Questions tagged [beaglebone-black]

The 'black' is a version of the Beagle board, a single-board computer powered by an ARM CPU running Linux.

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Why is my infrared receiver working on my Beaglebone Black but not my Raspberry Pi?

I have a TSOP4438 wired to GPIO pins of a Raspberry Pi Zero W and Beaglebone Black as shown in the diagram: I'm trying to use this to control my Pi with an old Roku remote. I initially tried this ...
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Beaglebone Black CAN bus overlay does not work

I'm trying to use the CAN1 bus on the Beaglebone Black board (the pins at P9.24 and P9.26). First I tried the config-pin commands to change the pinmux mode from its ...
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Read S2 button on Beaglebone Black [closed]

The beaglebone black board has an onboard button labeled as S2. I need to detect when a user pressed it to take certain action when it is pressed. Can I access the S2 onboard button to detect when the ...
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CAN1 on BeagleBone Black Wireless

I am trying to get CAN1 on BBB Wireless to work as described here, following all steps in the sequence. I am able to bring the interface up, however at the first transaction, the syslog shows ...
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Which wall charger for Beaglebone Green Wireless? [duplicate]

I'm trying to find an appropriate wall charger to power my Beaglebone Green Wireless (BBGW) through Micro-USB port. Wall is 220v 50Hz. Hardware Overview reveals a TPS65217C Power Management IC (PMIC). ...
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How to generate PWM with duty cycle varying in sinusoidal fashion?

I have to regulate a sinusoidal current in an inductor. I have only a DC supply. There are many ways to do it like using stepper motor driver to regulate step wise sinusoidal in 1/256th step mode. For ...
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Controlling 32 solenoid valves from a single BeagleBone Black

I am trying to control 32 solenoid valves from a single BeagleBone Black. My EE skills are not up to par for this task, but I am learning. In this system, at most one solenoid will be active at any ...
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How to access I2S pins of Lara R211 on the EVK-R2xx board

I just received the EVK-R2xx board from u blox. I need to access the i2S pins on the Lara R211 on this board in order to connect it to a beaglebone black so that I can use the audio directly from the ...
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AT commands no answers ! SIM808 and Arduino

I will try to explain my problem... I'm using a SIM808 GSM-GPS click module and a ARDUINO nano 33 IoT board, I'm sending the command "AT\r" thanks to the TX port from the ARDUINO board to ...
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2 votes
1 answer
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Problem communicating with UART1 with Python on Beaglebone Black

I am having issues communicatong to UART1 of my Beaglebone Black with python My code on Python3 is as follows: import Adafruit_BBIO.ADC as ADC import Adafruit_BBIO.GPIO as GPIO from time import sleep ...
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Configuring UART pins on Beaglebone Black for CAN Interface

I have been using a CAN/RS485 Cape for prototyping CAN control of a motor. I am now in the process of bringing up some custom hardware. I have a CAN Transceiver SN65HVD230D on this custom cape that is ...
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Do UART pins on the Beagle Bone Black require tri-state buffers?

The project I am working on uses a Beagle Bone Black (BBB) rev C, we are powering it externally through a cape according to the System Reference Manual's instructions. The System Reference Manual ...
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Multidrop bus protocol on the BeagleBone Black PRU

I am truying to implement the MDB protocol on the BeagleBone Black, the problem is : the protocol requires a 9 bit data via UART (9th bit used to differentiate if the sent/received data frame is an ...
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BeagleBoneBlack PRU from Scratch

I am a newbie when it comes to embedded systems and I am an even bigger newbie when it comes to working with the BeagleBone Black (Rev C in my case). I want to play and discover the PRU on the BBB, ...
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How to identify a faulty peripheral before connecting to my Beaglebone microcontroller? Board damaged connecting to ADXL345

I was trying to connect ADXL345 via SPI interfacing to beaglebone black via a breadboard. The board was purchased a month back and was all good when connected to others like mpu6050. I suspect the ...
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CAN bus traffic is destroyed for unknown reason

I am a bit stuck with connecting several STM32F405 with BeagleBone black via CAN bus. Strange things happen when I connect 3 stm32 and 1 BB. I have checked that BB works perfectly with any ...
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Determine when Beaglebone has shut down (we we know when it's safe to cut the power)

As I understand, like most Linux systems, it's not recommended to simply pull the power from Beaglebone. Instead we should shut it down, either by pressing the power button or running a Linux command. ...
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Configuring UART TX and RX pins to accept CAN TX and RX signals

The microprocessor I'm using, the BeagleBone Black, has an option to send CAN messages to/from it through the UART Tx and Rx pins. I'm not sure, though, if this is a 1:1 translation (i.e. the UART TX ...
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STM3F405RG CAN bus issue

I encountered stange behavior of stm32f405rg while working with CAN. My setup: beaglbone black connected to stm over CAN bus. Data transmitted successfully, beaglbone is able to receive data correctly ...
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2 votes
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What is this communication standard I'm seeing? It looks like UART but with a third line

What the title says. I looked into flow control, as that seems like the obvious answer to "what are these extra lines in my UART communication?" But what I'm seeing doesn't really look like flow ...
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Why can't the bootloader save and log messages for us to view later [closed]

I have a problem whereby a remote BeagleBone device is taking hours to boot up. When it does, I don't see any problems in the kernel boot logs such as journalctl -b or journalctl -b -1 Without having ...
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4 votes
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Purpose for Shunt Resistor on Opto Isolator Input?

I was looking at a BeagleBone Black Cape and became curious on an input circuit to the BeagleBone GPIO (used for a NPN proximity sensor). Upon further reverse designing, I notice a // 220Ω shunt ...
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BeagleBone Black Driving NFETs w/GPIO

In short, I want to drive some NFETs directly from some of the BBB's GPIO. 3 of the NFETs will pass 1-3 Amps of D-S current and 1 NFET will pass <1 Amp from the D-S. As you may know the BBB's ...
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BBB Flashing Loop

So generally I have no problem flashing my BBB with the SD I have. I do it all the time, and it works on most board. However occionally it gets stuck in this "loop". It will flash the device ...
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Systems similar to TI's PRUs [closed]

I have been working with TI's PRUs on the am335x, equipped on the BeagleBone Black. I would like to know if other hardware manufactures offer similar systems. I am doing my Bachelor Thesis on this ...
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Beaglebone Black — Reading multiple HX711 / Load sensors

I have a BBB (Beaglebone black) connected to a few capes. I need to interface with 4 HX711 boards with loads sensors, I've yet to find anyone who has used any weight sensors with the BB; I've seen ...
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Accessing I2C address of ADT7516 ( Temp sensor )

I have a BeagleBone Green and an EVAL board of ADT7516. I connected them by SDA and SCL pins and as they are to be connected with the PC by the usb port, they will have a common ground. After this ...
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1 vote
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Method for Sending Multiple (16) Channels of Duty Cycle Modulated Signal over Medium-Long Distance

Problem What is the best method or industry standard solution for transmitting multiple channels (13 signal, 3 ground) of duty cycled modulated signals up to 25 feet. The data will be transmitted by ...
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Connecting Temperature sensor EVAL board (ADT7516) to the BeagleBone Green [closed]

I have a BeagleBone Green and an evaluation board of the temp sensor (ADT7516). I also have a 4-pin female jumper to grove 4 pin conversion cable. I am not an electronics student and have no idea ...
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3 votes
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Yet Another question on using GPIO to short a remote push button

OK, I bought this little remote-controlled Ac outlet thing for $1. It controls 3 outlets via RF. I didn't realize it was RF at first, but I currently have my BeagleBone Black doing a bunch of home ...
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1 vote
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Thermostats outputs to GPIO then to Furnace

I have a question on how to safely connect and detect Thermostats outputs to Controller's GPIO inputs (RasPi and BeagleBone). I've been looking up a lot and most of the cases it is showing me how to ...
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2 votes
1 answer
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How do you do a software reset of the am355x (like on the BeagleBone Black)?

Is there an easier way to do this than setting up a watchdog and waiting? Using only software (no tying a GPIO to the reset pin)?
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Digital Potentiometer Not Working

I am trying to control an AD5206 digital potentiometer on a PocketBeagle (smaller Beaglebone Black essentially). I have an entry in my device tree for spidev, and I ...
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Design Review: 3.3V Logic to 12V Logic (Uni-directional and Bi-directional)

I'm looking for feedback and improvements on my design below. Specific questions are at the end. I created this as an attempt to answer my own, previous question. From my feedback there, it seems like ...
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DCF77 - No Signal detected

I'm using a Conrad DCF77 to get RTC on Beaglebone Black and wiring it so: 1--> GND | 2--> VCC 3,3 V | 3--> One of the gpios (P8_11) To read the Signal of the DCF Antenn I wrote the code: ...
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3.3V Logic to 12V Logic (Uni-directional and Bi-directional) [duplicate]

I'm looking to understand how to convert between 3.3V logic and 12V logic, in each direction individually and bidirectionally. I know this question has been asked before, but I'm overwhelmed with the ...
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Stepper Motor Calculations

I am currently struggling to determine some parameters of a stepper motor I am using. I am trying to calculate the number of pulses per second I can deliver to the motor reliably. This is relatively ...
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Is there another way to interface with BeagleBone Black hardware

As an example, to turn on one of the on-board LED's you need to update the text file "/sys/class/leds/beaglebone:green:usr0" In writing some tests just turning on ...
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1 vote
1 answer
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Using Beaglebone Black to prototype commercial product

I am designing a system and it's safe to say I am a little out of my depth. The requirements of the project are as follows; drive 7" WVGA touch screen and generate graphics 4-20mA input 3 x 4-20mA ...
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4 votes
1 answer
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Beaglebone Black Power Switch Detection

I've looked around and found a bit of information regarding attaching a 3.7V lithium battery to the BBB (Beaglebone Black) but I haven't found an exact answer to what I am looking for. I understand ...
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Beaglebone: Unable to boot with custom cape

I made a custom cape (attached) for my beaglebone black and when I connect it, the beaglebone doesn't boot, only the power led turns on. I'm booting from an SD card and I have disabled the HDMI and ...
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2 votes
2 answers
414 views

Beaglebone Black LCD/TFT/display and I2C2

I am considering buying a 4D Systems I2C LCD for the BBB, e.g. a 7" touchscreen, which uses the I2C2 bus. The question is, will I be able to use other peripherals on I2C2, on a home made cape, ...
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Connecting 5V Joystick to Beagle Bone Black [closed]

I was recently trying to connect an simple analog joystick to test the ADC values being read by my Beagle Bone Black. Since range of analog input for BBB is 0 to 1.8 V I supplied 1.8 V to the 5 V ...
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How to interface matrix LED with beaglebone black

I'm a newbie to electronics and for my project I need to control a matrix LED with beaglebone black. I bought a LED click board (https://download.mikroe.com/documents/add-on-boards/click/4x4-rgb/4x4-...
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1 vote
1 answer
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Use BBB analog inputs with 0..5V or 0..10V

I plan to use the BeagleBone Black analog inputs for sampling of analog data. But there are some major problems for this: BBB allows a maximum of 1.8 V analog input voltage while I have 5 V or 10 V ...
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Can a 485 network work if the DE (driver enable) pin of the transceiver is always on?

We are using a Beaglebone Black with the Osso Cape (https://github.com/nexlab/Osso) for comunicating with other equipment using a 485 connection and Modbus RTU. The driver enable (DE) pin of the cape'...
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Connecting USB-powered Beaglebone to car's CAN bus through OBD connector using common signal ground

I want to connect my Beaglebone Black, powered from USB port on my laptop, to OBD connector present in my Ford in order to see CAN traffic with can-utils. ...
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1 vote
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Buying Low Volume Populated PCBs and Handling Passive PNs

New to Eagle PCB design. I plan on making a custom Beaglebone Black Wireless PCB, and so have pulled down the Eagle files. I'm a student and have a student license. This project will be too difficult ...
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Flash/obtain ROM code for Sitara on BeagleBone Black

How is the ROM code loaded/provided on the BeagleBone Black? I see a few possibilities: It is loaded on in TI's factory and is immutable [unlikely] It is flashed on during manufacture of BeagleBone [...
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Can I provided 3.3V regulated directly to the BBB

I have a project where I need to be mobile and I draw a lot of power (4 BBB, 5 Port switch, 26 cameras). All of the cameras and the control circuits run at 3.3V - I'd love it if I could just deliver 3....
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