853 Results for "raspberry pi"

(edited) transcript of Raspberry Pi Hack Chat
Log from Raspberry Pi HackChat
Roger Thornton says:27 minutes agoHello everyone, it's great to be here and I am looking forward to talking to you all.altometer says:26 minutes ago: USB C power socket. I mean, yes, you can get them from Amazon, but I wanted to see what was possible.Roger...

HopeRF RFM98 Lora Raspberry Pi Python code
Log from AIS repeater
I have ported the receiver code to Python, based on this library for the 868 inair9 LoRa unit, modified for the HopeRF RFM98W on 434MHz on the UPUtronics Pi shield on SPI CE1https://github.com/mayeranalytics/pySX127xI will post the code later. Basically...

How to support the Raspberry Pi 2
Log from C GPIO library for Raspberry Pi
The RPi2 swapped the venerable BCM2835 for a BCM2836. The Peripheral block is pretty much the same (or so we hope !) but the BCM2835 changed its base address. So that's the only thing that seems to matter for now.http://elinux.org/RPi_GPIO_Code_Samples#Direct_register_access:Note:...

SPI between the raspberry PI & STM32
Log from The ultimate vlogging mic
Transferring audio to the PI over SPI went relatively smoothly. 16Mhz over single ended SPI wires of 5cm worked. On the PI, SPI only works in master mode. SPI initialization is the same as it was 5 years ago & looks like: #define CHANNEL...

Voice Control for Petoi Bittle with Raspberry Pi
Log from OpenCat - Open Source Quadruped Robotic Framework
Learn how to use a voice control module for Raspberry Pi with Petoi Bittle — a palm-sized, open-source, programmable robot dog for STEM and fun. - by Friende Peng, intern engineer at Petoi in 2021 summer. Things used in this project Hardware components...

How to connect to NMEA-0183
Log from RS485 / RS422 shield for Raspberry Pi
New instructable how to use NMEA-0183 with Raspberry Pi https://www.instructables.com/id/How-to-Use-NMEA-0183-With-Raspberry-Pi

Interfacing Quadrature Decoder to Raspberry Pi
Log from Rethinking the Luminiferous Aether Detector
Last weekend I downloaded the software needed to design a printed circuit board, and have it appear on a delivery truck at my front door 5-days later. Viola. That was cool. and since this was my first purchase, they threw in all the...

Using three I2C buses on Raspberry Pi 4
Log from 7,200-segment, 1,152-digit 7-seg display
(First light) I really like the IS31FL3733 i2c matrix controllers I'm using in this project, but they do have one limit that I ran into fairly quickly. You can only have 16 of them on one i2c bus. Due to the large numbers of displays in this project,...

Raspberry Pi Zero: Controller Loop Stability
Log from LabRATory Telepresence Robot
Raspberry Pi Zero: Controller Timing Stability¶Servo motor control is usually implemented with an embedded MCU as typically very fast, consistant control loops are required for real life motion controls. Programming, capturing data, and PID tuning...

NFC reference
Log from Medcheck
This looks like it might be a useful reference to getting rfid/NFC working with the PIhttp://www.instructables.com/id/Attendance-system-using-Raspberry-Pi-and-NFC-Tag-r/step1/Materials-list/

Best results with raspberry pi 4
Log from Auto tracking camera
The best rule with efficientdet_lite0 has been hard coding the number of animals in frame & making sure that number is always visible so it doesn't get false positives. Tracking just the highest score would oscillate between 2 animals. Since...

Raspberry Pi ID EEPROM Read Working
Log from Not Quite Useless Raspberry Pi Replacement
The functions to read the ID EEPROM on the Raspberry Pi Hat are now working. The expected data is: const uint8 rpp_uio_16_eeprom[RPP_UIO16_EEPROM_LENGTH] = { 0x52, 0x2D, 0x50, 0x69, 0x01, 0x00, 0x02, 0x00, 0x6D, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,...

Raspberry Pi Hat ID EEPROM Details
Log from Not Quite Useless Raspberry Pi Replacement
The creation of Raspberry Pi Hat EEPROMs is described in the Foundation's documents. The HAT EEPROM allows the hat to describe the function of the GPIO pins. Most of our cards are not for a specific purpose but are I/O breakouts with power distribution....

Request for project ideas for "Raspberry Pi 3 Desktop a 7-yr-old Can Build & Use"
Log from Raspberry Pi 3 Desktop a 7-yr-old Can Build & Use
This project log is intended as a request for comments--project ideas--for my project "Raspberry Pi 3 Desktop a 7-yr-old Can Build & Use." See below for more details.The postulated audience for this project are parents who are STEM (Science, Technology,...

Raspberry Pi Pico Video and PS/2 Keyboard
Log from JJ65C02
I've pretty much completed the core library code for the VGA out and PS/2 Keyboard input handling on the Pi Pico, to be used as an A/V support chip on my JJ65C02 system and figured it was time for an update and even a video. The Pico outputs basic VGA...

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