The SQ series of handsfree probes from Sensepeek have a lower point of gravity making them even more stable compared with the original SP series of handsfree probes. All probes in the SQ series are also insulated and can be used handheld as any traditional probe but their full potential is used when measuring handsfree. The SQ series of oscilloscope probes also includes more ground options, have probe tip protection, longer cable and support for oscilloscopes with automatic scaling (10:1). All the loved features of handsfree measurement, exchangeable fine pitch spring tipped test needle, color-coded cable holders and the minimalistic design is maintained to make traditional sized and handheld probes obsolete. Both length and weight of the SQ probes are perfectly balanced to be used with PCBite PCB holders and base plate which is a must for handsfree function. Features Passive 10:1 probe with support for oscilloscopes with automatic scaling Spring-loaded test needle for fine pitch measurements Multiple ground options Color coded cable holders Probe tip protection Insulated, can be used handheld Improved probe holder for handsfree measurement when used with PCBite PCB holders Included 1x SQ350 350 MHz probe with spring tipped test needle 1x SQ probe holder for handsfree measurement 1x Testhook with detachable cables (5 cm & 10 cm) for convenient ground connection 1x Alligator cable for convenient ground connection 1x Standard ground spring, for handheld measurements at rated bandwidth 1x Unique ground spring, for total handsfree measurements at rated bandwidth 1x Set of color coded cable holders (4 colors) 1x Probe tip protection 1x Extra test needle Downloads User Guide SQXX0 Rev1.1

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Features Soil moisture sensor based on soil resistivity measurement Consists of two probes that allow the current to pass through the soil Easy to use and cost-effective Grove compatible interface( u-blox version) Specifications Dimensions: 60 x 20 x 6.35 mm Weight: 10 g Battery: Exclude Operating voltage: 3.3 V ~ 5 V Operating current: 35 mA Sensor Output Value in dry soil: 0 ~ 300 Sensor Output Value in humid soil: 300 ~ 700 Sensor Output Value in water: 700 ~ 950

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Pixel Pump is an open source vacuum pump for manual SMT assembly. It comes with a comfortable pen, a foot pedal, RGB LED buttons, and a variety of features that make hand assembly a lot more fun. It’s the perfect companion for manual SMT soldering applications, from individual prototypes to small production runs. Thoughtful, High-Quality Design Pixel Pump ships with a set of five stainless-steel nozzles in each of five different sizes, with outer diameters ranging from 0.3 mm all the way up to 1.8 mm. With this set, you should be able to pick and place most SMD components, including small 0402 passives, larger parts like inductors and ICs, and just about everything in between. The nozzles are held in place by a Luer lock slip fitting that facilitates quick nozzle changes and broad compatibility with third-party nozzles. The pen itself features a barbed connection for the air hose and incorporates four M8 steel nuts to give it some heft and to enable magnetic attachment to Pixel Pump. Tactile silicone buttons with RGB backlighting offer full control over the unit. You can change operation modes, switch between high- and low-power settings, or activate reverse mode to clean your nozzle. The buttons also allow you to configure things like vacuum power and LED brightness. Pixel Pump has a pressure-relief valve that dumps vacuum to ensure that your part gets released quickly when you release the foot pedal. Optionally, you can configure that valve to switch from suction mode to pressure mode, which quickly and easily cleans the nozzle in case you have accidentally sucked in debris like solder paste. A sintered air filter protects the vacuum pump and valves from debris that might otherwise be sucked into the system. It is accessible from the outside and can easily be cleaned and reused. A Perfect Companion For Prototype Boards & Small-Scale Manufacturing Pixel Pump was designed primarily for individuals and organizations that manufacture one-off prototypes, but it’s also well suited for small production runs. It’s super easy to use and is actually faster than an automated pick-and-place machine for smaller batch sizes, especially when combined with SMD Magazines. Pixel Pump is the perfect companion for hobbyists and professionals who love making their own PCBs. Features Comfortable pen that accommodates various vacuum nozzles Small, flexible, heat-resistant silicone hose that connects the pen to Pixel Pump Magnetic base for the pen Strong, adjustable vacuum, perfect for picking small and large components alike Tactile, silicone RGB-button interface Foot pedal for triggering the pump Adjustable high/low power settings Adjustable LED brightness Reverse mode, which creates pressure instead of suction to clean nozzles Vacuum relief valve for quick depressurization to drop parts more quickly Easy software updates via USB Type-C Compact design that respects the limited surface area of your workbench Downloads 3D STL Files Firmware Mainboard Schematics UI Board Schematics Motor Controller Schematics

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Dragino LoRaWAN IoT Kit v3 is designed to facilitate beginners and developers to quickly learn and demonstrate LoRa/LoRaWAN and IoT technology. It helps users to turn the idea into a practical application and make the Internet of Things a reality. The LoRaWAN IoT Kit v3 can be used to evaluate the multi-channel LoRaWAN solution and single-channel private LoRa solution. Users can also use LoRaWAN IoT Kit v3 to test different network structure solutions and find the best for their IoT solution. The LoRaWAN IoT kit v3 shows how to build a LoRaWAN network, and how to use the network to send data from a LoRa sensor node to the cloud server. Depends on the actually use environment, the LoRaWAN gateway will connect your other LoRa nodes up to 500~5000 m. Features Open Source LoRa/LoRaWAN kits Support multi-channels LoRaWAN and Single-Channel LoRa Support various network structures Included 1x LPS8v2 LoRaWAN Gateway 1x LA66 LoRaWAN Shield for Arduino 1x LA66 USB LoRaWAN Adapter for PC/Mobile/RPi 1x DHT11 Temperature & Humidity Sensor 1x RGB LED 20x dupont cable (male to male) 20x dupont cable (female to female) 20x dupont cable (male to female) Downloads Datasheet Manual

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Circuit Playground Bluefruit is the third board in the Circuit Playground series, another step towards a perfect introduction to electronics and programming. Adafruit has taken the popular Circuit Playground Express and made it even better! Now the main chip is an nRF52840 microcontroller which is not only more powerful, but also comes with Bluetooth Low Energy support for wireless connectivity. The board is round and has alligator-clip pads around it so you don't have to solder or sew to make it work. You can power it from USB, a AAA battery pack, or with a Lipoly battery (for advanced users). Circuit Playground Bluefruit has built-in USB support. Built in USB means you plug it in to program it and it just shows up, no special cable or adapter required. Just program your code into the board then take it on the go! Features 1x nRF52840 Cortex M4 processor with Bluetooth Low Energy support 10x mini NeoPixels, each one can display any color 1x Motion sensor (LIS3DH triple-axis accelerometer with tap detection, free-fall detection) 1x Temperature sensor (thermistor) 1x Light sensor (phototransistor). Can also act as a color sensor and pulse sensor. 1x Sound sensor (MEMS microphone) 1x Mini speaker with class D amplifier (7.5 mm magnetic speaker/buzzer) 2x Push buttons, labeled A and B 1x Slide switch 8x alligator-clip friendly input/output pins Includes I²C, UART, 6 pins that can do analog inputs, multiple PWM outputs Green 'ON' LED so you know its powered Red '#13' LED for basic blinking Reset button 2 MB of SPI Flash storage, used primarily with CircuitPython to store code and libraries. MicroUSB port for programming and debugging USB port can act like serial port, keyboard, mouse, joystick or MIDI! Specifications Outer Diameter: ~50.6 mm / ~2.0' Weight: 8.9 g

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The Waveshare ESP32-S3 4" Capacitive Touch Display is a microcontroller development board featuring 2.4 GHz WiFi and BLE 5 support. It integrates 16 MB of Flash and 8 MB of PSRAM. The onboard 4-inch 480 x 480 capacitive touch screen is capable of running GUI programs smoothly, such as those developed with LVGL. With its versatile peripheral interfaces, the board enables quick development of HMI (Human-Machine Interface) applications based on the ESP32-S3. It is suitable for a variety of scenarios, including: Smart control panels, Home gateways, Intelligent interactive panels, Industrial control systems, Smart lighting control. Specifications Processor High performance Xtensa 32-bit LX7 dual-core processor, with a main frequency of up to 240 MHz Wi-Fi/Bluetooth Supports 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE), with an onboard antenna Flash/PSRAM 16 MB Flash + 8 MB PSRAM Power Supply USB-C (5 V) + DC (7-36 V) Resolution 480 x 480 Display Interface RGB Display Panel IPS Viewing Angle 160° Touch Type Capacitive Touch Panel Toughened Glass Communication Interfaces CAN, RS485, I²C, USB Dimensions 84.2 x 84.2 mm Included 1x ESP32-S3 4-inch Capacitive Touch Display Dev Board (ESP32-S3-Touch-LCD-4) 1x Back wiring 3.5 mm pitch 10P pluggable terminal block 1x Bottom wiring 3.5 mm pitch 10P pluggable terminal block Downloads Wiki

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This 5.83-inch 3-color e-paper e-ink display module for Raspberry Pi Pico offers a resolution of 648 × 480 pixels, an SPI interface, low power consumption, wide viewing angle and a paper-like effect without electricity. Features No backlight, keeps displaying last content for a long time even when power down Ultra low power consumption, basically power is only required for refreshing SPI interface, requires minimal I/O pins 2x user buttons and 1x reset button for easy interacting Comes with development resources and manual (Raspberry Pi Pico C/C++ and MicroPython examples) Specifications Operating voltage 3.3 V Display color Red, black, white Resolution 648 × 480 pixels Gray scale 2 Interface 3-wire SPI, 4-wire SPI Viewing angle >170° Partial refresh time N/A Full refresh time 5s Outline dimensions 125.4 × 99.5 mm Display size 119.232 × 88.320 mm Refresh power 26.4 mW (typ.) Standby current <0.01 uA (almost none) Dot pitch 0.184 × 0.184 mm Applications Suitable For Price Tags Asset/Equipment Tags Shelf Labels Conference Name Tag Included 1x 5.83-inch e-Paper (B) 1x Pico-ePaper-Driver-Board 1x Standoff pack Downloads Wiki

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The nRSP-ST is a networked general coverage radio receiver for frequencies from 1 kHz to 2 GHz with up to 10 MHz of spectrum visibility. The nRSP-ST is your own personal remotely accessible SDR which can also be shared with a small number of trusted friends or colleagues. The nRSP-ST addresses the needs of radio enthusiasts who want a 'plug-and-play' solution for remote reception. As well as achieving this, we have addressed typical internet bandwidth limitations with the creation of a novel IQ Lite mode, which efficiently delivers channels of IQ data. We are also introducing the ability to control and store IQ recordings at the remote location. The nRSP-ST is ideal for anyone wanting a wideband remote receiver without needing computer skills and hours of set-up time and ongoing maintenance at the remote location. Features "Plug and play" integrated, networked general coverage receiver: Combines a receiver, a host computer and a whole lot more – all in one box! Apply power and connect to the internet (Ethernet or Wi-Fi) and the nRSP-ST is automatically accessible from anywhere Multi-platform SDRconnectTM software supports local operation or remote access on Windows, MacOS or Linux platforms The nRSP-ST & SDRconnect are configurable for available network bandwidth: In Full IQ mode, the nRSP-ST provides IQ data transfer of the visible spectrum bandwidth (e.g. for high-speed LAN or superfast internet connectivity) In IQ Lite mode, the nRSP-ST provides IQ data of channels up to 192 kHz wide (e.g. for digital decoding by the client) In Compact mode the nRSP-ST provides compressed audio (ideal for slower internet connections) Supports multiple client connections with a simultaneous mixture of connection modes – an admin tool allows you to assign usernames and timeouts to trusted friends or colleagues. All modes support visualization of up to 10 MHz spectrum bandwidth Two remote connection options: Use a remote SDRconnect client or Use the built-in web-server for remote access from any web browsing capable device, including Android/iOS tablets and phones The nRSP-ST offers the ability to record IQ and audio files to a NAS (network attached storage) device if available on the LAN. The 14-bit ADC full featured wideband SDR receiver covers all frequencies from 1 kHz through VLF, LF, MW, HF, VHF, UHF and L-band to 2 GHz, with no gaps Remotely monitor up to 10 MHz of spectrum at a time from a choice of 3 antennas Flash upgradable for future feature enhancements Included 1x nRSP-ST Receiver 1x WLAN antenna 1x Power supply 1x Manual Downloads Release notes Software

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Features Operate voltage: 3.3 V - 5 V Input current: 100mA Rated load: 5 A @ 250 VAC, 5 A @ 30 VDC Contact resistance: 50 mΩ @ 6 VDC 1 A Insulation resistance: 100 MΩ 10 ms Max. Operate time: 10 ms Max. Release time: 5 ms Max. Input interface: Digital Dimensions: 42 mm x 24 mm x 18.5 mm Included 1 x Grove Relay 1 x User Guide Downloads Grove Relay Schematics

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The QA451 is designed for high-speed testing of amplifiers. If you are testing at the module level (with modules designed for single supply operation), the QA451 allows the on/off control and current measurement of the supply rail. The QA451 is a companion product to the QA403 Audio Analyzer. When combined, the products work together to ensure fast, repeatable automated measurements of audio power amplifiers up to several hundred watts. Features Programmable 4/8 Ω load Fully isolated from PC USB powered Up to 200 W for 220 mS DC Current Sensing Integrated 6th order LPF REST Interface The QA451 can be controlled manually from a PC application or controlled using a web-based REST interface. Measuring Current The QA451 allows low-cost external fixed-voltage supplies to be used to power your amplifier during test – dramatically reducing your investment per test bay. The QA451 integrates a high-side switch, enabling on/off control of the supply to the amplifier. When turning on the supply, a momentary soft-start circuit ensures the amplifier-under-test isn’t exposed to high currents that might overstress components. And during operation, the QA451 provides an isolated current measurement, allowing up to 15 A (peak) of DC current to be measured with 10-20 mA of resolution. This permits automated efficiency measurements to be easily made – a primary predictor of whether the amplifier was assembled correctly. 4 and 8 Ω Loads The QA451 provides both 4 and 8 ohm resistive loads. The loads are thermally protected using fast, high-accuracy digital thermal sensors ensuring that fault conditions won’t damage the QA451. Downloads Datasheet Wiki Software

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The Tabloid/A3 size Magnetic Easel is a sturdy work-holding tool that provides an alternative method of positioning paper or other workpieces for use with the AxiDraw V3/A3 and AxiDraw SE/A3. A heavy-duty alternative to the regular A3 clip easel, it can be used with binder clips or the (included) positioning rulers, magnets, and magnetic spring clips. The base of the easel is a heavy-gauge sheet of magnetic steel. It has a powder-coat finish, lightly textured to help hold paper in place and light gray in color for visible contrast against most types of paper. Rubber bumpers on the bottom side (along with the substantial weight of the steel) ensure a no-slip grip on your work table. To help index your paper in a consistent and reproducible position, the easel includes two six-inch (15 cm) rulers that you can rest your paper up against. The rulers are easy to remove and reversible, with inch and centimeter markings on the two sides. They can also be removed completely if you like, leaving just a flat sheet of steel (with a few ruler-mounting holes in it). This A3 easel also includes a special set of paper holding clips and magnets: Two special spring clips with magnetic bases, plus six skinny magnets for holding down paper. The two special spring clips each have two curved tines that apply gentle pressure to your paper. They allow you to slide paper directly in and out, quickly and easily, without touching any magnets, clips, or tape. They have a long reach to be positioned behind the rulers, or elsewhere if you prefer. Magnetic bases allow you to position them where needed. Two of these spring clips provide just enough pressure to keep a sheet of paper steady while you write or draw on it. This set also includes six cylindrical magnets, 4 mm in diameter and 10 mm tall, which are easy to position and firmly hold paper. The tall aspect ratio makes them particularly easy to grasp (unlike disc magnets). Perhaps more importantly, they tend to yield and tip over if hit by an errant pen tip, rather than holding so fast as to damage your pen or move your paper. Overall dimensions: 18.12 x 12.72' (46.0 x 32.3 cm) Suitable for use with A3 and US Tabloid/Ledger paper sizes, envelopes, two sheets of Letter or A4 paper, or smaller sizes of paper.

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The board's main processor is a low-power Arm® Cortex®-M0 32-bit SAMD21. The WiFi and Bluetooth® connectivity is performed with a module from u-blox, the NINA-W10, a low-power chipset operating in the 2.4GHz range. On top of that, secure communication is ensured through the Microchip® ECC608 crypto chip. Besides that, you can find a 6 axis IMU, which makes this board perfect for simple vibration alarm systems, pedometers, the relative positioning of robots, etc. WiFi and Arduino IoT Cloud You can get your board to connect to any kind of existing WiFi network, or use it to create your own Arduino Access Point. The specific set of examples we provide for the Nano 33 IoT can be consulted at the WiFiNINA library reference page. It is also possible to connect your board to different Cloud services, Arduino's own among others. Here are some examples of how to get the Arduino boards to connect to: Arduino's own IoT Cloud: Arduino's IoT Cloud is a simple and fast way to ensure secure communication for all of your connected Things. Check it out here. Blynk: a simple project from our community connecting to Blynk to operate your board from a phone with little code. IFTTT: see an in-depth case of building a smart plug connected to IFTTT. AWS IoT Core: we made this example on how to connect to Amazon Web Services. Azure: visit this GitHub repository explaining how to connect a temperature sensor to Azure's Cloud. Firebase: you want to connect to Google's Firebase, this Arduino library will show you how. Microcontroller SAMD21 Cortex®-M0+ 32bit low power ARM MCU Radio Module u-blox NINA-W102 Secure Element ATECC608A Operating Voltage 3.3 V Input Voltage 21 V Digital I/O Pins 14 PWM Pins 11 DC Current per I/O Pin 7 mA Analog Input Pins 8 Analog Output Pins 1 External Interrupts all digital pins UART 1 SPI 1 I2C 1 Flash Memory 256 KB SRAM 32 KB EEPROM none Clock Speed 48 MHz LED_Builtin 13 USB Native in the SAMD21 Processor IMU LSM6DS3 Length 45 mm Width 18 mm Weight 5 g

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