Planet Arduino

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For those who own a pet with the freedom to move between the house and the yard, keeping tabs on where they are can be a challenge, especially if there’s a pet flap involved. Instructables user madmcu wanted to know where their cat was whilst away from the house on vacation, so they came up with an AI-driven solution that could log entrances and exits automatically.

Because a closing flap will induce vibrations, madmcu started the project by adding a three-axis accelerometer just above the pet door’s hinge. The IMU was then connected to an Arduino UNO R4 WiFi in order to collect many data samples of a pet going through the flap. Every loop of the data collection program caused the three axes to be printed out over USB serial and sent to STMicroelectronics’s NanoEdge AI Studio application. It was in this app that madmcu set up and trained a classification model on the dataset using the two labels of either “inside” or “outside.”

Once exported, the model was deployed back onto the UNO R4 WiFi along with an updated sketch that continuously classifies new accelerometer readings and prints the result if there is any. At the end of their project write-up, madmcu provides a couple ideas for adding alerts and even a dashboard thanks to the UNO R4’s built-in Wi-Fi capabilities.

The post AI-powered pet flap tracks where your furry friend is appeared first on Arduino Blog.

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Seon Rozenblum, better known as Unexpected Maker, has launched NANOS3  a development board that claims to be the world’s smallest, fully-featured ESP32-S3 module! This new module packs all the peripherals, and wireless connectivity features of an ESP32-S3 while being even smaller than the TinyPICO Nano. The module features two variants one with an onboard 3D antenna and the other with an u.FL connector. Previously we have written about TinyS3, FeatherS3, and ProS3 boards from Unexpected Maker we have also covered many unique ESP32-S3 boards like the ESP32-S3 PowerFeather Board with solar input, the Waveshare ESP32-S3-Relay-6CH, the ESP32-S3 4G dev boards and more feel free to check those out if you are interested in ESP32 boards with advanced features. Unexpected Maker NANOS3 Specifications ESP32-S3-WROOM-1-N8R2 MCU – ESP32-S3 dual-core Tensilica LX7 up to 240 MHz with 512KB SRAM, 16 KB RTC SRAM Memory – 2MB QSPI PSRAM Storage – 8MB QSPI flash Wireless – [...]

The post Unexpected Maker NANOS3 might be the world’s tiniest ESP32-S3 module, yet fully-featured appeared first on CNX Software - Embedded Systems News.

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Science Buddies had a problem: their tiny little pug loves eating their cat’s poop. Because the pug is smaller than the cat, they couldn’t simply put the litter box behind a tiny cat door. So they came up with a more sophisticated solution: a motorized door triggered by a magnetic collar.

Riley the pug’s responses to poop access prevention are awfully pugnacious, but she is also pretty skittish. Science Buddies surmised that a cardboard door would be enough to stop her. But that would also stop Trouble the cat, so the door needed to remain open for Trouble and only close when Riley tried to enter the area with the litter box. After experimenting with a few different solutions, Science Buddies landed on servo-actuated cardboard doors that close in the presence of a strong magnetic field.

That magnetic field comes from a permanent magnet dangling from Riley’s collar. An Arduino UNO Rev3 board detects that magnet using several Reed switches arranged along the bottom edge of the door frame. When the magnet causes the Reed switches to close, the Arduino knows that Riley is trying to get to the cat poop. In then closes two cardboard doors using small hobby servo motors.

It took some tinkering to position the Reed switches in a way that they’d trigger consistently, but Science Buddies found a reliable setup in the end. Now whenever Riley attempts to get to the litter box, the cardboard doors slam in her adorable pug snoot and she abandons her quest.

The post This DIY pet door helps keep a dog out of the cat’s litter box appeared first on Arduino Blog.

The Waveshare 1.69-inch IPS touch LCD is a 1.69-inch rounded display with 240×280 resolution and a 262K color range. The display driver (ST7789V2) and touch controller (CST816T) are integrated on-board and rely on SPI and I2C interfaces that make it compatible with popular platforms such as Raspberry Pi, Arduino, ESP32, STM32, and more. Previously we have covered many similar display modules like the MaTouch ESP32-S3, T-RGB ESP32-S3, and ESP32-S3 Round SPI TFT. Feel free to check these out if you are looking for a specific rounded display product. Waveshare 1.69-inch IPS touch LCD specifications Display 1.69-inch round LCD with 240×280 resolution and IPS panel. 262K color depth Display Driver –  ST7789V2 SPI display driver Touch Control – CST816T I2C capacitive touch controller for responsive input. Onboard Logic Level Converter  – Onboard voltage translator for 3.3V/5V power, works with Raspberry Pi, ESP32-S3, Raspberry Pi Pico, Arduino, STM32, and more. Dimensions – 41.13 x 33.13 [...]

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