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2 Days Ago

jwatte replied to a thread ESP32 Support ? in DYNAMIXEL & Robot Actuators

It's totally OK to do something just because it's cool :-) I'm just saying I wouldn't bet the house on the ESP32 ecosystem growing particularly...

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22 replies | 1134 view(s)
3 Days Ago

jwatte replied to a thread ESP32 Support ? in DYNAMIXEL & Robot Actuators

Will someone make a 5V ESP32 board? I doubt it, for two reasons. First, 5V really is on the way out. Very few things are 5V anymore. Main SOC...

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22 replies | 1134 view(s)
3 Days Ago

jwatte replied to a thread ESP32 Support ? in DYNAMIXEL & Robot Actuators

A SN74LVC1T45 is totally capable of interfacing with the DXL 5V bus from a 3V part. Use VCCA as 3.3V and VCCB as 5.0V. Wire TX and RX together on the...

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22 replies | 1134 view(s)
4 Days Ago

jwatte replied to a thread ESP32 Support ? in DYNAMIXEL & Robot Actuators

Yeah, the "T" is important -- it means "TTL level" which is what you need to guarantee "sensing" a zero and one properly in this case. (The "C"...

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22 replies | 1134 view(s)
1 Week Ago

jwatte replied to a thread Question(s) Dynamixel AX-12A serially connected to MATLAB in Robotics General Discussion

Can you scan the servo using the (free to download) Robotis + software (especially the Dynamixel Manager tool)?

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1 replies | 359 view(s)
1 Week Ago

jwatte replied to a thread ESP32 Support ? in DYNAMIXEL & Robot Actuators

Thanks for the offer, but my dance card is already over-full :-(

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22 replies | 1134 view(s)
1 Week Ago

jwatte started a thread Dynamixel 2.0 feature! in DYNAMIXEL & Robot Actuators

Spotted this new feature in the MX-64 firmware:

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3 replies | 404 view(s)
2 Weeks Ago

jwatte replied to a thread Wheelchair mobility bot help in Rovers

It has been my experience that home-built options always end up being more expensive than buying the ready-made solution. The reason for this is...

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2 replies | 412 view(s)
2 Weeks Ago

jwatte replied to a thread Question(s) Connecting a +- powersupply to an OpenCM9.04 Board in Arbotix, Microcontrollers, Arduino

When I measured, it seemed like the battery connectors and the ++-- pins were electrically connected, and thus you can choose the one that fits...

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2 replies | 287 view(s)
2 Weeks Ago

jwatte replied to a thread Question(s) Motor model for XM430-W350-R in DYNAMIXEL & Robot Actuators

I believe it is a coreless brushed motor.

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3 replies | 581 view(s)
3 Weeks Ago

jwatte replied to a thread Question(s) Avrdude error - Artibotix - board not working in Arbotix, Microcontrollers, Arduino

FWIW, I use the OpenCM 9.04, and I use a Teensy with a custom adapter board.

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8 replies | 631 view(s)
3 Weeks Ago

Gertlex replied to a thread 2018 Robogames Mech Warfare Qualifying in Mech Warfare

Hmmmm looks like I missed the registration deadline. Oh well, I'll shoot for joining you guys for a weekend in Arizona this winter :). Twitter...

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14 replies | 1758 view(s)
3 Weeks Ago

jwatte replied to a thread News/Announcement The Robotis TurtleBot3 in Rovers

FWIW, the Pi can run AI without the compute stick, too. Not on the GPU (which is sluggish) but the main CPU has Neon support and four cores. I've...

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94 replies | 15238 view(s)

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About jwatte

Basic Information

Age: 49

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TRC Gallery

Total Media: 27

Last Upload: Dimensions of holes and body of MX-64-T Robotis Dynamixel Servo

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Total Posts: 3,293

Posts Per Day: 1.51

Last Post: ESP32 Support ? 2 Days Ago

General Information

Last Activity: 5 Hours Ago

Join Date: 04-23-2012

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3 Friends

Gertlex

Mech Warfare Veteran
r3n33

RoboEmpress
Ron

Neuron

Showing Friends 1 to 3 of 3

Little Walker
- Created by jwatte
- Synopsis: A biped made with only three hobby servos
Money Pit -- RoboMagellan Rover
- Created by jwatte
- Synopsis: I'm converting a 10-year-old RC car (a Nikko humvee truck) to a RoboMagellan competitor for 2013 RoboGames. The main navigation is a pair of 1080p webcams set 40 degrees apart. Additional sensors and lost of computer power helps.