A Retro Roll with a Neon Soul LED-based dice are common, but their light is cold. Not so for this electronic neon dice, which displays its value with the warm glow of neon lamps. It is perfect for playing games on cold, dark winter evenings. The pips of the dice are neon lamps and the random number generator has six neon lamps to show that it is working. Even though the dice has an on-board 100-V power supply, it is completely safe. As with all Elektor Classic products, the dice too has its circuit diagram printed on the front while an explanation of how the circuit works can be found on the rear side. The Neon Lamp Dice comes as a kit of easy-to-solder through-hole parts. The power supply is a 9-V battery (not included). Features Warm Vintage Glow Elektor Heritage Circuit Symbols Tried & Tested by Elektor Labs Educational & Geeky Project Through-Hole Parts Only Included Printed Circuit Board All Components Wooden Stand Required 9 V battery Component List Resistors (THT, 150 V, 0.25 W) R1, R2, R3, R4, R5, R6, R14 = 1 MΩ R7, R8, R9, R10, R11, R12 = 18 kΩ R13, R15, R16, R17, R18, R21, R23, R24, R25, R26, R28, R30, R33 = 100 kΩ R32, R34 = 1.2 kΩ R19, R20, R22, R27, R29 = 4.7 kΩ R31 = 1 Ω Capacitors C1, C2, C3, C4, C5, C6 = 470 nF, 50 V, 5 mm pitch C7, C9, C11, C12 = 1 µF, 16 V, 2 mm pitch C8 = 470 pF, 50 V, 5 mm pitch C10 = 1 µF, 250 V, 2.5 mm pitch Inductors L1 = 470 µH Semiconductors D1, D2, D3, D4, D5, D6, D7 = 1N4148 D8 = STPS1150 IC1 = NE555 IC2 = 74HC374 IC3 = MC34063 IC4 = 78L05 T1, T2, T3, T4, T5 = MPSA42 T6 = STQ2LN60K3-AP Miscellaneous K1 = PP3 9 V battery holder NE1, NE2, NE3, NE4, NE5, NE6, NE7, NE8, NE9, NE10, NE11, NE12, NE13 = neon light S2 = Miniature slide switch S1 = Pushbutton (12 x 12 mm)

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Grove is an open-source, modulated, and ready-to-use toolset and takes a building block approach to assemble electronics. This Kit includes a Base Shield to which the various Grove modules can be connected both individually, or together in various combinations to create fun and exciting projects. All of the modules use a Grove connector, which connects each of the components to a Base Shield in just a few seconds. The Base Shield can then be mounted onto an Arduino UNO board and can be programmed using the Arduino IDE. Instructions for connecting and programming the different modules are also included in this kit. This kit was elaborated in collaboration with Seeed Studio and provides the Arduino community with the opportunity to build projects with minimal effort of both wiring and coding. This kit acts as a bridge to the world of Grove and provides a flexible way for Makers to extend their projects to include other complex Grove modules. The Kit comes includes access to an online platform with all the instructions required to plug, sketch and play with the different Grove Modules. Please note: This kit does not include the Arduino Uno board. Included 1 Base Shield that is designed to fit on top of an Arduino UNO board. It comes equipped with 16 grove connectors, which, when placed on top of the UNO, provides the functionality to various pins. It includes: 7x digital connections 4x analog connections 4x I²C connections 1x UART connection 10 Grove modules included can be connected to the base shield, either through the digital, analog, or I2C connectors on the shield. Let's take a quick look at them: The LED - a simple LED that can be turned ON or OFF, or dimmed. The button - pushbutton can either be in a HIGH or LOW state. The potentiometer - a variable resistor that increases or decreases resistance when turning its knob. The buzzer - a piezo speaker that is used to produce binary sounds. The light sensor - a photoresistor that reads light intensity. The sound sensor - a tiny microphone that measures sound vibrations. The air pressure sensor - reads air pressure, using the I²C protocol. The temperature sensor - reads temperature and humidity at the same time. The accelerometer - a sensor used for orientation, used for detecting movement. The OLED screen - a screen that values or messages can be printed to. 6 Grove cables allow you to easily connect the modules to the Base Shield without any soldering required. The Arduino Sensor Kit Library is a wrapper that contains links to other libraries related to certain modules such as the accelerometer, air pressure sensor, temperature sensor, and OLED display. This library provides easy-to-use APIs that will help you build a clear mental model of the concepts you will be using.

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Want to make a UV detector to know the UV index when you are under the sun? Grove Sunlight Sensor is a multi-channel digital light sensor, which has the ability to detect UV-light, visible light and infrared light. This device is based on SI1151, a new sensor from SiLabs. The Si1151 is a low-power, reflectance-based, infrared proximity, UV index and ambient light sensor with I²C digital interface and programmable-event interrupt output. This device offers excellent performance under a wide dynamic range and a variety of light sources including direct sunlight. Grove Sunlight Sensor includes an on-board Grove connector, which helps you to connect it to your Arduino easily. You can use this device for making some projects which need to detect the light, such as a simple UV detector for your Raspberry Pi weather station, or a smart irrigation system using Arduino if you need to monitor the visible spectrum. Features Multi-channel digital light sensor: can detect UV-light, visible light and infrared light Wide spectrum detection range: 280-950 nm Easy to use: I²C Interface (7-bit), compatible with Grove port, just plug-and-play Programmable configuration: Versatile for various applications 3.3/5 V Supply, suitable for many microcontrollers and SBCs Applications Light detection Smart irrigation system DIY weather station Included 1x Grove Sunlight Sensor 1x Grove Cable Downloads Schematic in PDF Schematic in Eagle File Si1145 Datasheet GitHub Repositoriy for Grove Sunlight Sensor Spectrum Lumen (unit) Ultraviolet index

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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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Features Plug & Play (No driver required), compatible with Windows 10/8/7, Mac, Linux and Android that support OTG. Voice Pick-up device, Far-field voice pick-up up to 5m and supports 360° pick-up pattern Acoustic algorithms implemented: DOA(Direction of Arrival), AEC(Automatic Echo Cancellation), AGC(Automatic Gain Control), NS(Noise Suppression) Built-in audio jack, which allows for plugging in headphones or speakers (speaker not included) Applications Voice pick-up device Home/Office automation device In-car voice assistant Healthcare device Voice interaction robot Other applications Technical Specifications XVF-3000 from XMOS 4 High-Performance Digital Microphones Supports Far-field Voice Capture Speech Algorithms On-Chip 12 Programmable RGB LED Indicators Microphones: MEMS MSM261D4030H1CPM Sensitivity: -26 dBFS (Omnidirectional) Acoustic Overload Point: 120 dB SPL SNR: 63 dB Power Supply: 5V DC from Micro USB or Expansion Header Dimensions: 77mm (Diameter) 3.5mm Audio Jack Output Socket

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This kit is based on ESP32 and LoRa. The ESP32 3.5" display is the console for the system, it receives the LoRa message from LoRa moisture sensors (support up to 8 sensors in the default firmware), and send control commands to LoRa 4-channel MOSFET (2 4-channel MOSFET supported, with totally 8 channels), to control the connected valves open/close, and thus to control the irrigation for multiple points. Features Ready to use: Firmware are pre-programmed for all the modules before shipping, the user can only power them up and set the ID to the console, and start to use. Suitable for none-programmers, in 3 minutes to create filed application. With Lora wireless connection: The monitor & control range can be up to few kilometer, suitable for garden/small farm. Soil moisture sensor with good corrosion resistance, can be used at least half an year with 2 AAA battery. Easy to install: Compares to cheap solution with wires, which is hard to implement in files application, there the connection wires do not needed, the whole installation clean and easy; The valves can be connected Lora MOSFET easily. Hardware & Software Open: To study Lora & FreeRTOS. The ESP32 display console/Lora Soil Moisture Sensor/LoRa MOSFE are all programmed with Arduino. For programmers/engineers, can development further more specialized application. Based on ESP32, with WiFi connection, the console can also access to internet, the create much more applications including the moisture data updating to internet for remote monitor, and remote control with MQTT. Included 1x ESP32 3.5' Display (without camera) 1x Lora Expansion for ESP32 Display 2x Lora Moisture Sensor 1x Lora 4-channel MOSFET 1x 12 V Power Supply Water Pipe (5 m) 1x 1-input & 4-output Pipe Joint Downloads Instructable: Soil Monitoring & Irrigation with LoRa GitHub

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The MicroMod DIY Carrier Kit includes five M.2 connectors (4.2mm height), screws, and standoffs so that you can get all the special parts you may need to make your own carrier board. MicroMod uses the standard M.2 connector. This is the same connector found on modern motherboards and laptops. There are various locations for the plastic ‘key’ on the M.2 connector to prevent a user from inserting an incompatible device. The MicroMod standard uses the ‘E’ key and further modifies the M.2 standard by moving the mounting screw 4mm to the side. The ‘E’ key is fairly common so a user could insert an M.2 compatible Wifi module. Still, because the screw mount doesn’t align, the user would not secure an incompatible device into a MicroMod carrier board. Features 5x Machine Screws Phillips Head #0 (but #00 to #1 works) Thread: M2.5 Length: 3 mm 5x SMD Reflow Compatible Standoffs Thread: M2.5 x 0.4 Height: 2.5 mm 5x M.2 MicroMod Connectors Key: E Height: 4.2 mm Pin count: 67 Pitch: 0.5 mm

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The ZED-F9R module is a 184-channel u-blox F9 engine GNSS receiver, meaning it can receive signals from the GPS, GLONASS, Galileo, and BeiDou constellations with ~0.2-meter accuracy! That's right; such accuracy can be achieved with an RTK navigation solution when used with a correction source. Note that the ZED-F9R can only operate as a rover, so you will need to connect to a base station. The module supports the concurrent reception of four GNSS systems. The combination of GNSS and integrated 3D sensor measurements on the ZED-F9R provide accurate, real-time positioning rates of up to 30Hz. Compared to other GPS modules, this pHAT maximizes position accuracy in dense cities or covered areas. Even under poor signal conditions, continuous positioning is provided in urban environments and is also available during complete signal loss (e.g. short tunnels and parking garages). The ZED-F9R is the ultimate solution for autonomous robotic applications that require accurate positioning under challenging conditions. This u-blox receiver supports a few serial protocols. By default, we chose to use the Raspberry Pi's serial UART to communicate with the module. With pre-soldered headers, no soldering is required to stack the pHAT on a Raspberry Pi, NVIDIA Jetson Nano, Google Coral, or any single-board computer with the 2x20 form factor. We have also broken out a few 0.1'-spaced pins from the u-blox receiver. A Qwiic connector is also added in case you need to connect a Qwiic enabled device. U-blox based GPS products are configurable using the popular but dense, windows program called u-centre. Plenty of different functions can be configured on the ZED-F9R: baud rates, update rates, geofencing, spoofing detection, external interrupts, SBAS/D-GPS, etc. The SparkFun ZED-F9R GPS pHAT is also equipped with an on-board rechargeable battery that provides power to the RTC on the ZED-F9R. This reduces the time-to-first fix from a cold start (~24s) to a hot start (~2s). The battery will maintain RTC and GNSS orbit data without being connected to power for plenty of time. Features 1 x Qwiic Connector Integrated U.FL connector for use with an antenna of your choice Concurrent reception of GPS, GLONASS, Galileo and BeiDou 184-Channel GNSS Receiver Receives both L1C/A and L2C bands Horizontal Position Accuracy: 0.20 m with RTK Max Navigation Rate: Up to 30Hz Time to First Fix Cold: 24 s Hot: 2 s Operational Limits Max G: ≤4 G Max Altitude: 50 km Max Velocity: 500 m/s Velocity Accuracy: 0.5 m/s Heading Accuracy: 0.2 degrees Built-In Accelerometer and Gyroscope Time Pulse Accuracy: 30ns Voltage: 5 V or 3.3 V, but all logic is 3.3 V Current: ~85mA to ~130mA (varies with constellations and tracking state) Software Configurable Geofencing Odometer Spoofing Detection External Interrupt Pin Control Low Power Mode Supports NMEA, UBX, and RTCM protocols over UART

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The SparkFun Thing Plus Matter is the first easily accessible board of its kind that combines Matter and SparkFun’s Qwiic ecosystem for agile development and prototyping of Matter-based IoT devices. The MGM240P wireless module from Silicon Labs provides secure connectivity for both 802.15.4 with Mesh communication (Thread) and Bluetooth Low Energy 5.3 protocols. The module comes ready for integration into Silicon Labs' Matter IoT protocol for home automation. What is Matter? Simply put, Matter allows for consistent operation between smart home devices and IoT platforms without an Internet connection, even from different providers. In doing so, Matter is able to communicate between major IoT ecosystems in order to create a single wireless protocol that is easy, reliable, and secure to use. The Thing Plus Matter (MGM240P) includes Qwiic and LiPo battery connectors, and multiple GPIO pins capable of complete multiplexing through software. The board also features the MCP73831 single-cell LiPo charger as well as the MAX17048 fuel gauge to charge and monitor a connected battery. Lastly, a µSD card slot for any external memory needs is integrated. The MGM240P wireless module is built around the EFR32MG24 Wireless SoC with a 32-bit ARM Cortext-M33 core processor running at 39 MHz with 1536 kb Flash memory and 256 kb RAM. The MGM240P works with common 802.15.4 wireless protocols (Matter, ZigBee, and OpenThread) as well as Bluetooth Low Energy 5.3. The MGM240P supports Silicon Labs' Secure Vault for Thread applications. Specifications MGM240P Wireless Module Built around the EFR32MG24 Wireless SoC 32-bit ARM-M33 Core Processor (@ 39 MHz) 1536 kB Flash Memory 256 kB RAM Supports Multiple 802.15.4 Wireless Protocols (ZigBee and OpenThread) Bluetooth Low Energy 5.3 Matter-ready Secure Vault Support Built-in Antenna Thing Plus Form-Factor (Feather-compatible): Dimensions: 5.8 x 2.3 cm (2.30 x 0.9') 2 Mounting Holes: 4-40 screw compatible 21 GPIO PTH Breakouts All pins have complete multiplexing capability through software SPI, I²C and UART interfaces mapped by default to labeled pins 13 GPIO (6 labeled as Analog, 7 labeled for GPIO) All function as either GPIO or Analog Built-in-Digital to Analog Converter (DAC) USB-C Connector 2-Pin JST LiPo Battery Connector for a LiPo Battery (not included) 4-Pin JST Qwiic Connector MC73831 Single-Cell LiPo Charger Configurable charge rate (500 mA Default, 100 mA Alternate) MAX17048 Single-Cell LiPo Fuel Gauge µSD Card Slot Low Power Consumption (15 µA when MGM240P is in Low Power Mode) LEDs: PWR – Red Power LED CHG – Yellow battery charging status LED STAT – Blue status LED Reset Button: Physical push-button Reset signal can be tied to A0 to enable use as a peripheral device Downloads Schematic Eagle Files Board Dimensions Hookup Guide Datasheet (MGM240P) Fritzing Part Thing+ Comparison Guide Qwiic Info Page GitHub Hardware Repo

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Take control of your smart environment with the compact and powerful 4-inch ESP32-S3 IPS Touchscreen Control Panel. Designed for high performance and versatility, this sleek 86-box format panel integrates advanced connectivity, intuitive touch control, and real-time environmental sensing. Features Powerful Core Module WT32-S3-WROVER-N16R8 4-inch IPS full-screen display Resolution: 480 x 480 pixels (RGB565 format) Screen Driver IC: GC9503V Touch Controller IC: FT6336U Equipped with an SHT20 Temperature and Humidity Sensor for real-time monitoring of environmental conditions. RS485 Interface using an automatic transceiver circuit Built-in WiFi and Bluetooth Applications Smart Home Control Panels Industrial Automation Interfaces Environmental Monitoring Systems IoT Projects and Custom Smart Solutions

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The T-Deck is a pocket-sized gadget featuring a 2.8-inch IPS LCD display (320 x 240), a mini keyboard, and an ESP32 dual-core processor. While it’s not quite a smartphone, it offers plenty of potential for tech enthusiasts. With some programming know-how, you can transform it into a standalone messaging device or a portable coding platform. Specifications Microcontroller ESP32-S3FN16R8 Dual-core LX7 microprocessor Wireless Connectivity 2.4 GHz Wi-Fi & Bluetooth 5 (LE) Development Arduino, PlatformlO, MicroPython Flash 16 MB PSRAM 8 MB Battery ADC Pin IO04 Onboard functions Trackball, Microphone, Speaker Display 2.8" ST7789 SPI Interface IPS Resolution 320 x 240 (Full viewing angle) Transmit power +22 dBm SX1262 LoRa Transceiver (Frequency) 868 Mhz Dimensions 100 x 68 x 11 mm Included 1x T-Deck ESP32-S3 LoRa 1x FPC antenna (868 MHz) 1x Male pin (6-pin) 1x Power cable Downloads GitHub

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The iCEBreaker FPGA board is an open-source educational FPGA development board. The iCEBreaker is great for classes and workshops teaching the use of the open source FPGA design flow through Yosys, nextpnr, IceStorm, Icarus Verilog, Amaranth HDL and others. This means the board is low cost and has a nice set of features to allow for the design of interesting classes and workshop exercises. At the same time it allows the user to use the proprietary vendor tools if they choose to. After the workshop the boards can be easily used as a development board as most GPIO are exposed, broken out and configurable through jumpers on the back of the board. There is only a minimal amount of buttons and LED that can't be disconnected and used for your own purposes. Documentation Workshop

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Features Supports NMEA and U-Blox 6 protocols. Low power consumption Baud rates configurable Grove UART interface Specifications Dimensions 40 mm x 20 mm x 13 mm Update Rate 1 Hz, max 10 Hz Baud Rate 9,600 – 115,200 Input Voltage 3.3 V / 5 V Navigation Sensitivity -160dBm Power Requirements 3.3/5V Number of Channels 22 tracking, 66 channels Time to first start Cold start: 13s Warm start: 1-2s Hot start: < 1s Antennas Antenna included Accuracy 2.5m GPS Horizontal Position Accuracy

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YDLIDAR TG30 is a 360 degrees 2D LiDAR. Based on the principle of ToF, it is equipped with related optics, electricity, and algorithm design to achieve high-frequency and high-precision distance measurement. The mechanical structure rotates 360 degrees to continuously obtain the angle information and output the point cloud data of the scanning environment while ranging. Features IP65 protection level 360 degrees omnidirectional scanning and 5-12 Hz frequency Ranging frequency up to 20 kHz High accuracy, stable performance Strong resistance to ambient light interference Class I eye safety Specifications Range Frequency 20000 Hz Scan Frequency 5-12 Hz Range Distance 0.05-30 m Scan Angle 360° Angle resolution 0.09°-0.22° Size Φ 75.8 x 34.7 mm Applications Robot navigation and obstacle avoidance Industrial automation Regional security Smart transportation Environmental scanning and 3D reconstruction Digital multimedia interaction Robot ROS teaching and research Downloads Datasheet User manual Development manual

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The matte-black circuit board is extra thick and has subtle white markings, including an alphanumeric grid and PIN labels. The wiring pattern – that of classic breadboards – is easy to see by looking at the exposed traces on the bottom of the board. The kit comes complete with the 'Integrated Circuit Leg' stand and 8 colour-coded thumbscrew terminal posts. Using the terminal posts and solder points, you can hook up to your 'IC' with bare wires, lugs, alligator clips, and/or solder joints. Connections to the 8 terminal posts are through the three-position strips on the PCB; each is labelled with the corresponding PIN. Features Anodized aluminium stand 8-32 size press-fit threaded inserts (8 pieces) pre-installed in the protoboard All materials (including the circuit board and stand) are RoHS compliant (lead-free) Tri lobular thread forming screws (6 pieces, black, 6-32 thread size) and spacers for mounting the stand. Dimensions: 13.25 x 8.06 x 2.54 mm Dimensions assembled: 13.25 x 9.9 x 4.3 cm

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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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