Questions tagged [pi-zero-w]

For questions specific to the Pi-Zero W (with WiFi and Bluetooth)

217 questions with no upvoted or accepted answers
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votes
1answer
659 views

Rasberry Pi zero and 3 bluetooth transfer speed is slow RFCOMM

I am trying to send a series of bytes from the Raspberry Pi zero W to the Raspberry pi 3 via bluetooth. Im using the PyBluez python package. I believe that Raspberry Pi Zero has Bluetooth 4.1 and ...
4
votes
0answers
903 views

Bluetooth PAN on the Pi Zero W

I have the following problem: I want to host a webserver on my Pi Zero W and access it over Bluetooth. To achieve this i tried to use PAN as underlying layer. The first time i followed this post. Most ...
4
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0answers
182 views

Check if a host device is connected to Pi Zero gadget

How can the Pi detect if a host device has been connected, and gather information about that device, when being used as a gadget (such as mass storage). It would be useful if I could detect this ...
4
votes
1answer
2k views

Camera Module V2 working on Raspberry Pi 3 but not on Raspi Zero W

I have a new Camera Module V2 that I tried to hook up with a new Raspberry Pi Zero W with this adapter cable. When I call raspistill -o test.jpg I get mmal: Cannot read camera info, keeping the ...
3
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0answers
84 views

DCF77 time signal emulator by Raspberry Pi Zero WH

This is my first post on this forum. Thanks for being welcomed into this community. I am struggling with my second project with a RaspberryPi. On Github I found a very interesting project of an ...
3
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0answers
345 views

What can set the system clock?

I'm testing various clock sources on a Raspberrypi Zero W with Raspbian Buster Lite. After removing the fake hardware clock sudo apt remove --purge fake-hwclock and disabling ntp sudo timedatectl ...
3
votes
1answer
81 views

Is my Pi Zero W overclocking? Why does it disconnect?

I've got a Raspberry Pi Zero W which is connected to a 4 relay module, servo motor, and IR sensor. It has two functions: first, it operates continuously, watching the IR sensor and, when tripped, it ...
3
votes
0answers
583 views

Raspberry Pi Zero W Alexa Microphone Not detecting, but speaker works

So I have looked online and I even got different mics and adapters to get this working, but it still doesn't work. I was able to successfully setup my Alexa Pi on the RPi Zero W, because when I boot ...
3
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0answers
3k views

Connect from Windows 10 to Raspberry Pi Zero over USB

I am trying to connect RPi Zero from Windows 10, Was following this tutorial https://learn.adafruit.com/turning-your-raspberry-pi-zero-into-a-usb-gadget/ethernet-gadget For some reason laptop is not ...
2
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0answers
25 views

USB via MAX3421

I am trying to get an additional USB port working by using the MAX3421 chip over SPI on a Raspberry Pi Zero W running raspbian. I have successfully installed the driver as a kernel module. The chip ...
2
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0answers
36 views

Raspberry Pi Zero WH dead

I have problem with my Raspberry Pi Zero. When powering on with sd card inserted nothing happens, no LED is flashing. The os on the sd card is working on another raspberry pi. The problem occured ...
2
votes
0answers
37 views

HDMI No signal on one tv but signal fine on another

I am using a pi zero w. I have used it on two TV's to date. It's been a month or so since I last used it and now it works on only one of the TV's. This wouldn't be a problem but I am giving this to ...
2
votes
0answers
82 views

Dropped wifi packets from Pi Zero W to Pi 3B+

We're trying to build a system where a master Pi 3B+ controls a dozen (or more) Pi Zero W clients - all running the latest raspbian (as of 18:00 EDT today) - in an isolated WiFi island (no ...
2
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0answers
126 views

Waking computer with raspberry pi zero usb keyboard gadget

I've been trying to set up a raspberry pi zero as a keyboard gadget, hoping i could wake a laptop (No ethernet) with it. I would also be able to encrypt it and send the password, which is an added ...
2
votes
0answers
308 views

Detect if a host is connected (gadget mode)

Device: Raspberry Pi Zero W v1.1 State: Pi Zero is running in gadget mode, acting as a USB Mass Storage device (seen by / mounted on a MacBook Pro). Question: What is the best way to detect whether ...
2
votes
0answers
144 views

Pi Zero W - cgroup_cpuset not available

Even though the contents of /boot/cmdline.txt seem right... $ cat /boot/cmdline.txt dwc_otg.lpm_enable=0 console=serial0,115200 console=tty1 root=PARTUUID=a435ca9f-02 rootfstype=ext4 elevator=...
2
votes
0answers
483 views

What is the maximum clients a Raspberry Pi 3 B+ access point can handle?

I have setup a RPi 3B+ as access point using this tutorial: https://www.raspberrypi.org/documentation/configuration/wireless/access-point.md I have a few dozens of RPi Zero's that connect to the AP. ...
2
votes
3answers
964 views

Connecting multiple load cells Pi Zero W to read individual values

I have a project in mind where I want to measure the weight and position of an item on a shelf. The idea was to mount the shelf on a load cell in each end and then get the weight and ratio between ...
2
votes
1answer
71 views

fork() Process Issue on Channel Switching via Rotary Encoder

I have KY040 rotary switcher(encoder) as shown below picture. It is the scenario that there are 5 radio stations(simple html url) in urls.txt which are read into stations list in radyoCS.py, at every ...
2
votes
0answers
1k views

Both speaker and microphone via I2S

I got the exact same error as someone asked on the raspberry pi forums. But no solution was found yet. https://www.raspberrypi.org/forums/viewtopic.php?t=183617 I've connected max98357-i2s to the ...
2
votes
0answers
462 views

Pi zero with Pi can video steaming stability issues

I wanted to setup my pi zero and pi camera as a rstp streaming cctv camera. I tried motion, but this ran the pi at 100% cpu utilisation and I didn't need motion capture as a I have a seperate (motion) ...
2
votes
0answers
550 views

RPi 0 w wifi does not reconnect

I have a RPi0w configured as a router, DHCP client and AP at the same time, with the onboard wifi. The versión is: pi@xxxx:~ $ uname -a Linux xxxx 4.9.35+ #1014 Fri Jun 30 14:34:49 BST 2017 armv6l ...
2
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0answers
81 views

pi zero W as remote ethernet jack / internet access for satellite TV receiver

I've got a pi Zero W that I'd like to use to support a wireless network for my satellite TV tuner. The tuner has an ethernet jack, but running cable to it is problematic... I've got a ...
2
votes
1answer
275 views

Pi Zero, Retropie on top of Raspbian?

I know you can install RetroPie on top of Raspbian on a Pi 3 but what about a Zero W? Do I need to get a different setup script and install RetroPie or do you just do everything the same way and it ...
1
vote
1answer
32 views

Pi Zero W Bluetooth Connection Getting Dropped

I have a Rpi Zero W with headless setup and I am trying to connect my bluetooth speaker into my Raspberry Pi W. I followed this Setup Bluetooth on Raspberry Pi I followed these steps to be exact 1. ...
1
vote
0answers
37 views

Isolate Raspberry pi from power supply on shut down

Ok Team I need to know if this circuit will work or if there is a better way. Use Case: I have a piece of machinery that is controlled via a Raspberry pi zero W. It just controls a relay board to ...
1
vote
0answers
74 views

pi zero with g_mass_storage configuration

working on a pi zero, i'm playing with the usb gadget mode. especially the g_mass_storage was very complicated to get it works. following this article: magpi i tried to add the usb g_mass_storage ...
1
vote
0answers
61 views

System doesn't discover bluetooth adapter

I have custom buildroot image built for Raspberry Pi Zero W. My primary goal is to be able to activate on-board blueetoth, however I seem to have immense problems achieving it. My main problem is that ...
1
vote
0answers
148 views

WiFi signal strength in a script

I have a need to obtain WiFi signal strength on a Pi0W. I have a PHP script and all works via terminal: php /var/www/html/blah.php (I use exec("iwconfig wlan0", $output_lines);) The script runs as a ...
1
vote
0answers
23 views

128x64 LCD install to Pi Zero W

This is my first Rasp project, so please be understanding. I have Raspberry Pi Zero W and 128*64 dot china LCD. I do not have any program done for the screen yet. When start my Rasp only backlight ...
1
vote
0answers
28 views

Are there wireless smart lights that can be directly controlled with a raspberry pi>

I am new to raspberry pi, so I apologize in advance if this question is very basic or is in the wrong place. I want to create one of those wakes up alarm clocks that slowly brightens the light in ...
1
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0answers
44 views

Is there a way to get DSI output on RPi Zero W?

I'm trying to make an inexpensive smartphone, So I don't want to buy a really expensive small HDMI display, so... DSI. But the pi zero doesn't have DSI output . I've looked into hdmi to DSI adapters ...
1
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0answers
297 views

Raspberry Pi Zero as boot keyboard USB gadget (libcomposite and macOS boot)

Since I have exactly the same issue and no solution so far, please allow me to repost the question by Charlotte J at superuser again on this board: I am trying to turn Raspberry Pi Zero W as a "boot ...
1
vote
1answer
53 views

Not accepting any new connections. Raspberry pi zero W

I am new to Stackexchange. I have been working on monitoring service(python based) on RPi Zero W and edited the /etc/rc.local file to execute the program during the startup. The program works ...
1
vote
0answers
45 views

Greengrassd service starting issue on Raspberry Pi zero device. it shows “Illegal instruction”?

AWS greengrass service configurations problem on Raspberry PI zero. i configured on RPI and when i start the greengrasss service with "sudo ./greengrassd start". It shows error like "Illegal ...
1
vote
0answers
348 views

UV4L huge CPU load on streaming audio

I'm building a little baby monitor using RaspberryPi ZeroW and UV4L and run into a little problem. I'm using WebRTC to cast video and audio to my browser from RPI camera (used facedetect demo, ...
1
vote
0answers
29 views

Floating point exception while upgrading via apt

When I attempt an apt upgrade on my Raspberry Pi Zero W I get the following output: Fetched 5,864 kB in 10s (580 kB/s) Floating point exception E: Sub-process /usr/bin/apt-listchanges --apt || test $?...
1
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0answers
118 views

How can I download a Pi image with Tensorflow Lite already installed?

This whole nonsense of cross-compiling is nuts. Can I just download an image of Raspbian for my Pi Zero W with tensorflow lite already installed?
1
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0answers
87 views

Pi freezes when running a script

I'm trying to set up a trap camera using a brand new Pi Zero W with Raspbian Buster but it freezes when I run the python scirpt. originally the code was a bit complicated with multithreading, email ...
1
vote
0answers
25 views

Raspberry pi zero as keyboard controlled over wifi possible?

Hello I want to have a pi zero W create a wifi hotspot(no internet connection). I then want to connect to the wifi hotspot and ssh into the pi. From there i want it to send keystrokes as a HID ...
1
vote
1answer
62 views

Why Raspberry Pi Zero W is missing to log data constantly every second?

I'm doing a project where I want to record IMU (Inertial Measurement Unit) readings. I want to use pretty high sampling frequency and I'm using Raspberry Pi Zero W to send PWM signal of 800Hz to ...
1
vote
1answer
41 views

Wireless Transparent Proxy Troubleshooting

I'm someone who has very little technical experience but became interested in the idea of a transparent Tor proxy. I'm well aware that this isn't a secure implementation but I thought I could learn a ...
1
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0answers
45 views

Cannot SSH from pi zero to pi zero over OTG USB

I am running Raspbian Stretch Lite Linux testpi1 4.14.98+ #1200 Tue Feb 12 20:11:02 GMT 2019 armv6l GNU/Linux I am able to SSH to my pi zero over the OTG USB cable as many guides online have ...
1
vote
0answers
77 views

wifi setup after changing wifi-direct settings

I followed these wonderful instructions on setting up wifi-direct, but now I need to be able to set up regular wifi after that. Here's what I'm trying to do. Trying to set up the Pi Zero W to do what ...
1
vote
1answer
118 views

Can't get HC-SC04 Sensor to work

I'm using a Pi Zero W with a soldered project board to interface two ir Sensors and trying to make an HC-SR04 sensor work. I'm using the 5v supply to power all three sensors. I've set up a Motion.py ...
1
vote
0answers
81 views

DS18B20 temp sensor works on Pi 3B+ but not Zero W

I have a breadboard prototype working with a cabled (waterproof and regular temp) DS18B20 sensor and a AM2302 sensor on a 3B+. All is well with it recording at a set interval from each sensor. I'd ...
1
vote
0answers
19 views

Wifi stops working (on my laptop) after connecting rpi as ethernet gadget

So I am using a raspberry pi zero W as an ethernet gadget. I got ssh working and the RNDIS/Ethernet Gadget thing working so I can log into the pi using pi@raspberry.local. I even got VNC to work so ...
1
vote
0answers
157 views

Error unknown machine command despite compiling without errors

I recently made a project using opencv 4 on my raspberry pi 3 b+, but then decided to port the whole project to a new raspberry pi zero, as I want to make it a permanent setup and want to keep my py 3 ...
1
vote
0answers
50 views

Command to open Wireless and Network Settings GUI?

I want to add a button on the Main menu to open the Wireless and Network Settings control panel. I am using Raspbian Jessie with all the defaults, aka lxpanel. I'm using the RPi0W The reason why I ...
1
vote
0answers
106 views

Toggle UART (enable_uart=1) without rebooting

Which pins can can I manually toggle to enable or disable UART on a Raspberry Pi Zero or 3B+ without rebooting? As I understand, /boot/config.txt is parsed before Linux is started, but I don't mind ...

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