Search results

I'm working on a custom PCB for a Teensy 3.6. It is a robot controller with various voltage regulators on board, a circuit for controlling Dynamixel servos, motor controllers, xbee connector, sensor connectors and so on. All the various features work fine, but several times now, I've killed the...

Thanks for the update on the library. Sounds good. :) To answer your question, the modified library has been working totally great with the XL-430 and soon the XM-430. After using Hitec PWM-style servos for many years, I have to say, I totally love these smart servos. Regarding our project: My...

Sounds great. Thank you again for your assistance. :)

Here is my Control Table area ax12Serial.h... /** EEPROM AREA **/ #define AX_MODEL_NUMBER_L 0 #define AX_VERSION 6 #define AX_ID 7 #define AX_BAUD_RATE 8 #define AX_RETURN_DELAY_TIME 9 /** RAM AREA **/ #define...

ax12SetRegister4 was giving me inconsistent results that I didn't understand. It would move the servo to some positions, but not others. I couldn't figure out if I needed to pass it an integer from 0-4095 or a 0x-style hex value. I didn't understand the behavior of what it was doing (and usually...

My test program is now compiling and I'm getting a little movement. That's a good sign. It's not moving the way I think it should quite yet, but I'm continuing the testing.

I resolved that last error. I needed to list the two new functions in ax12Serial.h. I did that now. On to the next error...

I add the two new function names to the keywords.txt file. The IDE is now highlighting the function call in orange, like it does the other functions, so that's good, but I'm getting the same error. Still looking.

I have copied and pasted the two new functions into the ax12Serial.h file. When I compile, it's saying "'ax12SetRegister4' was not declared in this scope". Do I need to modify one of the other library files so that it knows the new functions are there?

I haven't tried that. The control table is very different. None of the addresses match up. I'm currently putting your function into the modified library.

Thanks. I will try out these functions and see how they work. To answer your questions: The X-series servos default to Protocol 2. But they can be configured to use Protocol 1 (It's an EEPROM setting). I've done that. So we are working entirely with Protocol 1.0 here. Yes, the position values...

KurtE, I received my XL420-250-T Dynamixel servos, set them to Protocol 1.0 (so they would act more like AX12s in terms of protocol), wired one up to my Teensy 3.6, and modified the Control Table in your BioloidSerial library to accommodate the X-Series control table. I then created a...

OK. Thank you. My approach should be OK then. I checked all the pins in the socket with a multimeter. I found my problem. I had a stray lead connecting 12v to the TX1 and another stray lead connecting 7.4V to the A2 line. When I turned on power to the PCB, it burned a 1/2" hole in the Teensy...

I am designing a PCB for a robot. It has a socket for a Teensy 3.6, which will act as the robot's microcontroller. Is it OK to power the Teensy by connecting 5V to the Teensy's VIN pin and ground to the Teensy's GND pin next to pin 13? My assumption is that all the GND pins are connected to each...

Paul, Thank you so much for all the work you do. I love the Teensy 3.6. And I'm excited to hear about the future of Teensy with the Cortex M7 Teensy 4.0. Sounds awesome. Thanks for sharing a glimpse into the Teensy future. I know it's still early, but are you thinking that it will have the same...

Thanks for the info. I could definitely be wrong, but from what I can tell, the T suffix on the end of the XL430-W250-T indicates that it is a 3-wire TTL servo rather than a 4-wire RS485 servo. Some of the servos in the X-series line have the T suffix. Others have the R...

Thank you again for the help getting my Teensy 3.6 to work with my AX-12s. I'm going to be moving into Dynamixel XL430 servos now (and eventually into the higher end X-series servos). As you know, the XL430s are part of the new X-series line. I have ordered two from Trossen Robotics. When they...

OK. The simplification in my bench top test program is done. Thank you for your help on this. I'm good to go. :)

I have the program working! The program is reading valid data from the servo and it's controlling it (changing its position, etc.). Very cool! :) Thank you. :) My next step is to simplify the program to remove the Quad, Hex, Turret, and other definitions and code unrelated to my project. I...

Hi KurtE, Thanks for the link to the current test program. I have it in place and it is compiling OK. My next goal is to modify the code for my very simple test situation: Teensy 3.6 plugged into USB/computer. Servo serial communication wire on Pin 0 (TX1). Servo ground wire connected to 12V...

Hello KurtE, Thank you for your work on Teensy and Dynamixel servos. I downloaded your BioloidSerial library from GitHub, installed the library into Arduino as usual, and tried to compile the Kurts_AX12_Test_Use_Serial example sketch. I'm getting an error when I attempt to compile it. I was...