YDLIDAR X4PRO is a 360 degrees two-dimensional rangefinder. Based on the principle of triangulation, it is equipped with related optics, electricity, and algorithm design to achieve high-frequency and high-accuracy distance measurement. The mechanical structure rotates 360 degrees to continuously output the angle information as well as the point cloud data of the scanning environment while ranging. Features 360 degrees omnidirectional scanning ranging distance measurement Small distance error, stable performance and high accuracy Wide ranging distance Strong resistance to ambient light interference Low power consumption, small size and long service life Laser power meets Class I laser safety standards Adjustable motor speed, scanning frequency is 6~12 Hz High-speed ranging, ranging frequency up to 5 kHz Applications Robot navigation and obstacle avoidance Robot ROS teaching and research Regional security Environmental scanning and 3D reconstruction Navigation and obstacle avoidance of robot vacuum cleaner/ROS Learning robot Specifications Range Frequency 5000 Hz Scan Frequency 6-12 Hz Range Distance 0.12-10 m Scan Angle 360° Angle Resolution 0.43-0.85° Dimensions 110.6 x 71.1 x 52.3 mm Downloads Datasheet User Manual Development Manual SDK Tool ROS

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This FeatherWing will make it easy to add data logging to any Feather Board you might have. You get both an I²C real-time clock (PCF8523) with 32 KHz crystal and battery backup, and a microSD socket that connects to the SPI port pins (+ extra pin for CS). Note: FeatherWing doesn't come with a microSD card. A CR1220 coin cell is required to use the RTC battery-backup capabilities. If you're not using the RTC part of the FeatherWing, a battery is not required. To talk to the microSD card socket Arduino's default SD library is recommended. Some light soldering is required to attach the headers onto the Wing. Pinouts Power pins On the bottom row, the 3.3 V (second from left) and GND (fourth from left) pin are used to power the SD card and RTC (to take a load off the coin cell battery when main power is available) RTC & I²C Pins In the top right, SDA (rightmost) and SCL (to the left of SDA) are used to talk to the RTC chip. SCL - I²C clock pin to connect to your microcontroller's I2C clock line. This pin has a 10 kΩ pull-up resistor to 3.3 V SDA - I²C data pin to connect to your microcontroller's I2C data line. This pin has a 10 kΩ pull-up resistor to 3.3 V There's also a breakout for INT which is the output pin from the RTC. It can be used as an interrupt output or it could also be used to generate a square wave. Note that this pin is an open drain - you must enable the internal pull-up on whatever digital pin it is connected to. SD & SPI Pins Starting from the left you've got SPI Clock (SCK) - output from feather to wing SPI Master Out Slave In (MOSI) - output from feather to wing SPI Master In Slave Out (MISO) - input from wing to feather These pins are in the same location on every Feather. They are used for communicating with the SD card. When the SD card is not inserted, these pins are completely free. MISO is tri-stated whenever the SD CS (chip select) pin is pulled high

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This carrier board combines a 2.4" TFT display, six addressable LEDs, onboard voltage regulator, a 6-pin IO connector, and microSD slot with the M.2 pin connector slot so that it can be used with compatible processor boards in our MicroMod ecosystem. We've also populated this carrier board with Atmel's ATtiny84 with 8kb of programmable flash. This little guy is preprogrammed to communicate with the processor over I²C to read button presses. Features M.2 MicroMod Connector 240 x 320 pixel, 2.4" TFT display 6 Addressable APA102 LEDs Magnetic Buzzer USB-C Connector 3.3 V 1 A Voltage Regulator Qwiic Connector Boot/Reset Buttons RTC Backup Battery & Charge Circuit microSD Phillips #0 M2.5 x 3 mm screw included

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This portable WiFi weather station is the perfect blend of functionality and style, offering real-time updates on temperature, humidity, and time – all at a single glance. Featuring a clear digital display, the station ensures that weather and time data are always easy to read and understand. Its minimalist design integrates seamlessly into any environment, adding a touch of modern sophistication without drawing unnecessary attention. Features Multi-Function Display: Shows weather, atmospheric pressure, min/max temperature, wind speed, city, country/region, date, day of the week, outdoor temperature & humidity – all at a glance. Custom GIF Animations: Upload your own GIFs for a personalized display experience. WiFi Connectivity: Automatically connects to the Internet to retrieve real-time weather and time data. Power Supply: USB-C Durable Plastic Casing Dimensions: 45 x 35 x 40 mm

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Specifications Material: Plastic + Steel Quantity: 10 Pieces Dimensions: 0.71 x 0.39 x 0.28" Weight: 0.5 oz/pc

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The Sparkfun Qwiic GPIO is an I²C device based around the TCA9534 I/O Expander IC from Texas Instruments. The board adds eight IO pins that you can read and write just like any other digital pin on your controller. The details of the I²C interface have been taken care of in an Arduino library so you can call functions similar to Arduino's pinMode and digitalWrite, allowing you to focus on your creation! The TCA9534's pins are broken out to easy-to-use latch terminals; never screw another wire into place! The terminals are relatively roomy themselves, so feel free to latch multiple wires into a ground or power terminal. With three customizable address jumpers, you can have up to eight Qwiic GPIO boards connected on a single bus allowing upwards of 64 additional GPIO pins! The default I²C is 0x27 and can be changed by adjusting the jumpers on the board's back. Features Eight Configurable GPIO Pins Available I²C Address: 0x27 (Default) Hardware address pins allow up to eight boards on a single bus Input Polarity Inversion Register Control each I/O pin individually or all at once Open-Drain Active-Low Interrupt Output 2x Qwiic Connectors Dimensions: 60.96 x 38.10 mm

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The LILYGO T-Display-S3 Long is a versatile development board powered by the ESP32-S3R8 dual-core LX7 microprocessor. It features a 3.4-inch capacitive touch TFT LCD with a resolution of 180x640 pixels, providing a responsive interface for various applications. This board is ideal for developers seeking a compact yet powerful solution for projects requiring touch input and wireless communication. Its compatibility with popular programming environments ensures a smooth development experience. Specifications MCU ESP32-S3R8 Dual-core LX7 microprocessor Wireless Connectivity Wi-Fi 802.11, BLE 5 + BT Mesh Programming Platform Arduino IDE, VS Code Flash 16 MB PSRAM 8 MB Bat voltage detection IO02 Onboard functions Boot + Reset Button, Battery Switch Display 3.4" Capacitive Touch TFT LCD Color depth 565, 666 Resolution 180 x 640 (RGB) Working power supply 3.3 V Interface QSPI Included 1x T-Display S3 Long 1x Power cable 2x STEMMA QT/Qwiic interface cable (P352) 1x Female pin (double row) Downloads GitHub

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The Power Delivery Board uses a standalone controller to negotiate with the power adapters and switch to a higher voltage other than just 5V. This uses the same power adapter for different projects rather than relying on multiple power adapters to provide different output; it can deliver the board as part of SparkFun’s Qwiic connect system, so you won’t have to do any soldering to figure out how things are oriented. The SparkFun Power Delivery Board takes advantage of the power delivery standard using a standalone controller from STMicroelectronics, the STUSB4500. The STUSB4500 is a USB power delivery controller that addresses sink devices. It implements a proprietary algorithm to negotiate a power delivery contract with a source (i.e. a power delivery wall wart or power adapter) without the need for an external microcontroller. However, you will need a microcontroller to configure the board. PDO profiles are configured in an integrated non-volatile memory. The controller does all the heavy lifting of power negotiation and provides an easy way to configure over I²C. To configure the board, you will need an I²C bus. The Qwiic system makes it easy to connect the Power Delivery board to a microcontroller. Depending on your application, you can also connect to the I²C bus via the plated through SDA and SCL holes. Features Input and output voltage range of 5-20V Output current up to 5A Three configurable power delivery profiles Auto-run Type-C™ and USB PD sink controller Certified USB Type-C™ rev 1.2 and USB PD rev 2.0 (TID #1000133) Integrated VBUS voltage monitoring Integrated VBUS switch gate drivers (PMOS)

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LuckFox Pico Mini is a compact Linux micro development board based on the Rockchip RV1103 chip, providing a simple and efficient development platform for developers. It supports a variety of interfaces, including MIPI CSI, GPIO, UART, SPI, I²C, USB, etc., which is convenient for quick development and debugging. Features Single-core ARM Cortex-A7 32-bit core with integrated NEON and FPU Built-in Rockchip self-developed 4th generation NPU, features high computing precision and supports int, int8, and int16 hybrid quantization. The computing power of int8 is 0.5 TOPS, and up to 1.0 TOPS with int4 Built-in self-developed third-generation ISP3.2, supports 4-Megapixel, with multiple image enhancement and correction algorithms such as HDR, WDR, multi-level noise reduction, etc. Features powerful encoding performance, supports intelligent encoding mode and adaptive stream saving according to the scene, saves more than 50% bit rate of the conventional CBR mode so that the images from camera are high-definition with smaller size, double the storage space Built-in RISC-V MCU supports low power consumption and fast start-up, supports 250 ms fast picture capture and loading Al model library at the same time to realize face recognition "in one second" Built-in 16-bit DRAM DDR2, which is capable of sustaining demanding memory bandwidths Integrated with built-in POR, audio codec and MAC PHY Specifications Processor ARM Cortex-A7, single-core 32-bit CPU, 1.2 GHz, with NEON and FPU NPU Rockchip 4th-gen NPU, supports int4, int8, int16; up to 1.0 TOPS (int4) ISP Third-gen ISP3.2, up to 4 MP input at 30fps, HDR, WDR, noise reduction RAM 64 MB DDR2 Storage 128 MB SPI NAND Flash USB USB 2.0 Host/Device via Type-C Camera Interface MIPI CSI 2-lane GPIO Pins 17 GPIO pins Power Consumption Low power, RISC-V MCU for fast startup Dimensions 28 x 21 mm Downloads Wiki

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After power on, YDLIDAR G4 start rotating and scanning the environment around it. The scanning distance is 16 m and the device offers a scanning rate of 9,000 times per second. It makes detailed examinations of its environment and can locate the smallest of objects surrounding it. Featuring a high-precision brushless motor and encoder disc mounted on bearings, it rotates smoothly and has a service life of up to 500,000 hours of operation. The G4 is an inexpensive solution for projects that require obstacle detection, obstacle avoidance, and/or simultaneous localization and mapping (SLAM). All YDLIDAR products are ROS ready. Features 360 degree 2D range scanning Stable performance, high precision 16 m range Strong resistance to environmental light interference Brushless motor drive, stable performance FDA Laser safety standard Class I 360 degree omnidirectional scanning, 5-12 Hz adaptive scanning frequency OptoMagnetic technology Wireless data communication Scanning rate of 9000 Hz Downloads Datasheet User Manual Development Manual SDK Tool ROS

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The SDS011 sensor determines the dust particle concentration in the air using the scattered light method. The USB-UART adapter also allows the sensor to be read out directly via USB port on a computer. Specifications Interface UART (3.3 V level) Resolution 0.3 µg/m3 Response time < 10s Other feature Integrated fan Current in idle < 4 mA Supply current 70 mA Operating voltage 5 V Dimensions 70 x 70 x 24 mm Weight 70 g Included 1x SDS011 dust sensor 1x Connection cable 1x USB-UART adapter Downloads Datasheet Manual

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The Motorino board is an extension-board to control and use up to 16 PWM-controlled 5V-Servo-motors. The included clock generator ensures a very precise PWM signal and a very precise positioning. The board has 2 inputs for voltage from 4.8 V to 6 V which can be used for up to 11 A. With this input, a perfect power supply is always guaranteed and even bigger projects are no problem. The supply runs directly over the Motorino which provides a connection for voltage, ground and control. With the build in capacitor, the voltage is buffered which prevents a sudden voltage-drop at a high load. But there is also the possibility to connect another capacitor. The control and the programing can be done, as usual, with the Arduino. Manuals and code examples allows a quick introduction for beginners. Special features 16 Channels, own clock generator Input 1 Coaxial power connector 5.5 / 2.1 mm, 4.8-6 V / 5 A max Input 2 Screw-terminal, 4.8-6 V / 6 A max Communication 16 x PWM Compatible with Arduino Uno, Mega and may more microcontroller with Arduino compatible pinout Dimensions 69 x 24 x 56 mm Scope of supply Board, Manual, Retail package

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Specifications Size 23.2 x 12.5 x 22 mm Weight 9 g Gear type Plastic Gear (Nylon & POM) Limit angle 120 Bearing No Ball bearings Horn gear spline 20T (4.8 mm) Horn type Plastic, POM Case Nylon & Fiberglass Connector wire 200 mm Motor Metal brush motor Spalsh water resistance No Included 1x FeeTech FS90 Servo 1x Straight single ended servo horn 1x Straight double ended servo horn 1x Winged straight double ended servo horn 1x Four-pointed star servo horn 1x Round servo horn 1x Servo horn screw 2x FS90 servo mounting screws Downloads User Guide

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This kit contains everything needed to start learning about connecting electronics to the micro:bit in an accessible and easy manner. Everything is connected using the supplied alligator clips, so no soldering required. Included MonkMakes Speaker for micro:bit MonkMakes Switch for micro:bit MonkMakes Sensor Board for micro:bit Set of alligator clip leads (10 leads) Small motor with fan Single AA battery box (battery not included) Light bulb and holder Booklet (A5) Downloads Instructions Datasheet Lesson Plans

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A low-power, open source, 2.7-inch IoT display powered by an ESP32-S2 module and featuring SHARP's Memory-in-Pixel (MiP) screen technology The Newt is a battery-powered, always-on, wall-mountable display that can go online to retrieve weather, calendars, sports scores, to-do lists, quotes…really anything on the Internet! It is powered by an ESP32-S2 microcontroller that you can program with Arduino, CircuitPython, MicroPython, or ESP-IDF. It's perfect for makers: Sharp’s Memory-in-Pixel (MiP) technology avoids the slow refresh times associated with E-Ink displays A real-time clock (RTC) was added to support timers and alarms The Newt was designed with battery operation in mind; every component on the board was chosen for its ability to operate at low power. Newt was designed to operate 'untethered,' which means it can be mounted in places where a power cord would be inconvenient, for example a wall, refrigerator, mirror, or dry-erase board. With the optional stand, desks, shelves, and nightstands are also good options. Newt is open source, and all design files and libraries are available for review, use, and modification. However, doing that is not required. Each Newt is delivered with working code with the following features: Current weather details Hourly and daily weather forecast Alarm Timer Inspirational quotes Air-quality forecast Habit calendar Pomodoro timer Oblique Strategy cards Only following the Wi-Fi provisioning instructions is needed to get started. No app downloads are required. Specifications Display Sharp Memory LCD Screen Size 2.7 inch Resolution 240 x 400 Deep Sleep Current 30 uA Refresh Rate < 0.001 s Periodic Screen Refresh Required No Input Buttons 10 capacitive pads, 1 push button RTC included Yes Speaker included Yes Power Input USB Type-C Battery included No Programming Languages Arduino, CircuitPython, ESP IDF, MicroPython Dimensions 91 x 61 x 9 mm Microcontroller Espressif ESP32-S2-WROVER Module with 4 MB flash and 2 MB PSRAM Wi-Fi capable Supports Arduino, MicroPython, CircuitPython, and ESP-IDF Deep sleep current as low as 25 μA Display 2.7-inch, 240 x 400 pixel MiP LCD Capable of delivering high-contrast, high-resolution, low-latency content with ultra-low power consumption Reflective mode leverages ambient light to eliminate the need for a backlight Time Keeping, Timers, and Alarms Micro Crystal RV-3028-C7 RTC Optimized for extreme low-power consumption (45 μA) Able to simultaneously manage a periodic timer, a countdown timer, and an alarm Hardware interrupt for timers and alarms 43 bytes of non-volatile user memory, 2 bytes of user RAM Separate UNIX time counter Buzzer Speaker/buzzer with mini class-D amplifier on DAC output A0 can play tones or lo-fi audio clips User Input Power switch Two programmable tactile buttons for Reset and Boot 10 capacitive touchpads Power Newt is designed to operate for one to two months between charges using a 500 mAH LiPo battery. The exact run time varies. (Heavy Wi-Fi use, in particular, will reduce battery charge more quickly.) USB Type-C connector for programming, power, and charging Low-quiescence voltage regulator (TOREX XC6220) that can output 1 A of current and operate as low as 8 μA. JST connector for a Lithium-Ion battery Battery-charging circuity (MCP73831) Low-battery indicator (1 μA quiescence current) Software Newt hardware is compatible with open-source Arduino libraries for ESP32-S2, Adafruit GFX (fonts), Adafruit Sharp Memory Display (display writing), and RTC RV-3028-C7 (RTC) Arduino libraries and sample programs are under development and will be available in our GitHub repository before launch CircuitPython libraries and registration are on the roadmap, with the development of a CircuitPython library for the RV-3028 real-time clock as a key dependency Included Phambili Newt – Fully assembled with pre-loaded firmware Laser-cut desktop stand Mini-magnet feet Required screws Support & Documentation Full instructions for use GitHub: Arduino Library and Codebase GitHub: Board schematics Videos of prototypes or demos (build tracked on Hackaday)

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Arduino, MicroPython, and CircuitPython-compatible compact development board powered by Raspberry Pi RP2040 RP2040-0.42LCD is a high-performance development board with integrated 0.42" LCD (70x40 resolution) with flexible digital interfaces. It incorporates Raspberry Pi's RP2040 microcontroller chip. The RP2040 features a dual-core Arm Cortex-M0+ processor clocked at 133 MHz with 264 KB internal SRAM and 2 MB flash storage. Specifications SoC Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller at up to 125 MHz, with 264 KB SRAM Storage 2 MB SPI flash Display 0.42-inch OLED USB 1x USB Type-C port for power and programming Expansion – Qwiic I²C connector– 7-pin and 8-pin headers with up to 11x GPIOs, 2x SPI, 2x I²C, 4x ADC, 1x UART, 5 V, 3.3 V, VBAT, GND Misc – Reset and Boot buttons– RGB LED, power LED Power supply – 5 V via USB-C port or Vin– VBAT pin for battery input– 3.3 V regulator with 500 mA peak output Dimensions 23.5 x 18 mm Weight 2.5 g Downloads GitHub

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