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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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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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78 views

Any Issues Getting BeagleBone Black Wireless to run off of LiPo with Diode Fix?

This helpful question pointed me into the right direction for powering the BBB with a 3.7V LiPo battery. However, as this answer demonstrated, I won't be able to give the WiFi/BT module power in doing ...
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42 views

Building Starterware projects in CCSv8 using GCC

I'm new to BeagleBone and Code Composer Stadio; I want to build a Starterware Project in CCSv8; I installed Cygwin GCC and Linaro in my computer; I follow the instruction of below TI Wiki page and ...
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48 views

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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1answer
120 views

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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1answer
192 views

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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1answer
56 views

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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1answer
70 views

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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1answer
85 views

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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3answers
249 views

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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1answer
65 views

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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1answer
94 views

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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76 views

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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1answer
662 views

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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1answer
66 views

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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2k views

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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281 views

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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1answer
71 views

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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1answer
330 views

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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1answer
419 views

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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1answer
272 views

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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2answers
300 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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1answer
181 views

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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1answer
399 views

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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1answer
2k views

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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2answers
879 views

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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2answers
1k views

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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1answer
47 views

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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2answers
787 views

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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1answer
200 views

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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2answers
622 views

Assembly language: Ampersand before a register

I'm trying to program the Programmable Realtime Units (PRU) on my Beaglebone Black in assembly language. Here is the instruction set, which comes in two flavors: ...
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3answers
310 views

Powermanagement of a minicomputer in an automotive vehicle by engine start/stop and voltage threshold detection

Revison 1.3 (New circuit, more background information added, PCB made and tested, it WORKS) Background: I would like to use a BeagleBone Black (=Minicomputer) for data acquisition in an automotive ...
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290 views

Possible to use both CS1 and CS2 for SPI1 on Beaglebone?

I need to connect two SPI devices to Beaglebone. According to the documentation both SPI1_CS0 and SPI1_CS1 are available on the extension header: SPI1_D0, SPI1_D1 and SPI1_SCLK are available on P9[29]...
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1answer
395 views

Beaglebone Black - DC Motor causes ADC to hang?

I'm working on a regenerative-braking project with a DC motor. My Beaglebone Black drives a small DC Motor using a TB6612FNG motor driver from Sparkfun (datasheet): Everything runs fine except that ...
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375 views

No output for C++ GPIO code for beaglebone black

could anyone tell what could possibly be wrong in the following C++ code for enabling and setting pin no 49 (p9_23). I am directly checking the output on multimeter. ...
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3answers
625 views

How can I connect BeagleBone to 2 slaves with 1 “Chip Select” pin?

I have a BeagleBone white and I want to use it as a master which is connected to 2 slaves via an SPI connection, besides SCLK, DIN, and DOUT there is one pin of chip select "CS" "just one" and I need ...
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1answer
431 views

Beaglebone Black - Maximum current supplied by 1.8V analog rail (Pin P9_32)?

On the Beaglebone Black, what is the most current that the 1.8V analog rail (pin 32 on header P9) can supply? I can't find it in the System Reference Manual. I would've expected to find it in ...
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1answer
863 views

How to check currently which PWM device is active and in which pwmchip on BeagleBone Black?

I would like to control a servo motor using PWM. I have loaded the following .dtbo's in the slots in bone_capmgr directory as shown below: ...
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1answer
602 views

Beaglebone PRU PWM to Audio Signal

I was wondering if its possible to convert the high frequency PWM output from a Beaglebone Green's PRU into an analog audio signal. I was looking at building a low pass filter and I was wondering if ...
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1answer
1k views

BeagleBone Black won't power up from USB

I have been successfully using BBB powered from the USB adapter until now. I had to do some restart, and then the board won't power up (the PWR led blinks once ...
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2answers
410 views

Connecting the Beaglebone Black to the KK Mini flight controller

The flight controller needs to be sent 4 PWM signals at greater than or equal to 5 volts. Since the Beaglebone Black(BBB) GPIOs can supply only 3.3V I needed to change the signal from a 3.3 volt one ...
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1answer
162 views

Integrating Gefran Linear Potentiometer PY1 with Beaglebone Black

simulate this circuit – Schematic created using CircuitLab I want to connect one Gefran Linear Potentiometer with Beaglebone Black for displacement measurement purpose. The signal conditioner ...
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3answers
5k views

Protection of BeagleBone Black from eMMC corruption on power loss

I'm considering an application where a BeagleBone Black, preferably running one of the recommended Debian images loaded in eMMC, is powered by a 5V source that can be removed at any moment. I want to ...
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2answers
260 views

Is hobby relay adequate for air conditioner automation with microprocessor

I'd like to use a Beaglebone Black(3.3v Logic) plus a 3.3V to 5V logic level shifter(74HC125) to control an opto-isloated Songle Relay that has the following specs: Rated Resistive load: 10A 125VAC; ...
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1answer
739 views

Inconsistent GPIO values on Beaglebone Black running Debian

I'm trying to use GPIO on my Beaglebone Black, but I'm running into some behavior I don't understand. I have two pins (gpios 27 and 61) configured to input with ...
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1answer
306 views

Set ADC input to high impedance

On a early version of the system I'm working on, an Arduino Mega was being used to read some analogue values using its ADC. Something critical to the application was for the ports to be always in high ...
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1answer
368 views

Design for Multiple I2C slave devices

I'm doing a PCB in which I'm using the Beagle Bone Black to interact with multiple I2C devices. I have attached a schematic. Out of the many I2C devices, I'm connecting some using TI's I2C switch ...
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1answer
207 views

USART between Atmega16 and Beaglebone black

I'm working on a project which involves me to send data from AVR atmega16 microcontroller to a beaglebone black. I had written a code for the atmega USART but when connected, the beaglebone black ...
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2answers
725 views

Generating 8 analog signals from microcontroller [closed]

I want to generate 8 analog independent signals from a microcontroller, such as a BeagleBone or STM32. In my research, I found that I can use an external multi-channel DAC and interface it with the ...
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1answer
1k views

Sending AT Commands to Remote XBee using python-serial

I have connected coordinator xbee to serial port of beaglebone i.e . tx and rx of beaglebone. My router's D0 pin is connected to relay. I want to remotely disable or enable the D0 pin. For that i am ...