Re: [beagleboard] PocketBeagle 5 volt and 3.3 volts output pins issue.

What you are describing is typical behavior for electronics and is something you need to pay attention to. According to the OSD3358 vendor, if power is not applied to the chip, voltage should not be applied to any of its pins. You should either design a circuit to prevent this, or design your

[beagleboard] Questions about BeagleBone AI

Hello everyone, My name is Corentin, and I am a member of a team participating each year to the French robotics cup https://www.coupederobotique.fr/. So we are making robots from scratch, mechanics, electronics and coding. A robot for the cup is an autonomous with motors to move, actuators to

RE: [beagleboard] PocketBeagle 5 volt and 3.3 volts output pins issue.

Jim, Thanks for the great reply. I will change my setup so that both boards are power from the same power supply. Graham From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On Behalf Of Jim F Sent: Monday, May 25, 2020 6:25 AM To: beagleboard@googlegroups.com

[beagleboard] Re: PocketBeagle 5 volt and 3.3 volts output pins issue.

Hi, There are diodes inside MOS microcontrollers I/O that go from the I/O pin to the V+ power rail. Look at the diagram for a single mosfet transistor. Some diagrams will show the diode, while others don't, but there is a diode that points from the Source (your microcontroller I/O pin) to

[beagleboard] Re: Questions about BeagleBone AI

On Mon, 25 May 2020 07:22:38 -0700 (PDT), in gmane.comp.hardware.beagleboard.user Corentin 'Kmikaz' Vigourt wrote: > >After looking at many board with an embedded Linux, we thought that the >BeagleBone AI was the good one. > Tends to run hot, you'll likely need to add a fan.

[beagleboard] Re: RelayCape and Schematics...

Hello, I found some ways to use it. My LED is too powerful to test as is w/out a socket. Although the sockets are cheap, I could not find a similar, two-pin config. for the socket. Anyway, I will stop posting on this issue unless some people want it to keep on. Seth On Tuesday, March 31,

[beagleboard] Compatibility of Beaglebone robotics cape with Beaglebone green

Hello everyone, I am thinking about using Beaglebone to control motor and deal with encoder. To reduce the cost, I hope to use Beaglebone robotics cape and Beaglebone green. But I find on the website it says robotics cape is for BBB. Even if it works, I also need to have a Chinese manufacter

[beagleboard] Pocketbeagle 5v and 3.3v output issue

Configuration: pocketbeagle (PB) with serial port 4 (TX and RX) connected to uart on a Curie nano board. PB I2C1 connected to a MPU6050 breakout board. PD 3.5 volt output (P2 PIn 13) supplies power to MPU6050 board. This configuration works as I can transfer data between the PB and the Curie

Re: [beagleboard] Pocketbeagle 5v and 3.3v output issue

This is pretty common behavior. TTL 232 pins have a limited drive capability and may be sufficient to power or partially power connected loads such as your cutie board. Your 3v measurement on the TX line is evidence that your doing that. You are powering the system up using the ESD diodes inside

[beagleboard] Re: On All Channels and Flipping Out/Finding Out About Stepper Motors and Wiring from Kysan 1124090 - 7565/Using the Replicape for my BBB

Hello, I am done w/ my replicape for now. I have not been paying any attention to what the Replicape people have been doing w/ the source for the hardware and thus for now, I am clueless (as usual). Seth On Saturday, November 30, 2019 at 10:38:38 PM UTC-6, Mala Dies wrote: > > Hello Again, >

[beagleboard] Is this signal PRU readeable?

Hello. I am quite new to PRU, sorry in advance if I make any mistake or incorrect asumption. I would need to read a LVDS signal which is a 4 data channels + CLK and Framesync, that looks like this: As you can see, the signals change in every edge (both falling and rising edges). Of

[beagleboard] BeagleBone Ai GPIO

Good evening! I have a BeagleBone AI and I can't flash the LED on pin P9_15. I researched and verified that the mapping of the BB AI pins is different from the BBB. Did you get a solution to this problem? Thank you. -- For more options, visit http://beagleboard.org/discuss --- You received

[beagleboard] Re: What are we doing about the conversation about software, source, hardware, and beagleboard.org boards currently?

Hello, I am sorry things did not work out for me. Anyway, I hope things are going okay. For now, I am going to build some funny bot (again). ... Who knows when people will need something to go, move, and make motion available? Who really does? Anyway, if people are doing something w/ the

RE: [beagleboard] Pocketbeagle 5v and 3.3v output issue

Jim, Thanks for the explanation. I think the solution for me is to power both boards from the same power source so that they are always both on or both off. One minor problem I have is that when I am downloading a script to the CurieNano, it is powered from the USB connection that is

RE: [beagleboard] Re: PocketBeagle 5 volt and 3.3 volts output pins issue.

Jeff, Thanks for the explanation. It helped a lot. Graham From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On Behalf Of Jeff Pollard Sent: Monday, May 25, 2020 9:35 AM To: BeagleBoard Subject: [beagleboard] Re: PocketBeagle 5 volt and 3.3 volts output pins