Search results for "study electronics"

Features: 1.Built-in professional recording audio processing program, MP3 format recording, one button one function, simple and convenient operation 2.Large-capacity memory allows you to record easily; large-capacity battery to meet your recording time needs 3.Intelligent noise reduction, condenser microphone recording, restore the real sound. 4.Support recording function, convenient and practical 5.Support multiple formats of MP3/WAV audio file playback, automatically shut down and save the recording when the battery is low 6.Drive-free U disk, USB2.0 universal interface, high-speed data transmission 7.Intelligent voice control recording, it coulde be effectively saving storage space and reducing useless files 8. Adopting high-definition broken code screen display, easy to operate at night and clearly visible. Specification: 1.Material: ABS 2.Color: Black 3.Size: 30x97x13mm 4.Recording distance: 10 meters 5.Recording time: 600 minutes 6.Recording format: MP3 7.Transmission interface: USB2.0 8.Power supply: 3.7V-4.2V 9.Battery capacity: 270mAh 10.Recording bit rate: 128Kbps 11.S/N (Noise Ratio): more than or equal to 70dB 12.Power supply; rated voltage: .3.7V-4.2V 13.USB input rated voltage/power: 5V300MAH--5V500MAH 14.Distortion: 0.05% 15. Memory: 8GB Packing list Recording pen(not included TF Card) X1 earphone X1 charging cable X1 user manual X1 Specification: Package Weight One Package Weight 0.13kgs / 0.28lb One Package Size 13.5cm * 7.6cm * 4.8cm / 5.31inch * 2.99inch * 1.89inch Qty per Carton 100 Carton Weight 12.00kgs / 26.46lb Carton Size 48cm * 25cm * 53cm / 18.9inch * 9.84inch * 20.87inch Loading Container 20GP: 419 cartons * 100 pcs = 41900 pcs40HQ: 973 cartons * 100 pcs = 97300 pcs

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1. Sealed appearance design, dust-proof2. Built-in metal heat sink, resistant to high temperatures3. Supports and is equipped with two 35W, 125dB high-frequency dedicated speakers4. Powered by an external 12V power supply and comes with a power cord with 2 clips5. Supports playlist selection function6. 96 x 64 LCD display, facilitating viewing of information about the played files, volume settings, and battery status7. USB2.0 transmission rate, fast transmission speedSpecification: Package Weight One Package Weight 1.01kgs / 2.24lb One Package Size 20cm * 14cm * 10cm / 7.87inch * 5.51inch * 3.94inch Qty per Carton 12 Carton Weight 14.00kgs / 30.86lb Carton Size 42cm * 32cm * 30cm / 16.54inch * 12.6inch * 11.81inch Loading Container 20GP: 661 cartons * 12 pcs = 7932 pcs40HQ: 1535 cartons * 12 pcs = 18420 pcs

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1. Video output: FHD1080P 1920x1080 (interpolation) 30FPS; HD720P 1280x720 (interpolation) 30FPS; VGA2. Video format: AVI3. Magnification: built-in 2-inch screen: 50X; 30-inch computer full screen: 300X4. Photo resolution: 40M/20M/18M/16M/12M/8M/5M/3M/2M5. Photo format: JPG6. Focus range: about 0.1cm7. Frame rate: 30FPS8. PC support: support Windows 7/8/10 (amcap software); Windows 10 system can use the system camera to view images9. Power supply: USB 5V DC10. Battery capacity: 900mAh11. Light source: 8 adjustable built-in LED lights12. Display size: 2 inches13. Size: about 6.5 x 14.5 x 5.5cm14. Weight: about 138gPacking list:- Microscope x1- Tweezers x1- Insect observation box x1- Plastic pick x12- USB charging cable x1- Manual x1- Hand rope x1Specification: General Certificate MSDS Package Weight One Package Weight 0.40kgs / 0.89lb One Package Size 15.5cm * 20cm * 6.5cm / 6.1inch * 7.87inch * 2.56inch Qty per Carton 74 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 74 pcs = 13098 pcs40HQ: 412 cartons * 74 pcs = 30488 pcs

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Description1. The ST-LINK/V2 is an in-circuit debugger and programmer for the STM8 and STM32 microcontroller families. The single wire interface module (SWIM) and JTAG/serial wire debugging (SWD) interfaces are used to communicate with any STM8 or STM32 microcontroller located on an application board.2. STM8 applications use the USB full speed interface to communicate with STMicroelectronics ST Visual Develop (STVD) or ST Visual Program (STVP) software.3. STM32 applications use the USB full speed interface to communicate with Atollic, IAR, Keil or TASKING integrated development environments.Key Features1. 5V power supplied by a USB connector2. USB 2.0 full speed compatible interface3. USB standard A to mini B cable4. SWIM specific features5. 1.65 V to 5.5 V application voltage supported on SWIM interface6. SWIM low-speed and high-speed modes supported7. SWIM programming speed rate: 9.7 Kbytes/s in low speed and 12.8 Kbytes/s in high speed8. SWIM cable for connection to the application via an ERNI standard vertical (ref: 284697 or 214017) or horizontal (ref: 214012) connector9. SWIM cable for connection to the application via a pin header or a 2.54 mm pitch connector10. JTAG specific features11. 1.65 V to 3.6 V application voltage supported on the JTAG interface and 5 V tolerant inputs12. JTAG cable for connection to a standard JTAG 20-pin pitch 2.54 mm connector13. Direct firmware update feature supported (DFU)14. Status LED which blinks during communication with the PC15. Operating temperature 0 to 50 °CApplication ExampleConnecting the PC and STM8/STM32 application board through ST-LINK/V2 to establish hardware connectionConnection with STM8 applicationsThe ST-LINK/V2 should be connected to the STM8 application via the SWIM cable. Two SWIM cables are delivered with the product:- SWIM flat ribbon with a standard ERNI connector at one end and a 4-pin connector at the other end- SWIM flat ribbon ended with a 4-pin, 2.54 mm, low-cost connector on two sidesConnection with STM32 applicationsFor STM32 developments the ST-LINK/V2 must be connected to the application using the standard 20-pin female-female JTAG flat ribbon provided.ST-LINK/V2 StatusThe LED labeled COM on top of the ST-LINK/V2 shows the ST-LINK/V2 status (whatever the connection type). When the:1. LED is blinking RED: the first USB enumeration with the PC is taking place. If it keeps blinking RED, maybe the USB driver is NOT found.2. LED is RED: communication between ST-LINK/V2 and the PC is established (end of enumeration).3. LED is blinking GREEN/RED: data are being exchanged between the target and the PC.4. LED is GREEN: the last communication has been successful.5. LED is ORANGE: ST-LINK/V2 communication with the target has failed.Specification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 16cm * 9cm * 5cm / 6.3inch * 3.54inch * 1.97inch Qty per Carton 96 Carton Weight 9.60kgs / 21.16lb Carton Size 48cm * 36cm * 40cm / 18.9inch * 14.17inch * 15.75inch Loading Container 20GP: 385 cartons * 96 pcs = 36960 pcs40HQ: 895 cartons * 96 pcs = 85920 pcs

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1. Image sensor: 34 million pixel CMOS sensor2. Video output: HDMI: 2K/1080P, USB: 1080P3. Video format: MP44. Magnification: the real magnification depends on the lens5. Photo resolution: 34MP, 21MP, 16MP, 1080P6. Photo format: JPEG7. Working distance: depends on the lens8. Video output interface: HDMI USB9. Storage: HDMI: TF card interface supports up to 64g, USB: storage in computer10. PC support: support window7/8/10 system with measurement function11. Cross line: There are a variety of colors to choose from 4 horizontal and 4 vertical lines can be moved12. White balance: support automatic manual white balance13. Language: 8 languages including English/Chinese14. Frame rate: HDMI: maximum support 60 frames, USB: 30 frames15. Exposure: manual or automatic exposure16. Electronic zoom: electronic zoom 1x-8x function, this is the camera electronic zoom is not true zoom17. Working temperature: 0-60 degrees Celsius18. Power supply mode: external 12V (wide voltage 110v-220v)19. Scanning method: progressive scanSpecification: Package Weight One Package Weight 0.45kgs / 1.00lb One Package Size 22cm * 18cm * 11cm / 8.66inch * 7.09inch * 4.33inch Qty per Carton 66 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 66 pcs = 11682 pcs40HQ: 412 cartons * 66 pcs = 27192 pcs

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Details:1. Material: Plastic2. Weight: about 350 grams3. Size: about 8.7x7.9x3.9 cm4. Printing format: 5.7 cm5. Battery capacity: 900mAh6. Working voltage: 5.0V 1A7. Charging interface: 5.0V Micro-USB8. Functions: Take photos to search for questions, sort out wrong questions, answer skills, print real questions, learn English, recite poems, Chinese characters practice, language translation, classified notes, to-do list, document printing, web page printing, interesting handbook, photo printing, Note transfer, voice recognitionFeatures:1. Built-in rich functions, both learning and entertainment2. Bluetooth connection, easy to use3. Smart label sensor, automatically matching label size4. Portable tearing port, tearing paper neatly5. Push-button opening, light touch switch, easy paper replacement6. 306DPI high-definition print head, high-precision inkless printingSpecification: Package Weight One Package Weight 0.50kgs / 1.11lb One Package Size 11cm * 9cm * 5cm / 4.33inch * 3.54inch * 1.97inch Qty per Carton 60 Carton Weight 30.00kgs / 66.14lb Carton Size 43cm * 35cm * 19cm / 16.93inch * 13.78inch * 7.48inch Loading Container 20GP: 932 cartons * 60 pcs = 55920 pcs40HQ: 2164 cartons * 60 pcs = 129840 pcs

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1. Magnification: 20 times2. Video resolution: 1080p3. Still image: 2M4. Video format: AVI5. Photo format: JPEG6. Connection: USB2.07. Bundled software: TeleCapture8. OSD languages: English, German, French, Japanese, etc.9. Operating system: for Windows 7/8/10, Mac10.12 and higher, Android 4.0 and higher10. Dimensions: 22.8 x 11.5 x 8.8 cm11. Weight: 530g/setSpecification: Package Weight One Package Weight 0.58kgs / 1.29lb One Package Size 25cm * 13cm * 10cm / 9.84inch * 5.12inch * 3.94inch Qty per Carton 50 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 50 pcs = 8850 pcs40HQ: 412 cartons * 50 pcs = 20600 pcs

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1. Built-in ST7735 driver chip2. 0.85-inch IPS display with 128 x 128 resolution, 65K color, high-definition display image3. SPI communication interface, simple interface, occupies few IO resources, convenient for embedded development4. 2.5D tempered glass panel, good light transmission, scratch-resistant and durable; edge arc design, smooth hand feel5. Mechanical key structure, pressing feels crisp, capable of coping with high-frequency usage6. Supports development on platforms such as Raspberry Pi, Arduino, ESP32, RP2040, STM32, etc., and provides complete supporting materials and sample programsParameters1. Working voltage: 3.3V2. Display color: 65K3. Display panel: IPS4. Communication interface: 4-wire SPI5. Resolution: 128 x 128 pixels6. Display size: 15.21 x 15.21mm7. Pixel pitch: 118.8 x 118.8 micrometers8. Control chip: ST7735Specification: Package Weight One Package Weight 0.03kgs / 0.07lb One Package Size 5cm * 4cm * 3cm / 1.97inch * 1.57inch * 1.18inch Qty per Carton 860 Carton Weight 27.00kgs / 59.52lb Carton Size 47cm * 38cm * 34cm / 18.5inch * 14.96inch * 13.39inch Loading Container 20GP: 439 cartons * 860 pcs = 377540 pcs40HQ: 1019 cartons * 860 pcs = 876340 pcs

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Features:1. Add startup voltage detection function2. Automatic detection of NPN and PNP transistors, N-channel and P-channel MOSFETs, diodes (including dual diodes), thyristors, transistors, resistors and capacitors, etc.3. Automatically test pin elements and display on LCD4. Reference for transistors, MOSFET protection diodes, and amplification factors that can detect the forward bias voltage of the transistors emitter.5. Measure the gate threshold voltage and gate capacitance of the MOSFET6. 1602 liquid crystal display adopts LCD (12864 liquid crystal backlight)7. Fast test speed, effective component test: 2 seconds (except for large capacitors, it takes a long time to measure large capacitance, and the measurement time is one minute is normal)8. One-click operation, boot test, one-click acquisition9. Power consumption shutdown mode: less than 20 nA10. Automatic shutdown function to avoid unnecessary waste, save battery power and improve battery lifeSpecification:1. Two-button operation, automatic shutdown2. Only 20na off current3. Automatic detection of NPN, PNP bipolar transistors, N-channel and P-channel MOS field effect transistors, junction field effect transistors, diodes, diodes, thyristors, low power unidirectional and bidirectional thyristors4. Automatically identify component pin arrangement5. Measurement of Bipolar Transistor Current Amplification Factor and Base-Emitter Threshold Voltage6. Identification of Darlington transistor by base-emitter threshold voltage and large current amplification factor7. Detects bipolar and MOS transistor protection diodes8. Gate MOS FET threshold voltage and gate capacitance measurement9. Two resistances and resistance symbol display can be measured simultaneously. The decimal value shown on the right is 4. The resistance symbols on both sides show the number of pins. So you can measure the potentiometer. If the potentiometer wiper is not shifted to the extreme position, we can distinguish the middle and both ends of the needle10. Resistance measurement resolution is 0.1Ω, can measure 50MΩ11. Can measure 325pf-100mf capacitor with 1pf resolution12. 2uf more capacitors can measure equivalent series resistance at the same time. Two can be displayed as decimal values ??with a resolution of 0.01Ω13. The two diodes can be displayed with the diode symbol in the correct order, and the diode forward voltage can be given.14. The LED was detected as having a higher diode forward voltage. The combination of LEDs is identified as two diodes15. Can measure a single diode reverse capacitance. If the bipolar transistor is connected to the collector or emitter of the base and pins, the collector or emitter junction reverse capacitance can be measured16. Can be connected with single measurement rectifier bridgeSpecification: Package Weight One Package Weight 0.25kgs / 0.54lb One Package Size 18cm * 10cm * 6cm / 7.09inch * 3.94inch * 2.36inch Qty per Carton 50 Carton Weight 14.00kgs / 30.86lb Carton Size 41cm * 37cm * 50cm / 16.14inch * 14.57inch * 19.69inch Loading Container 20GP: 351 cartons * 50 pcs = 17550 pcs40HQ: 816 cartons * 50 pcs = 40800 pcs

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1. Operating voltage: bare board version: 3.3V; Module version: 3.3V/5V2. Communication interface: 3-wire SPI, 4-wire SPI3. Display colors: E6 full color4. Gray scale levels: 25. Global refresh rate: 15s6. Viewing angle: >170°7. Refresh power consumption: <100mW8. Sleep current: <0.01μA (near 0)9. Resolution: 600 x 400 pixels10. Display size: 76.2 x 50.8 mm11. Pixel pitch: 0.127 x 0.127 mm12. Size: bare panel version about 86.6 x 56 x 0.78 mm, module version about 89.5 x 59 mmFeatures:1. No backlight required; retains the last displayed content for an extended period after power loss2. Extremely low power consumption; power is consumed primarily during refresh cycles3. Comprehensive supporting documentation provided (driver board schematics, example programs for Raspberry Pi, Jetson Nano, Arduino, STM32, ESP32, etc.)4. The module board is designed based on the Raspberry Pi 40-pin GPIO interface, making it compatible with Raspberry Pi and Jetson Nano5. The module board adopts the Raspberry Pi HAT+ standard, enhancing the interoperability of expansion boards. This helps developers design and develop faster, use various external devices more easily, and expand the functionality and performance of the Raspberry Pi6. The module version includes a reserved SPI communication interface, facilitating connection to host boards such as Raspberry Pi, Arduino, STM32, and ESP327. The module version features an onboard level-shifting chip, enabling compatibility with both 3.3V and 5V interfaces.Specification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 12cm * 8cm * 3cm / 4.72inch * 3.15inch * 1.18inch Qty per Carton 190 Carton Weight 20.00kgs / 44.09lb Carton Size 50cm * 38cm * 34cm / 19.69inch * 14.96inch * 13.39inch Loading Container 20GP: 412 cartons * 190 pcs = 78280 pcs40HQ: 958 cartons * 190 pcs = 182020 pcs

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1. The breadboard is made of ABS plastic with black printed instructions, including color codes for each strip.2. The solderless breadboard features a self-adhesive tape strip on the back for easy attachment to any surface. The contact points are marked both horizontally and vertically.3. The solderless breadboard has 830 contacts, making it easy to quickly assemble electronic circuits.It is extremely easy to use, especially with DuPont multi-color jumper cables; no soldering is required; simply plug and unplug.4. Primarily designed for breadboard prototyping, it is compatible with Arduino projects, Raspberry Pi, single-board computers, LoveRPi kits, and other DIY projects. It is ideal for labs, industry, universities, schools, hobbies, or model making.5. It ensures uninterrupted circuit connections and is designed to resist failure under various conditions, providing safe and stable connections between components.6. Set includes an 830-hole breadboard, power supply, and 65 breadboard wires.Specification: Package Weight One Package Weight 0.16kgs / 0.36lb One Package Size 26cm * 19cm * 4cm / 10.24inch * 7.48inch * 1.57inch Qty per Carton 8 Carton Weight 2.40kgs / 5.29lb Carton Size 28cm * 21cm * 34cm / 11.02inch * 8.27inch * 13.39inch Loading Container 20GP: 1333 cartons * 8 pcs = 10664 pcs40HQ: 3096 cartons * 8 pcs = 24768 pcs

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1. Screen: 2.0-inch HD IPS screen2. CMOS size: 1/4 inch3. Photo resolution: 16M, 12M, 10M, 8M, 5M, 3M, 2MHD4. Image format: JPG5. Light source: 8 LED lights (4 white lights and 4 purple lights)6. Focus mode: manual focus7. Digital zoom: not supported8. PC operating system: Windows XP, Win7, Win8, Win10, Mac OSX10.5 or higher9. Lens structure: 4P+IR10. Aperture: F4.511. Lens angle of view: 20 degrees12. Interface and signal transmission method: TYPE-C/USB2.013. Power consumption: 260MA, 1.3W14. Battery capacity: 500MAН, 3.7V15. Working time: 1.5H16. Charging time: 1H17. Supports 12 languages: English, Portuguese, Simplified Chinese, Japanese, French German, Korean, Italian, Dutch, Russian, Spanish, Arabic18. One-touch switch between white light/UV light. Simply tap on the magnifying glass to easily switch between the illumination clarity of white light and the display power of UV light. This convenient feature allows users to easily adapt to various lighting conditions, whether it is checking the authenticity of banknotes, photography, or other tasks that require different lighting spectra19. Type-C interface, which can be connected to a PC to shoot videos and photos. Whether you are shooting photos, videos, or real-time measurements, the Type-C interface ensures fast and reliable data transmission, enabling efficient workflows and easy multimedia integration20. Small size, light weight, suitable for handheld, weighing only 110 grams, ergonomic design, making it easy to manipulate and control, ensuring comfortable operation21. With wide versatility, it is ideal for a variety of tasks, suitable for close-up desktop work such as reading newspapers, documents, maps, coins, stamps, electronic parts, jewelry, photos, knitwear, plants, printed materials, or reading coupons, prescription drugs, small print on medicine bottles22. 500mAh built-in rechargeable battery, no need to frequently replace batteriesSpecification: Package Weight One Package Weight 0.15kgs / 0.34lb One Package Size 17cm * 9cm * 3cm / 6.69inch * 3.54inch * 1.18inch Qty per Carton 120 Carton Weight 18.00kgs / 39.68lb Carton Size 53cm * 28cm * 39cm / 20.87inch * 11.02inch * 15.35inch Loading Container 20GP: 460 cartons * 120 pcs = 55200 pcs40HQ: 1069 cartons * 120 pcs = 128280 pcs

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