Tag Archives: DPRG

Awesome High Schoolers Get Robotics Done! – DPRG Virtual Monthly Meeting, Mar 13th, 2021

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Meeting Video:

Chat Record:  Chat record (PDF)

High School robotics team Iron Reign has a long history of building and competing with remarkably interesting and capable robots. Join us this month to see how Iron Reign Robotics is doing with this year’s FTC competition, Ultimate Goal. Be inspired by the results these dedicated High School students produce. Like most DPRG members, you will surely pick up tips, tricks, and ideas along the way. Or bring along your aspiring middle school STEM students to give them ideas…

The meeting will start at 1:00 PM CST (Dallas Time) on Saturday, March 13th.  You can join the meeting:


Learn more about the Iron Reign team here https://ironreignrobotics.org/

After the presentation if time permits, we will have follow-on discussions, such as ‘latest member builds show and tell’ or ‘open mic Q&A’.

About DPRG Monthly Meetings

DPRG hosts presentations each month during its regular membership meeting. These meetings and presentations are open to public and free to attend. We hope to see you there. Everyone is welcome!

Note: We do record a video of these sessions and post them on the DPRG YouTube channel (https://www.youtube.com/user/DPRGclips). By joining the meeting you’re giving consent to be included in the recording.

RBNV – Robot Builders Night Virtual – Mar 9, 2021

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Meeting Video:

Chat Record:  Chat record (PDF)

When

• March 9th, starting at 7:30 PM Dallas time (CST).
• RBNV will continue each Tuesday evening until the virus crisis is over.

How

• Join Hangouts Meet https://meet.google.com/hey-jxuo-esf
• Or join by phone ‪+1 405-586-5598‬ ‬ PIN: ‪682 931 335 #‬

Why

• Talk robots & related stuff.
• Keep going while we’re stuck at home.
• Make it easier for people to attend DPRG remotely.

Agenda:

• Round table – everybody spends a couple minutes telling what projects they’re working on as we’re all stuck at home
• Ad-hoc presentations – Whoever would like to show & tell.
• “Stump the club” Challenges – Ask for help if you’ve hit a roadblock in your project. Somebody in the club can probably get you pointed in a good direction – or even arrange a side bar session to help.

Note: We record a video of these sessions and post them on the DPRG YouTube channel. By joining the meeting, you’re giving consent to be included in the recording.

RBNV – Robot Builders Night Virtual – Mar 2, 2021

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Meeting Video:

Chat Record:  Chat record (PDF)
When

• March 2nd, starting at 7:30 PM Dallas time (CST).
• RBNV will continue each Tuesday evening until the virus crisis is over.

How

• Join Hangouts Meet https://meet.google.com/hey-jxuo-esf
• Or join by phone ‪+1 405-586-5598‬ ‬ PIN: ‪682 931 335 #‬

Why

• Talk robots & related stuff.
• Keep going while we’re stuck at home.
• Make it easier for people to attend DPRG remotely.

Agenda:

• Round table – everybody spends a couple minutes telling what projects they’re working on as we’re all stuck at home
• Ad-hoc presentations – Whoever would like to show & tell.
• “Stump the club” Challenges – Ask for help if you’ve hit a roadblock in your project. Somebody in the club can probably get you pointed in a good direction – or even arrange a side bar session to help.

Note: We record a video of these sessions and post them on the DPRG YouTube channel. By joining the meeting, you’re giving consent to be included in the recording.

RBNV – Robot Builders Night Virtual – Feb 9, 2021

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Meeting Video:

Chat Record:  Chat record (PDF)

When

•February 9th, starting at 7:30 PM Dallas time (CST).
• RBNV will continue each Tuesday evening until the virus crisis is over.

How

• Join Hangouts Meet https://meet.google.com/hey-jxuo-esf
• Or join by phone ‪+1 405-586-5598‬ ‬ PIN: ‪682 931 335 #‬

Why

• Talk robots & related stuff.
• Keep going while we’re stuck at home.
• Make it easier for people to attend DPRG remotely.

Agenda:

• Round table – everybody spends a couple minutes telling what projects they’re working on as we’re all stuck at home
• Ad-hoc presentations – Whoever would like to show & tell.
• “Stump the club” Challenges – Ask for help if you’ve hit a roadblock in your project. Somebody in the club can probably get you pointed in a good direction – or even arrange a side bar session to help.

Note: We record a video of these sessions and post them on the DPRG YouTube channel. By joining the meeting, you’re giving consent to be included in the recording.

RBNV – Robot Builders Night Virtual – Feb 2, 2021

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Meeting Video:

Chat Record:  Chat record (PDF)

When

•February 2nd, starting at 7:30 PM Dallas time (CST).
• RBNV will continue each Tuesday evening until the virus crisis is over.

How

• Join Hangouts Meet https://meet.google.com/hey-jxuo-esf
• Or join by phone ‪+1 405-586-5598‬ ‬ PIN: ‪682 931 335 #‬

Why

• Talk robots & related stuff.
• Keep going while we’re stuck at home.
• Make it easier for people to attend DPRG remotely.

Agenda:

• Round table – everybody spends a couple minutes telling what projects they’re working on as we’re all stuck at home
• Ad-hoc presentations – Whoever would like to show & tell.
• “Stump the club” Challenges – Ask for help if you’ve hit a roadblock in your project. Somebody in the club can probably get you pointed in a good direction – or even arrange a side bar session to help.

Note: We record a video of these sessions and post them on the DPRG YouTube channel. By joining the meeting, you’re giving consent to be included in the recording.

RBNV – Robot Builders Night Virtual – Jan 26, 2021

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Meeting Video:

Chat Record:  Chat record (PDF)
When

•January 26th, starting at 7:30 PM Dallas time (CST).
• RBNV will continue each Tuesday evening until the virus crisis is over.

Meeting Highlight

The FTC robotics team, Iron Reign, presented their process to design and implement a ring shooter. It covered a description of the problem, the mathematical model, the CAD design, and physical assembly. The ring shooter’s first launch was made during the meeting.

How

• Join Hangouts Meet https://meet.google.com/hey-jxuo-esf
• Or join by phone ‪+1 405-586-5598‬ ‬ PIN: ‪682 931 335 #‬

Why

• Talk robots & related stuff.
• Keep going while we’re stuck at home.
• Make it easier for people to attend DPRG remotely.

Agenda:

• Round table – everybody spends a couple minutes telling what projects they’re working on as we’re all stuck at home
• Ad-hoc presentations – Whoever would like to show & tell.
• “Stump the club” Challenges – Ask for help if you’ve hit a roadblock in your project. Somebody in the club can probably get you pointed in a good direction – or even arrange a side bar session to help.

Note: We record a video of these sessions and post them on the DPRG YouTube channel. By joining the meeting, you’re giving consent to be included in the recording.

RBNV – Robot Builders Night Virtual – Jan 19, 2021

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Meeting Video:

Chat Record:  Chat record (PDF)
When

•January 19th, starting at 7:30 PM Dallas time (CST).
• RBNV will continue each Tuesday evening until the virus crisis is over.

How

• Join Hangouts Meet https://meet.google.com/hey-jxuo-esf
• Or join by phone ‪+1 405-586-5598‬ ‬ PIN: ‪682 931 335 #‬

Why

• Talk robots & related stuff.
• Keep going while we’re stuck at home.
• Make it easier for people to attend DPRG remotely.

Agenda:

• Round table – everybody spends a couple minutes telling what projects they’re working on as we’re all stuck at home
• Ad-hoc presentations – Whoever would like to show & tell.
• “Stump the club” Challenges – Ask for help if you’ve hit a roadblock in your project. Somebody in the club can probably get you pointed in a good direction – or even arrange a side bar session to help.

Note: We record a video of these sessions and post them on the DPRG YouTube channel. By joining the meeting, you’re giving consent to be included in the recording.

RBNV – Robot Builders Night Virtual – Jan 12, 2021

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Meeting Video:

Chat Record:  Chat record (PDF)

When

•January 12th, starting at 7:30 PM Dallas time (CST).
• RBNV will continue each Tuesday evening until the virus crisis is over.

How

• Join Hangouts Meet https://meet.google.com/hey-jxuo-esf
• Or join by phone ‪+1 405-586-5598‬ ‬ PIN: ‪682 931 335 #‬

Why

• Talk robots & related stuff.
• Keep going while we’re stuck at home.
• Make it easier for people to attend DPRG remotely.

Agenda:

• Round table – everybody spends a couple minutes telling what projects they’re working on as we’re all stuck at home
• Ad-hoc presentations – Whoever would like to show & tell.
• “Stump the club” Challenges – Ask for help if you’ve hit a roadblock in your project. Somebody in the club can probably get you pointed in a good direction – or even arrange a side bar session to help.

Note: We record a video of these sessions and post them on the DPRG YouTube channel. By joining the meeting, you’re giving consent to be included in the recording.

L298N Motor Driver Board – Drive Modes

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Author: Doug Paradis

This article discusses how to connect the L298 motor driver in three modes: drive/coast, sign-magnitude, and lock anti-phase. Code examples will be for the Arduino Uno (or with small modifications the Mega2560).

The L298N is a dual H-bridge chip often packaged nicely on a PCB module. It is widely used on small inexpensive hobbyist robots. It has a maximum current specification of 2.0 A per channel with a peak current of 3.0 A per channel (from STI spec sheet). Each H-bridge can control one DC brushed motor.

Picture of a common L298N PCB module

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