!
   # *
   # * The MIT License (MIT)
   # *
   # * Permission is hereby granted, free of charge, to any person obtaining a copy
   # * of this software and associated documentation files (the "Software"), to deal
   # * in the Software without restriction, including without limitation the rights
   # * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   # * copies of the Software, and to permit persons to whom the Software is
   # * furnished to do so, subject to the following conditions:
   # *
   # * The above copyright notice and this permission notice shall be included in
   # * all copies or substantial portions of the Software.
   # *
   # * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   # * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   # * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   # * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   # * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   # * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   # * THE SOFTWARE.
   # */
  # FileName : MotorBridge.py
  # by Jiankai.li
  
  # w/ help from additions from #beagle on what used to be Freenode and me (Seth)!
  
  from smbus2 import SMBus
  import time
  import pathlib
  
  # reset pin is P9.23, i.e. gpio1.17
  reset_pin = pathlib.Path('/sys/class/gpio/gpio49/direction')
  reset_pin.write_text('low')
  
  MotorBridge = SMBus('/dev/i2c-2')
  
  ReadMode  = 0
  WriteMode = 1
  DeAddr    = 0X4B
  ConfigValid = 0x3a6fb67c
  DelayTime = 0.005
  
  # TB_WORKMODE
  
  TB_SHORT_BREAK  = 0
  TB_CW           = 1
  TB_CCW          = 2
  TB_STOP         = 3
  TB_WORKMODE_NUM = 4
  
  
  # TB_PORTMODE
  
  TB_DCM          = 0
  TB_SPM          = 1
  TB_PORTMODE_NUM = 2
  
  
  # SVM_PORT
  
  SVM1            = 0
  SVM2            = 1
  SVM3            = 2
  SVM4            = 3
  SVM5            = 4
  SVM6            = 5
  SVM_PORT_NUM    = 6
  
  # SVM_STATE
  
  SVM_DISABLE     = 0
  SVM_ENABLE      = 1
  SVM_STATE_NUM   = 2
  
  # IO_MODE
  
  IO_IN           = 0
  IO_OUT          = 1
  IO_MODE_NUM     = 2
  
  # IO_PUPD
  
  IO_PU           = 0
  IO_PD           = 1
  IO_NP           = 2
  IO_PUPD_NUM     = 3
  
  # IO_PPOD
  
  IO_PP           = 0
  IO_OD           = 1
  IO_PPOD_NUM     = 2
  
  # IO_STATE
  
  IO_LOW          = 0
  IO_HIGH         = 1
  IO_STATE_NUM    = 2
  
  # IO_PORT
  
  IO1             = 0
  IO2             = 1
  IO3             = 2
  IO4             = 3
  IO5             = 4
  IO6             = 5
  IO_NUM          = 6
  
  
  # PARAM_REG
  
  CONFIG_VALID        = 0
  CONFIG_TB_PWM_FREQ  = CONFIG_VALID + 4
  
  I2C_ADDRESS         = CONFIG_TB_PWM_FREQ + 4
  
  TB_1A_MODE          = I2C_ADDRESS + 1
  TB_1A_DIR           = TB_1A_MODE + 1
  TB_1A_DUTY          = TB_1A_DIR + 1
  TB_1A_SPM_SPEED     = TB_1A_DUTY + 2
  TB_1A_SPM_STEP      = TB_1A_SPM_SPEED + 4
  
  TB_1B_MODE          = TB_1A_SPM_STEP + 4
  TB_1B_DIR           = TB_1B_MODE + 1
  TB_1B_DUTY          = TB_1B_DIR + 1
  TB_1B_SPM_SPEED     = TB_1B_DUTY + 2
  TB_1B_SPM_STEP      = TB_1B_SPM_SPEED + 4
  
  TB_2A_MODE          = TB_1B_SPM_STEP + 4
  TB_2A_DIR           = TB_2A_MODE + 1
  TB_2A_DUTY          = TB_2A_DIR + 1
  TB_2A_SPM_SPEED     = TB_2A_DUTY + 2
  TB_2A_SPM_STEP      = TB_2A_SPM_SPEED + 4
  
  TB_2B_MODE          = TB_2A_SPM_STEP + 4
  TB_2B_DIR           = TB_2B_MODE + 1
  TB_2B_DUTY          = TB_2B_DIR + 1
  TB_2B_SPM_SPEED     = TB_2B_DUTY + 2
  TB_2B_SPM_STEP      = TB_2B_SPM_SPEED + 4
  
  SVM1_STATE          = TB_2B_SPM_STEP + 4
  SVM1_FREQ           = SVM1_STATE + 1
  SVM1_ANGLE          = SVM1_FREQ + 2
  
  SVM2_STATE          = SVM1_ANGLE + 2
  SVM2_FREQ           = SVM2_STATE + 1
  SVM2_ANGLE          = SVM2_FREQ + 2
  
  SVM3_STATE          = SVM2_ANGLE + 2
  SVM3_FREQ           = SVM3_STATE + 1
  SVM3_ANGLE          = SVM3_FREQ + 2
  
  SVM4_STATE          = SVM3_ANGLE + 2
  SVM4_FREQ           = SVM4_STATE + 1
  SVM4_ANGLE          = SVM4_FREQ + 2
  
  SVM5_STATE          = SVM4_ANGLE + 2
  SVM5_FREQ           = SVM5_STATE + 1
  SVM5_ANGLE          = SVM5_FREQ + 2
  
  SVM6_STATE          = SVM5_ANGLE + 2
  SVM6_FREQ           = SVM6_STATE + 1
  SVM6_ANGLE          = SVM6_FREQ + 2
  
  IO1_STATE           = SVM6_ANGLE + 2
  IO1_MODE            = IO1_STATE + 1
  IO1_PUPD = IO1_MODE +...

  Read more »

• Online Controls via Web Application

  silver2row • 03/08/2019 at 22:53 • 0 comments

  Hello,

  I just configured the, and yes this has taken forever and a day, web application to work w/ the BBGW and the Motor Bridge Cape w/ the help of w3schools.com and a person on #beagle on Freenode.

  ...

  I will promote this web application soon w/ Flask, Bootstrap, and HTML on github.com.

  ...

  I have to set up git on my BBGW and then update the software on the GitHub.com page.

  Seth

  P.S. If you are more interested in this concoction of ideas, please contact me or wait longer to see what transpires. 

• Dude! Bro! Geaux!

  silver2row • 06/10/2017 at 04:49 • 0 comments

  Hello,

  I got this thing put together and it can geaux. I am currently working with Flask, Python, BBG, and the Motor Bridge Cape from Seeed Studio to make this sucker hum.

  I want to be able to write an application with Flask to make my motors understand what it is they need to know to geaux but geaux more than just geaux. So, I have to make a separate understanding on my behalf in the form of education.

  I was thinking. I guess I could make a motor provide enough current to make the battery recharge but I am far away from this progress. Enjoy!

  Seth

  P.S. If you have any ideas, please let me know about your usage with Flask, Python, and HTML. I like to work with this dated yet useful packages/languages. Yea boy!

• BBB/BBG and the Motor Bridge Cape

  silver2row • 05/01/2017 at 01:30 • 1 comment

  Hello,

  I have been out of the funds to support my project. So, in hindsight, what I did was so worth it. I got a credit card, maxed it out, and went for broke. Now, I must pay some handsome interest. Boo! Anyway, this is the part that was worth it.

  I got my parts, my software still needs work, and I can now say I am a part to the human dilemma of debt.

  If you have any questions on the software, the Motor Bridge Cape, and/or anything in between, let me know. I have been working on this item for some time now and I have just about every quirk worked out.

  Seth

  P.S. I can run four motors off the Motor Bridge Cape with the correct software. What is listed is only for one motor and that software for the MotorBridge.py file needs to be altered to suit the needs of specific Debian-Linux distros. Let me know!
  

• BBG and the MotorBridgeCape

  silver2row • 05/27/2016 at 17:22 • 0 comments

  • Drilling into Stainless, although it weighs more and is heavier than "Butter" aluminum, is a pain in the A$%.
    • I have been making mistake after mistake since I lack a drill press.
    • So, with these mistakes showing up, I have to consider the damage and reconfigure.
  • I have all the equipment so far.
    • All equipment is ready to be assembled except for the drilling of the stainless steel that will house my two motors and weed-eater engine for propelling the blade to cut.
    • Once the stainless is drilled, I can add my other electric DC motor to create a triangle of wheels. Two motors will carry sprockets as wheels for grass interference and there will be one swivel wheel in the front to create extra support.
    
    
  • So...in the meantime is when I can alter this software to suit my needs. I may need assistance in the software field but I will let people know soon.
  • If you get bored and you are reading this info, please try to contact me with any questions or concerns.

  Seth

View all 5 project logs