Questions tagged [pi-zero-w]

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

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How to attach two raspberry pi zero w together with sepatate independent displays?

How do I attach two raspberry pi zero w's together with sepatate independent displays to function as "one computer with extended display on two panels"? The two displays are HDMI with usb touch (7 ...
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52 views

How to attach Air208 GSM micro sim card board to raspberry pi zero w that already has display attached on GPIO

I have a Air208 GSM micro sim card board that I want to attach to my raspberry pi zero w to make calls. The issue is that I already have a 3.5" tft display attached to the pi zero w via GPIO (header ...
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1answer
224 views

raspistill timelapse stops producing output

So I'm trying to run a timelapse for 24-36 (or until storage space is full) but raspistill seems to stop producing output after anywhere from 50-300 stills. raspistill -t 129600000 -tl 5000 -o tlapse%...
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69 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 ...
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1answer
137 views

Risks of powering short LED strip directly from GPIO

I am trying to understand the simplest ways to power a short LED strip of 30 WS281x lights. Most of the instructions I’ve found mention using a separate power supply for the LED’s, but is it ...
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1answer
92 views

Initialize CSPRNG on boot to bootstrap entropy faster

I found that when using the firebase_admin library, first time runs of my script would error running, but would eventually start working. The problem has been isolated to the way the Python ...
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0answers
16 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 ...
3
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1answer
109 views

What is the noise coming from pi zero?

I hear "futuristic" crackling nosies that are very familiar from movies. Not sure if it's coming from the pi or the power supply... the same sound is coming from BOTH the power supply and the pi. I ...
4
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2answers
1k views

Pi Zero g_mass_storage not recognized by some computers until after another computer recognizes it

So the basic issue is this: once the Pi Zero with g_mass_storage is booted up, as long as there is a power source for it (like a battery, so it won't shut off) I can plug it into any windows machine (...
2
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1answer
78 views

Speed up initial connection to AP through wifi

I have a Raspberry Pi Zero W-based device that records data from sensors. The device is mobile so it gets out of access point's range several times per day. When the device returns to the access ...
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1answer
35 views

Can't find /boot nor etc folder in downloaded NOOBS in SD Card. Need to add wpa_supplicant.conf file to connect to wifi on first boot in headless mode

I have downloaded NOOBS on an SD Card to install in my Raspberry Pi Zero W. I will boot it for the first time in headless mode (because I do not have access to an HDMI monitor) and for that i need to ...
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0answers
163 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 ...
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2k views

Raspberry Pi Zero W with USB modem using Ethernet to Connect Router to Internet

I have a Raspberry Pi Zero W V1.1, SD Ultra 32GB card with 2018-04-18-raspbian-stretch.img installed. A USB powered hub (with its own 5V 2A power supply) is connected to the Pi Zero W via an OTG USB ...
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0answers
134 views

Install CentOS 7.6.1810' on Raspberry Pi Zero HW

Have a Raspberry Pi Zero HW v1.1 and want to install CentOS 7.6.1810. When download the file CentOS-Userland-7-armv7hl-RaspberryPI-Minimal-1810-sda.raw.xz and after unzipping I use Etcher to flash the ...
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2answers
2k views

Reliable way to play sound (ogg, mp3) in Python, on Pi Zero W

I have been trying to find a reliable method to play sound on my Pi Zero W, in Python. By default, Zero does not have audio output, but I have set up an I2S amp and speaker, following this guide: http:...
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1answer
170 views

How can I diagnose a headless Raspberry Pi Zero W that hangs?

I'm trying to run my Pi Zero W as a motion detecting camera using RPI cam web interface but it keeps hanging after a few hours at most. Before it hangs, it can record motion detect videos and upload ...
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0answers
156 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 ...
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1answer
394 views

SSH over hotspot network?

I have looked through here a bit and seem to have a unique situation I'm trying to address. I have an iphone with my hotspot enabled. I connect to the hotspot with a raspberry pi zero w over wifi. I ...
3
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2answers
176 views

What is eating up my data?

I have a question regarding the data usage of one of my USB 3G modems. I am currently using a Huawei E303 USB 3G dongle in a Raspberry Pi Zero W, with a normal SIM-card. I am running the RPi without ...
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1answer
466 views

Installing Raspbian from NOOBS without a keyboard, mouse and display

I have a RPI 0 W, a 8GB Micro sd card with NOOBS on it. I want to install the Raspbian on RPI 0 W. Is it possible to do so with the help of my laptop? If yes, how should I proceed? If not, what else ...
5
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3answers
14k views

Boot Zero W from USB device

The older Raspberry Pi's (Pi 1, Pi 2 and Pi Zero) couldn't boot from a USB-device, but the Raspberry Pi 3 has support for it. The Pi and Pi 2 have semi-support for it (using an SD-card with a single ...
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1answer
70 views

RPi Zero W as HID keyboard disconnects after connecting

So, I have configured and reconfigured the Pi Zero multiple times now for it to behave like a HID keyboard. It appears as a keyboard as well, but as soon as it is connected, it gets disconnected. ...
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3answers
7k views

Raspberry pi zero W + DHT22 sensor

Trying to get the DHT22 sensor working on my raspberry pi zero W. I have connected everything as required, I checked like 20 times but just in case here is a pic: I used this links to figure out ...
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0answers
78 views

Make a portable HTPC with Tv tuner

How can I make a portable HTPC with usb Tv tuner? I've got a Raspberry pi Zero W with usb hub, and an USB Tv tuner. I want to use this in a truck, I mean I want to watch movies with kodi, and watch ...
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0answers
35 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 ...
2
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0answers
105 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=...
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1answer
111 views

Run headphones and speakers?

I have a pi zero w. I was hoping I could run an 8 ohm 0.5 watt speaker from a line level rca output or maybe run the speaker from a 186 ma(ithink???) headphone amplifier? This is from the justboom dac ...
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0answers
34 views

Erratic motor behavior from a Pi being controlled through a websocket

I'm in the process of trying to put together a small "robot" that can be controlled over the internet. I'm trying to get the code for the drive motor controls down now, and I've hit an odd issue. ...
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3answers
176 views

Using special pins as gpio

I would like to use I2C and SPI pins as a gpio on my raspberry pi zero w. To be more clear, BCM 3-5-7-11-13-14 pins on the link [1]. I want to disable I2C1, GPCLK0, SPI0, UART, PWM0. Is it possible ...
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2answers
133 views

DNS finds ip but cannot ping address

New to this so sorry for any mistakes. I’m trying to get my Raspberry Pi Zero to ping ‘www.google.com’ but I just get 100% packet loss. I can ping 8.8.8.8 perfectly fine, as well as my home router ...
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0answers
84 views

Pi Zero W as AP

I want to use Pi Zero as a compact router for classroom work. It can be quickly powered up and swithed off. It can both host some small web, and also serve as pathway to the Internet, as it is ...
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0answers
71 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 ...
1
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1answer
382 views

Pi Zero W Wifi and SSH turning off

I have several Pi Zero W all with the latest Rasbian, running headless. After a few hours I lose the ability to contact them via WiFi or SSH, they are however still running as logs show. Basically I ...
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0answers
255 views

MAX7219 7-segment via SPI not working

I am following these instructions to get a simple 7-segment display working: https://github.com/rm-hull/luma.led_matrix My problem is that as soon as one of the 3 SPI Pins are connected the digits ...
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0answers
52 views

Max number of DC motors supported on a pi zero w

I'm in possession of a pi zero w. I have purchased two L9110s modules and connected 2 coin vibration motors (80mA) on each of them. The modules are powered by an external power battery bank rated 5V ...
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0answers
75 views

raspistill quality issues: single photos vs timelapse

For some reason there seems to be a huge jump in quality when using the -tl switch for a timelapse over individual pictures. raspistill -t 1 -o /mnt/usb128/photos/test%016d.jpg -ex auto -awb auto --...
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1answer
369 views

Can the DS18B20 be parasite powered without external pullup?

I have a DS18B20 temperature sensor which I am trying to use in parasite power mode with only two wires (data line and ground) with my Raspberry Pi Zero W. I've connected it to the RPi in the ...
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0answers
80 views

StromPI UPS on Pi Zero

Has anybody used the StromPi UPS with a Raspberry Pi Zero, and if yes, which version? I'm asking because the Pi Zero is not in the manufacturer's compatibility list (probably not a big deal with the ...
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0answers
293 views

Use mobile as remote via Bluetooth

I got Libreelec on my Pi Zero W, and I want to use my phone as remote over Bluetooth. How can I do that?
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3answers
4k views

Raspberry Pi Zero W - no network interface found

I'm completely stuck. I have Raspberry Pi Zero W and I'm trying to get the built-in Wi-Fi to work. After a clean install of 2017-08-16 Raspbian Stretch, when I click on the Wi-Fi button in the top ...
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0answers
319 views

Stream video from Raspberry Pi Zero with fixed frame rate, any latency

I'm looking for assistance with wirelessly streaming video from a (headless) Raspberry Pi Zero and pi NOIR v2 camera module. I'd like to collect data for a machine vision application with a fixed ...
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0answers
311 views

Pi Zero freezes with using camera recording / motion detect programs

I am having problems with a wildlife cam project I am working on. setup: Pi Zero W Stretch 2018-11-13 Pikrellcam with settings: 1024x768 12 fps 3,5 Mbitrate However, the pi frequently freezes. I ...
0
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1answer
85 views

fbi application frozen and/or raspi frozen?

I'm running an electronic photoframe based on a Pi Zero W running Stretch lite 2018-11-13. The photoframe boots the auto login and starts a script that run "fbi" in loop to display images found in a ...
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3answers
8k views

Raspberry Pi Zero W can't connect to WiFi through desktop environment

I have a Micro SD card with 2017-08-16-raspbian-stretch on it. I confirmed that the cards content matched the img file exactly. Now I put the card into my Raspberry Pi Zero W and connected hdmi, ...
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0answers
97 views

Wrong X and Y touchscreen axis after screen rotation on Raspberry Pi 3B+ and Raspberry Pi zero w

I can successful rotate the screen with display_rotate=1 (and display_rotate=0 to return back to landscape mode). But, I cannot get the X and Y axis to work correctly after the rotation. How can I ...
0
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0answers
312 views

Raspberry Pi w/ Pi Cam streams video great to Mac but not to iPhone

I set up my Raspberry Pi Zero W to stream video using this tutorial on how to implement RPi-Cam-Web-Interface. https://elinux.org/RPi-Cam-Web-Interface I then set up the Pi to be an access point so ...
0
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2answers
292 views

What tool should I use to cut off the GPIO pins?

I would like the make the Pi Zero W smaller and cut off the part of the PCB that holds the GPIO pins. What tool should I use to do so? Is a Dremel/rotary tool too destructive? I'm thinking an XActo ...
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0answers
170 views

MLX90640 on an 800x480 screen

Has anyone attempted to set the display resolution of a Melexis MLX90640 thermal camera connected to a Raspberry Pi Zero to around the 800x480 or any other than the original 32x24? If so, how did it ...
1
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1answer
41 views

How to connect two raspberry pi zero w's to ond HDMI display

Has anyone successfully connected two raspberry pi zero w's together to one HDM1 touch display (7" for example)? Any tutorials available for this?
2
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2answers
3k views

Ubuntu 18.04 on Raspberry pi zero w?

I am wondering if anyone has successfully installed and ran Ubuntu Mate 18.04 on Raspberry pi zero w?? If so, can you guide me on how you accomplished it? I have an application in mind where I need ...