Questions tagged [hat]
A "hat" is an add on board designed specifically to fit on top of the pi via the GPIO header. They have a small EEPROM chip which is used to configure them, but may be built to serve any purpose.
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What 5G m.2 cards will be compatible with a m.2 HAT+ adapter board for the Raspberry PI 5?
The following HAT+ is available on Waveshare:
https://www.waveshare.com/pcie-to-4g-5g-m.2-usb3.2-hat-plus.htm
Now on Waveshare they have listed a series of compatible 5G modules:
RM502Q-AE
RM520N-GL
...
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Raspberry Pi 4 Model B shuts down when HAT is connected
I have been using the Raspberry Pi for a robotics project, and I'm using the Pimoroni Inventor HAT Mini (https://shop.pimoroni.com/products/inventor-hat-mini?variant=40588023464019) as a way to power ...
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Reuse old kindle display [duplicate]
Is it possible to reuse the e-ink display of some kindle models with the raspberry pi?
I want to buy an used kindle from eBay, dismount the screen and use it with my raspberry pi. Are there HATs or ...
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Using two Pi 5s together to handle four cameras
I am not sure how to do this, but what I wanted to do is:
Using two Raspberry Pi 5 with each connecting two cameras.
The four cameras should be able to simultaneously recording 4k or HD video at at ...
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A series of problems with Raspberry Pi 5 NVME m.2 hat
My Specification:
NVME HAT: Suptronics X1002 Raspberry Pi 5 nvme M.2
Installed SSD disk: Samsung M.2 970 EVO Plus 1000 GB PCIe Gen 3.0 x4 V-NAND 3bit
Installed OS: Ubuntu Server
Problems I ...
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Getting Energenie Pi-Mote IR control board to work on Raspbery Pi OS Bookworm
I've bought an Energenie Pi-Mote IR control board for controlling my TV from a raspberry pi 4b and I'm struggling to get it to work. The manufacturer supplied user guide (https://energenie4u.co.uk/res/...
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Establish Audio Connection between raspberry pi 3 and 4G HAT with a TRRS cable
I have a Raspberry Pi 3 with an external USB soundcard plugged in. The RPi is connected to a 4G hat (Waveshare SIM7600 4G HAT). When I plug in a headset to the AV Jack of the hat, I can send and ...
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PoE hat for PI 5
I have a poe hat (b) made by waveshare for my rpi 3/4. I really like it because of the oled display that outputs the IP adreess,cpu temps and things like that. My question is, is it compatible with ...
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Pi4J support of 16 channel PWM / Servo Hat
I have a Raspberry Pi 4 and am programming it with the brilliant Pi4J library
To implement my table tennis robot project I need:
3 brushless dc motoros for the ball firing motors.
2 servos for up / ...
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How to connect Smartelex 10D DC Motor Driver HAT for Raspberry Pi 3 with 24V 100W motor and 24V 10Ah battery?
I recently acquired the Smartelex 10D DC Motor Driver HAT for my Raspberry Pi 3, intending to control a 24V 100W motor powered by a 24V 10Ah battery. However, I'm uncertain about the wiring ...
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Pi zero iot hat 3G 4g modem
Firstly I’ve looked everywhere and tried and tried to no avail. I’ve set up the iot bit hat:
https://www.instructables.com/PiAnyWhere-4G-LTE-Hat-for-the-Raspberry-Pi/
To hopefully initiate the pi ...
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can you have a heatsink on a raspberry pi 5 whilst also using the pcie m.2 hat?
The Raspberry Pi 5 has a PCIe 2.0 interface that requires a separate M.2 HAT to use with an M.2 drive, however, looking at pictures of the Raspberry Pi 5 with the hat I'm left to wonder... will a ...
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Waveshare 13460, GSM HAT doesn't power on
Got this guy waveshare, which stopped powering ON after the first run(which was successful). The power LED is ON, but nothing happens after I press the PWRKEY. I got other identical module which turns ...
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Waveshare ePaper display via IT8951 hat driver for Raspberry pi 4 model B
I bought the 10.3 epaper display which I am trying drive it from a Raspberry Pi 4. The official wiki instructions (https://www.waveshare.com/wiki/10.3inch_e-Paper_HAT) is using BCM2835 which I assume ...
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Motor control for multiple raspis
I am building a Lego robotic arm with several motors. I plan to buy two Build HATs which can host up to 4 motors/sensors each. Since those HATs are not stackable, I presume I need to use 2 Raspis. The ...
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Are there any other lower-hats other than the HatDrive! Bottom?
Pineberry makes a HatDrive! Bottom. This seems like a very niche product that mounts below the Raspberry Pi 5, and in mounting below the Pi 5 it seems to be the only product designed like this.
Are ...
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When evaluating a case for Pi with an upper-hat, are all upper-hats the same dimensions?
I'm looking at getting a Pineberry HatDrive! Top. This is a hat that fits on top of the Raspberry Pi 5. Does this fit in any case that fits a Raspberry Pi with hat?
It seems unlike the PineBerry lower ...
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GSM/GPRS/GNSS HAT issue
I have a HAT from Waveshare which i am using only for GPS.
The GPS output from minicom looks like this, it was in use for more than 4 hours straight, but nothing changed.
How do I troubleshoot this?
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how do i run a script when the cpu gets too hot [duplicate]
i need to send commands to my hats that control fans and a little warning LED if the cpu goes above or below a specified state of temperature
https://unix.stackexchange.com/questions/756721/raspberry-...
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Empty Pi Hat/Bonnet
Does anyone know where to find a Pi Hat or Bonnet that is empty? By that I mean a PCB that has the connectors to solder stackable headers onto, but no connections just raw PCB? The reason I want ...
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WaveShare e-Paper HAT button covers
I have a WaveShare 2.7inch E-Ink display HAT for Raspberry Pi that includes 4 buttons.
They work very well, but I was wondering if there was a "standard" way to add some sort of cover to ...
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Waveshare 2CH RS232 HAT on Raspberry pi 4 not sending nor receiving message
Hi Raspberry pi enthusiast,
Recently i'm using 2 Channel RS232 Hat from waveshare placed on top of raspberry pi 4. And i already follow all the instruction on this waveshare's wiki. but, until right ...
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i2c_arm bus initialization and device-tree overlay
I've built a Pi1541 HAT, just for fun, and am now playing with the device-tree autoconfiguration in Raspbian. I've made an overlay that autoloads during boot, based on the EEPROM contents, and that ...
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Current draw Raspberry Pi 4 measurement results. Does anyone have more data?
I thought this would help with designing HAT power. Does anyone have similar measurements while running software and connected devices?
Scant information on the current draw. I measured through the ...
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Raspberry Pi HAT drivers
This may be a simple question but I am new to all this. Do the HAT drivers only work with Raspberry Pi OS or will the work with any suitable Linux?
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Can I use the HAT eeprom pins as a uart?
I have a Pi 4B and I want to use the HAT EEPROM I2C pins for the uart 4 that is behind them. This is a board just for me and all my other uart locations are in use. How do I disable the EEPROM scan ...
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HAT EEPROM address is said to be 0x50, but 0xA0 is most common when A0-A2 are tied low [closed]
CAT24C32 is a widely recommended HAT EEPROM. The data sheet says the 4 MSBs are 1010 or Ah. But 0x50 is widely stated to be the correct EEPROM address. Some who recommend the CAT24C32 also say the ...
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LiPo Battery HAT behavior
I was reading the description for LiPo Battery HAT for Raspberry Pi and it at best seems very unclear to me:
This is not a UPS! The Raspberry Pi will restart when you connect it to the Pi.
What does ...
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Method to switch one GPIO device/HAT/pHAT between two Raspberry Pis
I'm looking for a method to share one GPIO device/HAT/pHAT between two Raspberry Pis. For example, I'd like to connect one HyperPixel 4.0, which attaches via the 40 GPIO pins, to two different ...
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HAT EEPROM DTB and RTC on I2C0
I'm having a problem creating a DTB for a HAT auto-configuration.
I have a DS3231 RTC module attached on I2C0 (GPIO0 and GPIO1). It incorporates an AT24C32 EEPROM at address 0x50.
To get it working, ...
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Logging data from High Precision AD/DA board using Raspberry Pi 3B
I have a High Precision AD/DA board from waveshare with Raspberry Pi 3B (running on Raspbian). With this setup, I get a sampling rate of above 20KPS at my terminal display.
However, I can write only ...
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Raspberry Pi Zero 2W in gadget mode with USB HUB HAT
I have a Raspberry Pi Zero 2W in gadget mode that can transmit data and emulate a mouse or keyboard.
But when I connect a USB HUB HAT, I'm not able to transmit data. I'm getting [Errno 108] Cannot ...
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Use Adafruit PiTFT as hat with Adafruit DS3231 in a case
I have a raspberry pi 3 A+ connected to an Adafruit PiTFT Plus 320x240 2.8" TFT + Capacitive Touchscreen and an Adafruit DS3231 Precision RTC Breakout for keeping time. Both are connected using ...
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Adafruit_SSD1306 and Adafruit-BBIO legacy install issues
trying to get my 0.91 oled v1.0 geekpi expansion board hat to run in general/autorun when powered on, the OLED and the Leds, however im having tis pp up everytime i get to the OLED , any help is ...
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Get Measurements from Battery/Solar Setup
I'm planning a setup with an rpi3b+ and the pijuice hat (battery) and pijuice solar module. It is key to my project that I can access the following data digitally i.e. in the pi:
current power ...
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Pi 4, Hifiberry, and touchscreen power
I recently finished my basement and am in the process of getting it all configured, and one thing I wanted was to build a Raspberry Pi streaming device. I got a 3D printer for Christmas and found this ...
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LTE-HAT GPIO SIM7600
I´m able to connect to the internet via the SIM7600 4G HAT modem when it´s connected to USB. Now I´d like to achieve the same without USB but only with the GPIO connection. Somehow the manual (https://...
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Looking for information about a generic 480x320 Chinese TFT display pictured in this question. Schematics, new ili9486 english spec
The picture was "borrowed" from What have you done to make generic TFT touchscreen display work?
I'm trying to write a driver to use the module from a Pico. I have a preliminary spec I ...
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PoE+ Hat, fan not spinning until level 3
I’m not sure if it’s a problem or not, but here is what’s happening:
The fan on the PoE hat only starts spinning at level 3, and louder at level 4. On level 1 and 2, the fan it’s spinning at all. It’s ...
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Control 2 steppers and 1 servo a the same time on a motor Hat
Basically, I have a raspberry pi 4 with a Motor Hat to control two stepper motors. The whole thing looks like this : https://i.sstatic.net/SIjzI.jpg
Now I want to connect a servo motor, and I know ...
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Raspberry Pi Zero W not interacting with GSM HAT
I have Raspberry Pi Zero W and this hat.
I did the following things:
disabled login shell through serial in rasp-config
enabled serial port hardware in rasp-config
removed console=serial0 in /boot/...
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How to boot and safely shutdown with a button when WAKE_ON_GPIO=0
1. Description
To boot and shutdown my pi I have been using a button shorting GPIO 3 an GND. However after shutting down the pi, the fan shim and HDD keep on running. To solve this I've edited the ...
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Why is a Justboom DAC HAT no longer recognised after an upgrade to a Raspi 3B+?
I recently replaced my faulty old Raspi 3B with a 3B+, attached the two HATs I've got (a JustBoom DAC HAT sound card and an S.USV Advanced), plugged the SD card into the new one, upgraded the Raspbian ...
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Sending Digital Audio Through GPIO Pins
I currently use my raspberry Pi as a Spotify music streamer for my Hifi system. I send digital signal out through the USB port to a Digital to Analog Converter (DAC), and then into an Amp, and finally ...
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RPi4 won't power on from 5V if any load is present on 3V3
The short version:
Raspberry Pi 4B, rev 1.1, doesn't turn on when provided with 5V on the pins 2&4 if any load is present on the 3V3 (pins 1&17).
However, powering the Pi from a USB-C source (...
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SIM7600 LTE Modem via GPIO
I am building a drone that should connect to LTE internet with waveshares SIM7600 HAT.
Every guide I see online for using the HAT as a LTE modem is using a USB connection between the PI and the HAT.
...
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X728 UPS email setup
I`ve got an X728 ups hat and is working right, using the .sh provided by geekworm.
What I expect next is to write some code make the .sh to send an email when power is down or up, or when batteries ...
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Waveshare e-paper demo not working - Raspberry Pi Zero W 1.1
I have a Raspberry Pi Zero W 1.1 and I bought this e-paper HAT and monitor combo from waveshare
I have Installed Raspberry Pi OS headless and configured everything according to this official wiki
...
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edit UPS HAT safe shutdown script
I write this since I need advice with an RPi Hat that I purchased and the assistance told me to find a solution myself!
I purchased an UPS HAT (UPS3 from geekworm).
I need to perform some actions ...
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hdmi_cvt ignored on my boot/config.txt
I am testing a LCD HAT ( ST7735S ) that I bought and it is working great with fbcp, but I can´t get raspberry pi os to run at native screen resolution ( 128x128 ). I´ve been reading all documentation ...
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