Help pls
So I downloaded the emulator and ROMs but when I open the game the game crashes than I open the game once again and the emulator crashes any fix?btw I’m on iPhone 12 iOS 17
[link] [comments]
So I downloaded the emulator and ROMs but when I open the game the game crashes than I open the game once again and the emulator crashes any fix?btw I’m on iPhone 12 iOS 17
Hello there, I recently bought a RasPI 3.5-inch TTF touch module and am facing issues using it. The module, even after all drivers are installed, does not display any output. The guild on the website also does not go into detail on how to troubleshoot it and I was not able to find any useful info on debugging this issue.
I will list out everything I have done until now: - Reinstalled Raspbian Desktop image. - Configured the Xserver to work (even though the driver install script does it). - Tried to manually display an Image (this is interesting and I will further explain this below). - Used Python to try and display an image.
So at first, I thought while installing it, I followed the standard procedure and it did not display anything other than a black screen with an _ in it. next, I tried to delete everything and then reinstalled it, but still no luck. Next, I removed the image and used a fresh image, no use. then I tried using this command: ``` sudo fbi -T 1 -d /dev/fb1 -noverbose -a /home/pi/test_image.png
``` to forcefully display something and when I did this a terminal interface got printed but was not usable, then I figured the framerate was flicked so, I tried changing the refresh rate that also did not work.
Now I am lost on what to do. Any suggestions will be appreciated.
I am using a rasp pi zero 2 w for this.
My goal is to use the PWM signal of a raspberry pi to control the speed of a 12V 0,24A DC fan. The drawing below shows how I've wired everything up. I purchased a cheap mosfet module off of aliexpress: https://de.aliexpress.com/item/1005005625110568.html Amazon carries them too: https://www.amazon.de/gp/product/B07HBQZ9BK The module uses a FR120N mosfet. Link to datasheet: https://pdf1.alldatasheet.com/datasheet-pdf/view/1223399/VBSEMI/FR120N.html I use the pigpio python library to control the duty cycle of the pwm signal at 20kHz. When using a multimeter the readings (RPi PWM - RPi GND) perfectly correspond to the duty cycle I set in the code. The problem: The voltage readings across the fan do not match the duty cycle at all. At 50% duty cycle I would expect 6V but I get almost the max voltage already. (See table below) In summary I am able to control the duty cycle of the PWM signal but the output of my mosfet module is not what I expected. The subjective fan speed matches the measurements of VFan (meaning there is no observable change between a duty cycle of 50-100%) I understand that a minimum average voltage to turn on the fan is needed but why does the fan get about 6 V at 20% duty cycle and not at 50%? Why is there minimal voltage change across the fan from 50% to 100% duty cycle? Why does the voltage across the fan not correspond to the duty cycle? I guess it has sth to do with the mosfet module but I am unable to pinpoint the issue. [link] [comments] |
Hi,
for a project I bought a 2.8inch DPI LCD and WM8960 Audio HAT both from Waveshare. Since the audio hat has GPIO extension I thought it would it be possible to stack one on top of the other. THe idea is to give "comact" audio and video output to a Raspberry Pi Zero, as much pankake as possible with no wires going around. For speaker I'm using 2w 28 mm speakers, no need for hd audio.
Well, I followed the intsructuon to edit the config.txt and add the overlays for the LCD and all went ok, once I understood that the drivers works only with Legacy 32 full image. Then I installed the audio drivers and the display stopped working. I uninstalled the audio drivers and checked the config.txt file were clean and the display worked again.
Is there a way to make this happen? Can you suggest another compact way of bringing audio out for the rpi? Maybe by using a usb board, taking data and power from the testing pads?
Hi everyone,
I’m working on my first Raspberry Pi project and could use some guidance. I’m building a theremin-like digital instrument using two SHARP GP2Y0A51SK0F IR sensors. Each sensor is supposed to trigger one of five audio clips based on distance.
Here’s what I’ve done so far:
However, I’m encountering a few issues:
I’m wondering if:
Here’s my code for reference:
import RPi.GPIO as GPIO import time import spidev from subprocess import call import threading import statistics # Setup SPI spi = spidev.SpiDev() spi.open(0, 0) spi.max_speed_hz = 1350000 # MCP3008 channel configuration sensor1_channel = 0 sensor2_channel = 1 # Distance to audio mapping with updated intervals distance_ranges = [(14, 15), (11, 13), (8, 10), (5, 7), (2, 4)] audio_files_sensor1 = [f"/home/jss/audio_clips/s1_clip{i+1}.m4a" for i in range(len(distance_ranges))] audio_files_sensor2 = [f"/home/jss/audio_clips/s2_clip{i+1}.m4a" for i in range(len(distance_ranges))] # Smoothing parameters smoothing_window_size = 5 sensor1_data = [] sensor2_data = [] def read_adc(channel): adc = spi.xfer2([1, (8 + channel) << 4, 0]) data = ((adc[1] & 3) << 8) + adc[2] return data def get_distance(sensor_channel, sensor_data): adc_value = read_adc(sensor_channel) distance = (adc_value * 3.3 / 1024) * 30 # Smoothing the distance using a simple moving average sensor_data.append(distance) if len(sensor_data) > smoothing_window_size: sensor_data.pop(0) smoothed_distance = statistics.mean(sensor_data) print(f"Smoothed distance from sensor {sensor_channel}: {smoothed_distance}") # Debugging return smoothed_distance def play_audio(file): try: print(f"Playing audio file: {file}") # Debugging call(["mpv", file]) except Exception as e: print(f"Error playing audio file: {file}. Error: {e}") def handle_sensor(sensor_channel, audio_files, sensor_data): last_played_index = -1 while True: distance = get_distance(sensor_channel, sensor_data) for i, (low, high) in enumerate(distance_ranges): if low <= distance <= high: if i != last_played_index: play_audio(audio_files[i]) last_played_index = i break time.sleep(0.1) def main(): print("Script started...") # Debugging # Create and start threads for each sensor sensor1_thread = threading.Thread(target=handle_sensor, args=(sensor1_channel, audio_files_sensor1, sensor1_data)) sensor2_thread = threading.Thread(target=handle_sensor, args=(sensor2_channel, audio_files_sensor2, sensor2_data)) sensor1_thread.start() sensor2_thread.start() # Wait for both threads to finish (they won't in this case) sensor1_thread.join() sensor2_thread.join() if __name__ == "__main__": main()import RPi.GPIO as GPIO import time import spidev from subprocess import call import threading import statistics # Setup SPI spi = spidev.SpiDev() spi.open(0, 0) spi.max_speed_hz = 1350000 # MCP3008 channel configuration sensor1_channel = 0 sensor2_channel = 1 # Distance to audio mapping with updated intervals distance_ranges = [(14, 15), (11, 13), (8, 10), (5, 7), (2, 4)] audio_files_sensor1 = [f"/home/jss/audio_clips/s1_clip{i+1}.m4a" for i in range(len(distance_ranges))] audio_files_sensor2 = [f"/home/jss/audio_clips/s2_clip{i+1}.m4a" for i in range(len(distance_ranges))] # Smoothing parameters smoothing_window_size = 5 sensor1_data = [] sensor2_data = [] def read_adc(channel): adc = spi.xfer2([1, (8 + channel) << 4, 0]) data = ((adc[1] & 3) << 8) + adc[2] return data def get_distance(sensor_channel, sensor_data): adc_value = read_adc(sensor_channel) distance = (adc_value * 3.3 / 1024) * 30 # Smoothing the distance using a simple moving average sensor_data.append(distance) if len(sensor_data) > smoothing_window_size: sensor_data.pop(0) smoothed_distance = statistics.mean(sensor_data) print(f"Smoothed distance from sensor {sensor_channel}: {smoothed_distance}") # Debugging return smoothed_distance def play_audio(file): try: print(f"Playing audio file: {file}") # Debugging call(["mpv", file]) except Exception as e: print(f"Error playing audio file: {file}. Error: {e}") def handle_sensor(sensor_channel, audio_files, sensor_data): last_played_index = -1 while True: distance = get_distance(sensor_channel, sensor_data) for i, (low, high) in enumerate(distance_ranges): if low <= distance <= high: if i != last_played_index: play_audio(audio_files[i]) last_played_index = i break time.sleep(0.1) def main(): print("Script started...") # Debugging # Create and start threads for each sensor sensor1_thread = threading.Thread(target=handle_sensor, args=(sensor1_channel, audio_files_sensor1, sensor1_data)) sensor2_thread = threading.Thread(target=handle_sensor, args=(sensor2_channel, audio_files_sensor2, sensor2_data)) sensor1_thread.start() sensor2_thread.start() # Wait for both threads to finish (they won't in this case) sensor1_thread.join() sensor2_thread.join() if __name__ == "__main__": main()
So i got sick of the spotify shuffle bcoz it was not playing the old songs in my playlist. So i made python telegram bot to shuffle the playlist and also it can update a playlist with the songs from shazam and liked songs. It basically collects the uri id of songs from liked,main playlist and shazam and builds a database. From that can easily add or rearrange songs in the playlist. Now I'm really up for saving money for a decent pi 4/5 in future😙. https://github.com/jidukrishna/spotify_updater [link] [comments] |
Ive seen the clock work u console around and wanted something a bit more utilitarian, as well as being upgradeable. It doesn't look nearly as nice but it serves my purpose and hopefully inspires someone else to build something even better [link] [comments] |
Finally been cleaning up the wires and doing some fine tuning on smoothing out the arms. Unfortunately I’m pretty sure he pulled out one of the grounds (my fault ) at the end of this dance. It started doing that pulsing thing it does when a ground is lose. So another takedown and redo is in order. 🤦♂️😂. Still pretty happy with it tho. [link] [comments] |
I am new to the Pi community and my head is spinning from learning all about GPIO pins, voltages, and communication protocols. Though it has been fun learning all these new concepts. I am struggling to properly connect a bidirectional data wire from an external machine [coin hopper] to my Raspberry Pi 5. When I use my Pi to send a request to the hopper, I get no response. I'm not sure if I am setting up this data wire correctly, so I would love insights from the community. High-level Project Details and Objective
Details I am trying to connect a Coin Hopper [Money Controls SCH 2 model] to my Pi 5. The SCH2 uses a 10-pin Moxel connection scheme and uses a bi-directional serial data line. SCH2 Online Manual/Documentation SCH2 uses the serial interface ccTalk & UART protocol**. ccTalk** is a very old protocol which makes sense as the coin hopper was produced in 2005. From ccTalk Wikipedia page: https://en.wikipedia.org/wiki/CcTalk The coin hopper is powered by a 24v power supply. Below is what the power supply looks like Power Supply from Amazon: https://www.amazon.com/dp/B07VL8W6MQ I am using a female terminal connector adapter to connect the 24v wire and ground wire from the coin hopper directly to the power supply. [Pins 4 & 6 on the hopper] I read that since the coin hopper uses 24v, it could damage the Pi 5 as the Pi operates at 3.3v logic level. Even though the only connection from the coin hopper to the Pi is with the bi-directional data line. As such, I am using a 3.3V/5V to 3.6V/24V 4 Channel Voltage Converter Optocoupler board. The board is NOT bi-directional. Voltage Converter from Amazon: https://www.amazon.com/dp/B07WFGTNQC To better communicate with the Pi's GPIO, I am using this GPIO expansion board GPIO Extenstion board from Amazon: https://www.amazon.com/dp/B08GKQMC72 This GPIO expansion board has a TXD and RXD port. My current understanding
Outstanding Questions
This has been a confusing journey but I'm excited to get the coin hopper up and running. The idea is to automate my coin sorter so that I don't have to place a coin manually each time. The Pi will communicate with the hopper to queue up the next coin after a coin has gone through the sorter. Edit: Clarification on what I have already done and tested I have already attached the GPIO extension board and voltage convertor to the Pi On the voltage convertor there, on the left side in the picture, are ports indicating Input & Ground. On the right side is Voltage Output and Ground. I connected a 22-gauge wire from IN1 [Input 1] to the GPIO extension board [TXD]. I also connected the wire from the input ground port to the ground port on the GPIO extension board [next to the TXD port. For the connection with the coin hopper, I connected the data cable wire from the hopper to V1 and a ground wire from the hopper in G. I am trying to send a command from the Pi through to the GPIO extension board. That data then goes through the extension board to the data cable wire to the coin hopper. However, the coin hopper does not send a response back confirming communication. Below is what I have done to troubleshoot:
[link] [comments] |
Hello all! I'm new to the Raspberry Pi scene; however, I have recently found my interest piqued by the tinkering possibilities of the Raspberry Pi. I am currently in the process of creating a NAS server that will be primarily used to maintain a photo library to offload from my phones. I am looking for suggestions, feedback, and any remarks on my build. The build will be as follows: - Raspberry Pi 5 - Argon Neo case with NVME support - 64GB Micro SD to download Pi OS Lite and Open Media Vault - 1 TB Crucial NVME
Additionally, I am also planning on buying a Black Shark phone cooler that I will stick above the Argon Neo's aluminum case with the theory that it will cool the metal down, which will cool the air within the case down, and therefore the fan's in the case will be circulating cold air to the Raspberry Pi.
I understand some of you might be asking me why I am not running RAID and multiple bays. Well, I don't want to increase the budget of this build anymore. It was supposed to be USD 250, and I'm already at USD 260.
Hi, Recently I bought a Raspberry Pi 5 so that I can use it in a project of mine, an autonomous car.
Unfortunately I'm not very experienced with electronics and I need help because I see that everybody online chooses different parts.
I want the car to be powered by a single LiPo battery with 11.1V and 2200mAh (with the XT60 plug). I want it to power the Raspberry Pi 5, a small 130 motor (3V) and a servomotor.
My question is, how do I power all of them from the same battery? I've searched and found that I can use a motor driver, I've seen more complex builds that use some additional parts. I'm just really unsure on how to connect all these so that they are powered by the Raspberry Pi only. I doubt the motor driver can power all 3 of them so I'm searching for either something else or something additional.
If anyone has some recommendations, articles that I can read, videos or anything to point me in the right direction, please send 'em my way.
Heyo everyone,
So this is quite frustrating..
I got myself a raspberry pi 5... A rasperry pi 5 pcie M.2 hat ( The pimoroni Duo )
The idea is to use proxmox on the PI. Just for fun.
My current problem is that the ubuntu server can't see nor mount the nvme.. And whenever I search for help I get loooots of sites helping me on how to boot from an nvme.. I do not want to boot from my nvmes.. I want the os to run from the SD card and then mount the nvmes into the os...
Does anyone here have any ideas how to accomplish that?
Thanks for reading.
P.S. I'm slightly triggered that there's no one just mounting an nvme.
I am using a very basic test code provided at the end of this video linked below (I'm basically trying to rebuild her robot with a few extra mods but I haven't even added the mods yet)
https://www.youtube.com/watch?v=Bp9r9TGpWOk
I keep getting this error:
It marks the error at the first line of my forward function.
I have tried googling the solution and this is the only link that comes close to solving my issue but not quite as I'm not using GPIO.cleanup(), so I have no idea what else my issue can be. I've reviewed the code a dozen times, and it should be working, as I'm essentially doing this but with some extra steps:
import time
import RPi.GPIO as GPIO
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BOARD)
GPIO.setup[29, GPIO.OUT]
GPIO.setup[31, GPIO.OUT]
#30 GND
GPIO.setup[32, GPIO.OUT]
GPIO.setup[33, GPIO.OUT]
GPIO.output(29, True)
time.sleep(3)
GPIO.output(29, False)
GPIO.output(31, True)
time.sleep(3)
GPIO.output(31, False)
GPIO.output(32, True)
time.sleep(3)
GPIO.output(32, False)
GPIO.output(33, True)
time.sleep(3)
GPIO.output(33, False)
time.sleep(3)
exit()
And this code worked perfectly fine. I don't know why it shit the bed as soon as I brought classes into the equation. The pins all work, and they all respond to the pi calling them out exactly like this. I think it must be something in my syntax that's making it freak out and throw this error. I removed all the extraneous stuff I added in for my future mods (except for some of the imports), and nothing fixed it. I'm putting my code below.
#GPIO Settings
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BOARD)
#labeling pins
GPIO.setup[29, GPIO.OUT]
GPIO.setup[31, GPIO.OUT]
#30 GND
GPIO.setup[32, GPIO.OUT]
GPIO.setup[33, GPIO.OUT]
class Robot:
def __init__(self, name, rwheel, lwheel):
self.name
= name
self.rwheel = tuple(rwheel)
self.lwheel = tuple(lwheel)
self.rwheel_f = int(rwheel[0])
self.rwheel_b = int(rwheel[1])
self.lwheel_f = int(lwheel[0])
self.lwheel_b = int(lwheel[1])
def forward(self, sec):
GPIO.output(self.rwheel_f, True)
GPIO.output(self.lwheel_f, True)
#stop
time.sleep(sec)
GPIO.output(self.rwheel_f, False)
GPIO.output(self.lwheel_f, False)
def backward(self, sec):
GPIO.output(self.rwheel_b, True)
GPIO.output(self.lwheel_b, True)
#stop
time.sleep(sec)
GPIO.output(self.rwheel_b, False)
GPIO.output(self.lwheel_b, False)
def lturn(self, sec):
GPIO.output(self.rwheel_f, True)
#stop
time.sleep(sec)
GPIO.output(self.rwheel_f, False)
def rturn(self, sec):
GPIO.output(self.lwheel_f, True)
#stop
time.sleep(sec)
GPIO.output(self.lwheel_f, False)
#establishing ob
smelly = Robot("smelly", (29, 31), (32,33))
#test run
smelly.forward(3)
smelly.backward(3)
smelly.lturn(3)
smelly.rturn(3)
Again, I'm following her code exactly, so I'm not sure where I could have gone wrong on this. Again, I get the error attached to the first line of my forward function.
Sorry for back to back updates. Pulled an all nighter on getting the arms calibrated 🙏🏽 saved the moment of truth for this morning . Loving the new arms sofar. [link] [comments] |
Hi everyone!
I am trying to setup a wireless mesh network staring from this project. Everything works fine until I am in cabled client mode: the moment I try to build a wireless bridge it does not stay up for more than few seconds.
I did some research and tried different configurations on hostapd but I am figuring out why it is not working.
In case you have any suggestion it would be really really appreciated!
I am using Raspberry Pi 5 as devices, equipped with Edimax EW-7822ULC usb adapters.
Hello! I have been working on trying to figure out the arms all week …have been running into problems but tackling them best I can. Currently waiting on a servo to come in from Amazon to finish the work. But I figure I’d show ya BB1s “Anti Deer Raccoon BBBB turret” 🙏🏽 (it is functional! video coming soon ) The arms also mean having to change up how the power is handled so will probably have to add another voltage regulator and some other stuff 🤔. WIP 🙏🏽 [link] [comments] |
NFC (Lunch) Music Box ! Hi sub, Here is the outcome of my long project to create a nice NFC Music Box for kids. I started this project back in November, thinking I could finished it by Christmas. Big failure, time runs fast. PicturesInside, upper part (the battery is under the black battery control card) Front view with the volume and control switchs From bottom view with a screw preventing opening TL;DR
In detailsComponents
Main software
Logic
Security & Safety
Problem I had
What can be better
What would I do differently if I can?
post version 1.2 (2024/07/24 19:00) [link] [comments] |
Hey guys!
I've been trying to get UnetStack to run on a Raspberry Pi 3 A+ for the past couple of days. I followed the instructions shown here https://blog.unetstack.net/Project-Sabine-Low-cost-DIY-underwater-modem-using-COTS-components-and-Unet-audio (this is what I'm building) as well as tried other installation methods shown on their website. Whenever I get to the step to try to run UnetAudio using "bin/unet -c audio" or through one of the groovy files, I get the same error:
bin/unet: line 31: /usr/lib/jvm/java-8-openjdk-armhf/bin/java: cannot execute: required file not found
I have confirmed though this exact file path that the java file is located there, and am a bit lost as to what to do next. Any suggestions or prior experiences would be greatly appreciated, thanks!
I made iot project for controling a/c using a website and mqtt https://github.com/Imn0/rpi-pico-ac-control [link] [comments] |