raspberry pi

Hello, I'm a complete newbie in circuits and have tried to figure it out with chatgpt (yeah, feel free to roast me!). I'm trying to control a DIA42B20W (BLDC motor with in-built driver) with a Raspberry Pi. Please see the diagram on how I plan to wire it all up. I have added a N-MOSFET into my...

Hi everyone, I’m working on a project where I want to use RFID tags to trigger a digital business card on a phone. The idea is to scan an RFID/NFC tag and open a webpage or contact info automatically — like an NFC business card. I’m using the PN532 NFC module and a Raspberry Pi 5. I’ve tried...

Hi all, I’m working on a small FM transmitter project using a Raspberry Pi 3 and the fm_transmitter library by markondej (GitHub link: https://github.com/markondej/fm_transmitter). It uses a GPIO pin to output a square wave FM signal directly. The output is around 3.3V and can only safely...

I am a beginner about electronic circuits and english I am designing a circuit to use two three-terminal regulators L78S05CV (5V2A) to cover the power supply of Raspberry Pi Zero 2 W, because 5V 2.5A is recommended. However, many sources say that the maximum measured current consumption of the...

Help Needed: SPI Clock Signal Stuck High on Custom PCB with 48 MLX90393 Sensors (Hall Effect Device for Palm Rehabilitation) Hello everyone, I am currently working on my master's thesis, where I am developing a hall effect-based device for palm rehabilitation. The device is designed to...

Hello, I'm new to electronics and programming. I have a lifetime of experience with computers but in completely different directions. Because I am retired due to illness and I have a lot of free time, I decided not to sit around for nothing. So, having a Rasperry Py 4 model B and a Pi Pico at...

Hello everyone. I am working on a project where I use raspberry pi and a speaker. I'm using an amplifier module for the speaker which operates on 12v while raspberry pi needs 5v hence I use CA-1235 DC-DC converter which converts 12v to 5v for the raspberry pi. Now, I can hear buzzing noise in...

I have just purchased a Taiss rotary encoder (E38S6-600-24G) to use on a Pi 4b project running the latest Bookworm OS. It's a 4 wire system with red and black for the power and white for the A phase and green for the B phase. I've attempted to connect it up by using what I could google on...

Hi I am currently working on a project that requires me to convert user given speech input to text in real-time using an arduino(either locally or send the voice wirelessly to my laptop for recognition in my laptop). Is there a way I could implement this only by using an arduino uno and a...

Hello, I have recently bought a Raspberry Pi Codec Zero to do audio processing. I have gone through all the documentation and set up all the necessary settings. When I run my codes, I get no input. So my questions are; How can you get access directly to the ADC? Maybe the ADC may have a way to...

Hello Looking for a suitable audio soundcard that includes ADC and DAC capabilities for Raspberry Pi 4? So far during my search, I have come across; The HiFiBerry ADC+ DAC: Microphone compatibility(Only works with Dynamic Mic), inability to use headphones for listening, lack of included...

Hi I have a HifiBerry DAC+ADC attached to Raspberry Pi4 to read audio from a mic. On the console, I see the HifiBerry card is listed. hw:CARD= sndrpihifiberry, DEV= 0 snd_rpi_hifiberry_dacplusadc, HifiBerry DAC+ADC HiFi multicodec-0 I use ALSA API to read the input My code to read the input...

Hi, I have stacked.. Im trying to connect my Bluetooth module ZS-040 (HC-06) to raspberry pi 3 model b+ for receiving data from mobile phone. I have tried everything but can’t connect. I need python code. I m using serial Bluetooth terminal app on my android phone. I have this code. My code runs...

Hey all, I'm currently building an escape room & have decent good electronics knowledge, however, I'm on a project that has stumped me: We have an arcade machine built with a custom mini game running on a pc, the controller joystick and buttons operate via a usb decoder & are fully...

I am trying to get 2 stepper motors to run at 2 seperate (and changing) speeds on a rpi pico. the pico will also be doing other things (like reading inputs) along side this. the only way I know to control the speed of a motor is using the time.sleep (see code below function between pulses...

Hi, I have an embedded device and a laptop without an ethernet port. I want to assign a static MAC address to the USB interface and then assign an IP address to the device. For example, I have connected the raspberry pi to the laptop through a USB cable and I want to assign a MAC address to...

Hi, I am working on an audio processing project using Rsp4. It involves using two mics both connected via USB ports. The program works however there is far too much noise that you can barely hear. It mic2 it like a machine is ON. I am new to audio processing so I assume I need to do some...

Hello All, I am using Raspberry Pi 4 which comes with 4 USB ports. For my project, I have two mics and both will be connected to Rsp via a USB port. I need to be able to choose which Mic needs to be ON. So basically I need to be able to switch/choose which USB port I want the sound to come in...

Hi All, I am working on a project to detect sound from a mic and process that sound in Raspberry Pi4B. The Mic(Link below) has a digital putout. https://www.sunrom.com/p/sound-sensor-module-mic The Raspberry Pi4B doesn't have an ADC so, in theory, the Mic module should be ideal. The question...

Looking to make a Pi Scope as described at https://www.instructables.com/PiScope-Raspberry-Pi-based-Oscilloscope/ I am happy with the building of it but currently do not know enough about electronics to not use the list of components on the site. I wondered when it comes to components such as...