Feature:  This is a module that integrates two 8x8 dot matrix screens and supports the display of letters, characters, expressions and Chinese characters.  It is used for robot facial expression presentation, car head tips, and various diy design cases where character notices are required. ...

Feature:  Product name: Universal folding solar power bank.  Features: foldable expansion solar panel; twice the light absorption; three times the light absorption; four times the light absorption; waterproof function; strong light.  Solar power: =144*75(1.5W)=144*150(3W)=144*225(4.5W)=144*300(6W).  Input: 5V-2A.  Output: 5V-2.1A (Max).  Capacity: actual capacity 8000mAh.  Material:...

Specification:  Working voltage: DC 3-14V; Size: 17 x 17 x 1mm;    Package included:  10 x DIY simple red flashlight circuit kits

Featrures:  - Foldable storage design, external mesh bag can hold mobile phones and data cables, outdoor charging is more convenient.  - High light transmission, tough and anti-aging material, worry-free charging.  - Using the third-generation Sunpower solar panels imported from the United States, the photoelectric conversion rate...

Feature:  Main chip: STM32F103RBT6 (64pin) LQFP64;  Chip FLASH: 128K, Chip SRAM: 20K;  Human-computer interaction: 8 LEDs, 4 buttons, adjustable potentiometer, 2 four-position common anode digital tubes, 1 active buzzer;  Storage: External expansion 16Mbit SPI FLASH (W25Q16), External expansion EEPROM 24C02, the chip comes with...

Description:  This mini-Tesla arc plasma speakers in the actual experience compared to traditional speakers in the high-frequency sound better, and compared to spark plasma arc plasma speaker with good sound quality, can play any music, no need to grounding, easy to use and so...

Features:  1.Design For Laser Shows or Stage Lighting Effect. Simple design and good integrity.  2. High brightness and good stability.  3.One switch button. Flexible operation, lightly press to boot.  4.A compact rechargeable Li-on battery pack built on. Large battery capacity and long life.  5.With...

Description:  This is a test fixture dedicated to module testing. It is suitable for modules and boards without soldering pin headers.  Feature:  -Great to test OPEN-SMART I2C OLED, I2C ADXL345 Accelerometer and other 4pin modules. (1X4P only) -Number of Pins: 1X4P/1X3P(Optional).  -Pin pitch: 2.54mm. ...

Description:  DIY CD4017+ne555 Strobe Module Electronics Learning Kit -2021.    Specification:  Operating voltage: 12V;  Dashboard size: 5.4 * 3.1CM;  Light board size: 3.5 * 2.6CM;  Flashing Mode Strobe Kit:( flicker frequency is adjustable);  Flash 2 times left and right flash 2 times, all bright...

Features:  1: The use of STM8 industrial control center microcontroller.  2: Strong and weak electricity through optocoupler insulation, safe operation.  3: The power cable and foot switch line adopts the bolt the quick connect terminal, more convenient and reliable.  4: Input time, current using...

Description:  This package consists of solar panels, solar charging modules, photosensitive modules, and control modules. Using the light sensing module to calculate the position of the light, adjust the steering gear to rotate the most sufficient direction of the solar panel to the light,...

Note: This is a DIY kit, you need to assemble it. Feature:     The ICL8038 is a precision oscillating integrated circuit with multiple waveform outputs. The frequency and duty cycle of the output waveform can also be controlled by current or resistance. Since the chip has...

DIY Class A 6J5 Vacuum Tube Preamp Preamplifier HIFI Headphone Amplifier Kit -2021.    Specification:  1. 16 HZ-28.5KHZ;  2. Headphone Impedance: 16-600ohm;  3. SNR:> 108db;  4. Channel separation <-100db;  5. Distortion: <0.003% (distortion noise but not all, of the second harmonic modified sound);  6....

   Specification:  Product: Monocrystalline Solar Panel.  Size: 420*420*2.5MM.  Material composition: PET.  Maximum power: 30W.  Output: Dual USB+DC.  Open circuit voltage (VOC): 18V.  Short circuit current (Isc): 1.6A.     Package Included:  1 x solar panel

Description:  Model: XH - M229; Compatible with the port: ATX (compatible with partial BTX type); The PIN number: 24 pin; Switch: Yes; Number of sets of output: Four sets of different voltage; Size: 12.8x4.8cm/5.04x1.89". Package included: 10 x XH-M229 24 Pin Desktop Chassis Power...

Feature: Size: 56 x 21 x 11mm. Fixing hole: 3mm. Pitch: 15mm. Color: red yellow green. LED: 5mm * 3. Brightness: Normal brightness. Voltage: 5V. Input: Digital level. Interface: common cathode, red, yellow and green separate control. Platform: microcontroller. Package includes: 10 x LED...

Description:  Material: red copper;  Wiring Square: 0.08-4mm;  Rated current: 32A;  Hole position: 8 in 8 out.     Package included:  10 x Terminal Block.

Features:  Protect the audio input device (if there is no protection circuit, this type of product can easily cause the failure or even damage to the electronic device! For example, if the mobile phone is touched, the touch screen will malfunction, and if it...

Specification:  Material: plastic;  Color: black;  AC: 220V 50Hz;  MAX power: 150W;  3 levels: low, medium, high, then off;  Size: 4.5 x 3.5 x 1.5cm ( L x W x H );  Cable length: about 9cm.     Feature:  CE approval.  Note: connect the wire correct. ...

Components + PCB Board  Digital Tube Display FM Digital Radio Electronic DIY Production kit -2021.    Specification:  Size: 80.5*66*56mm;  Power supply voltage: DC 4.5-5.5V;  Frequency modulation range: 87.5Mhz-108Mhz;  PCB board size: 57mm * 70mm;    Package includes:  1 x FM Digital Radio Electronic DIY...