71 votes
Accepted

How do I make serial work on the Raspberry Pi3 (PiZeroW, Pi4 or later models)

This answer is still correct, and explains in more detail the nature of the changes, but most users of current Raspbian should just run sudo raspi-config Select Interfacing Options / Serial then ...
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  • 54.1k
43 votes
Accepted

Power consumption of Pi Zero W?

Based on the measurements made by RaspiTV, here are some estimates: 100 mA: No peripherals connected, WiFi And Bluetooth off 160 mA: Bluetooth turned on 170 mA: WiFi turned on 230 mA: Camera ...
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  • 1,008
30 votes

How to connect to WiFi without reboot?

As of 2018, the previous answers don't work anymore, you need to run the following command: sudo wpa_cli -i wlan0 reconfigure Source: https://www.raspberrypi.org/forums/viewtopic.php?t=198274#...
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29 votes

How to connect to WiFi without reboot?

I too saw this issue with my RaspberryPi Zero W using 2017-09-07-raspbian-stretch-lite. Updating the wpa_supplicant.conf file, sudo wpa_cli reconfigure, and sudo systemctl restart wpa_supplicant did ...
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21 votes

How do I make serial work on the Raspberry Pi3 (PiZeroW, Pi4 or later models)

finally this got work for my pi3 (os: debian jessie) please follow these 6 steps carefully. Step 1 - Install Raspbian Jessie onto a SD card and boot the Pi when connected to a network Login via ...
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21 votes
Accepted

Set up a Raspberry Pi Zero W without monitor or ethernet module

That's a tough one. The WiFi won't automatically connect. So I would try the following: Image a micro SD card with the Raspbian OS image using Win32DiskImager. Manually configure your WiFi from ...
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  • 1,008
22 votes

Raspberry Pi Zero W headless using wpa_supplicant.conf not working

The accepted answer does not give a solution to anyone having this problem. From a point on (maybe debian jessie?), the /etc/wpa_supplicant/wpa_supplicant.conf requires these lines on top of the ...
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15 votes

Power consumption of Pi Zero W?

I'm currently testing my RPi Zero W with temp, humidity and barometric pressure sensors hooked up. I have two 3,000 mAh batteries wired in parallel. They also go through an Adafruit regulator. Once I ...
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  • 151
15 votes

Set up a Raspberry Pi Zero W without monitor or ethernet module

You are looking for information on running "headless". There are details on this on the raspberry pi site. https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=161202 Basically put a file, ...
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11 votes

How do I make serial work on the Raspberry Pi3 (PiZeroW, Pi4 or later models)

Naseer's answer is correct but a bit elaborate if you just flashed the latest rasbian. All I needed to do, is just to add the following line to my config.txt (from e.g. windows where you plug in the ...
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  • 211
11 votes
Accepted

Raspberry Pi Zero W as a WiFi repeater

This setup is DEPRECATED and no longer maintained! Look at Access point as WiFi repeater, optional with bridge for a more flexible setup. It is possible to use the wifi device on a Raspberry Pi as an ...
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  • 40k
10 votes

How do I make serial work on the Raspberry Pi3 (PiZeroW, Pi4 or later models)

Raspberry Pi4 UART The Pi4 has 4 additional UART (uart2-uart5) in addition to uart0/1 on the older Pi (only one of which can be used as they share GPIO). Functionally these are equivalent to the fully ...
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  • 54.1k
10 votes

How can I find the MAC address of my Wi-Fi interface?

Enter in terminal/console ifconfig wlan0 At the end of the first line should be the hardware address aka MAC. Here a sample output (German locale): pi@RasPi0w-1:~ $ ifconfig wlan0 wlan0 Link ...
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  • 356
10 votes
Accepted

Ubuntu 18.04 on Raspberry pi zero w?

According to the Mate website you will need a Pi2B / 3B(+) or later to run any Mate version. It does not run on the single processor (BCM2835) models Ubuntu MATE for the Raspberry Pi 2 and Raspberry ...
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  • 3,322
9 votes
Accepted

Which distro for Raspberry Pi Zero W?

If you don't need the graphical capabilities of the full Raspbian distro, I would recommend Raspbian Lite. Raspbian, has the largest user base and hence the most projects and tutorials available. The ...
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9 votes
Accepted

How can I find the MAC address of my Wi-Fi interface?

The following is a fragment of a bash script I use to determine the MAC of Ethernet, or if this does not exist of WiFi (for Pi Zero W). It does not rely on ifconfig or any other method of detecting ...
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  • 54.1k
8 votes
Accepted

Switch between wifi client and access point without reboot

Access point and client mode are both running as services so we should use systemd-networkd to switch off one service and switch on the other. With its options we are able to do it without rebooting. ...
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  • 40k
7 votes

Set up a Raspberry Pi Zero W without monitor or ethernet module

You can drop in a wpa_supplicant.conf file in the boot directory before installing the SD Card into the Pi. When the Pi boots up, the file /etc/wpa_supplicant/wpa_supplicant.conf will be overwritten (...
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7 votes

How can I find the MAC address of my Wi-Fi interface?

Many distros is replacing ifconfig with ip so I would discourage the use of ifconfig. To show the wlan0 interface: ip link show wlan0 or cat /sys/class/net/wlan0/address Ref: https://www.linux....
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  • 2,458
7 votes

Using 5v device on 3.3v

This device is and open collector sinking (see the datasheet). That mean that you need to connect a pull-up resistor on the output. So if you connect the output pull-up resistor to the Pi 3.3V and the ...
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7 votes
Accepted

Do I need soldered headers or can I just use male breadboard pins?

They will need soldering to the VEML6075 otherwise the connection will be intermittent at best and more likely non-existent.
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  • 1,181
6 votes

No video for Raspberry Pi Zero W

Same issue a few days ago. Order of plugged in peripherals mattered. Making sure video out was connected before connecting power.
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6 votes

RPI zero W as both Wifi client and access point

It is perfectly possible. Look at the link. Note that the channel used must be the same on the access point and on the Wi-Fi. link rpi3 wifi-client-ap
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6 votes

Set up a Raspberry Pi Zero W without monitor or ethernet module

You can SSH in from USB after some configuration. This assumes you're not using NOOBS. Doing this with a NOOBS SD card is a little harder and (to my knowledge) impossible on Windows. First, the ...
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6 votes
Accepted

gpiotest problem and gpio 30

That is a fault in pigpio/gpiotest and/or the hardware revision returned by the Pi Zero W. gpiotest relies on pigpio to tell it which GPIO are safe to write. pigpio relies on the hardware revision ...
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  • 67.3k
6 votes

Cannot set up WiFi on Raspberry Pi Zero W running Stretch

To get the WiFi working on a Pi Zero W only requires minimal config for Raspbian Stretch. The only file you need to modify is /etc/wpa_supplicant/wpa_supplicant.conf and this file needs to contain ...
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  • 794
6 votes
Accepted

Miniconda for ARMv6 (Zero W)

Berryconda is the way to go! See https://github.com/jjhelmus/berryconda
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  • 211
6 votes

How to connect to WiFi without reboot?

I'm using a Raspberry Pi 3 with 2018-03-13-raspbian-stretch and my issue is marginally different, but I found a solution, so I think this can help you too. I boot the RPi with /etc/wpa_supplicant/...
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  • 111
6 votes

Does the Raspberry Pi Zero v1.3 support TensorFlow?

I assume you're referring to this GitHub issue, in which the following is stated: It looks like Pi Zero isn't going to work for TensorFlow, unfortunately. ARMv6 just doesn't have the right ...
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  • 6,198
6 votes
Accepted

"Raspberry Pi Zero W" version Help

The Pi Zero W v1.1 does come with the 15-pin MIPI camera interface (CSI) connector - it is just not labelled as it is on the Pi Zero v1.3. Notice that this is the Pi Zero without WiFi, thus there is ...
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  • 15.5k

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