Description:It is DIY kit, need to assemble it yourself.Color: BluePackage included:5 x DIY LED Round Flash Electronic Production Kit

Working principle: Using the SMD CD4060 control 12 red, yellow and green LED flashing, adjust RP1 can change the speed of flashing, while the music chip issued a wonderful music. The kit uses SMD components and plug-in components, is ideal for practical training requirements....

Description:   The suite,adopt a warning lamp circuit NE555 and CD4017 chip simulation to make blue LED and red LED flashing, respectively, according to the pulse adjusting RP1 flicker frequency can be adjusted. Working circuit voltage of DC9-12 v, suite does not contain the...

Feature:   Model: EH-30.  Working voltage: DC3.3-5V or 3*AA battery.  Speed: Adjustable.  PCB size: 74.4 x 43.7 x 24mm.  Color: Red LED.    Package includes:   5 x DIY Electronic Hourglass Kit.  Finish assembly, for reference only.

Description:Name: FM wireless microphone Kit. Type: wireless microphone. Voltage: 1.5V(1 AA battery). Effective distance: 20 meters.  Package included:5 x DIY FM Wireless Microphone Electronic Kit. 5 x Chinese manual

Feature:  This is an integrated USB HID board. Ideal for projects requiring the board to behave (act) as a USB human interface devices (keyboard, mouse, etc...).The LEONARDO is a microcontroller board based on the ATmega32U4. It has 23 digital input/output pins (of which 7...

Features: -EASY AND FAST PROCESS: All-in-one step solder and seal process. No need for crimp tools and soldering machine. Timer and mess saver. -WATERPROOF AND INSULATION: Dual-walled design - Outside Polyolefin tubing provides insulation and improves pullout strength; Hot Melt Adhesive & Solder inside ensures wires...

Features: Measurable frequency range: 1Hz to 50MHz.  Measurable signal frequency: up to 30V.  Can measure most commonly used crystal of oscillation frequency.  Five-digit accuracy resolution.  Automatic range switching.  Programmable frequency setting for measuring radio transceiver equipment.  Selectable power-saving mode, if there is no significant...

Description: Quick start: 1. Copy TFT_eSPI to the directory. 2. Open Arduin0 IDE, find TFT_eSPI in the file and example, the T-Display factory test program is located at TFT_eSPI -> Factory Test, you can also use other sample programs provided by TFT_eSPI 3 In...

Parameter:   Specifications: 35*60*1mm(length*width*thickness).  Operating voltage: DC 12V.    Welding step:   1. Solder 14 resistors, 2 diodes, 3 zener diodes. Do not solder in the wrong place; pay attention to the positive and negative electrodes when welding diodes, and use the negative electrode...

Feature:  4G LTE Cat4 Beidou GPS Dual Frequency Positioning ESP32-WROVER-B Development Board -2021.    Package includes:  1 X T-SIM7600G-H module;  1 X LTE antenna;  1 X GPS antenna

16MB ESP32 Wireless Communication Module Small Card Development Board -2021. Feature: Hardware Specifications: Main chip: ESP32 Module: ESP32-WR0VER-B,SIH7000G Interface: USB,SD Card, Solar Input interface Flash Memory: 16M Flash / 8M PSRAM Button: Reset, Power switch USB to TTL: CH9102F Car Clock: 40HHz SIM Card...

Description: OPS-1 light control switch has two trigger modes and two output modes:  1). Set trigger mode by JMP1: Light trigger mode (1-3): When the photosensitive resistance induction to the outside light from the matt to light or light gradually increased, the relay pull....

FR-4 circuit plate board using military grade A material sheet, plate, and some stability tolerance parameters, A material behaved very tough, which is in the interests of a number of other relatively cheap price sheet. PCB board parameter elements are printed directly, without reference...

Feature:  This product is based on the SX1276 chip of ESP32 WIR enhanced OLED, that is LoRa remote modem, frequency 868 / 915MHz, high sensitivity over -148 dBm, +20 dBm output power, high reliability, long transmission distance.  Onboard 32 MB flash WiFi antenna, 0.96...

Note: This is a DIY kit, you need to assemble it. No install instruction supply. Feature:    On the basis of the ordinary tesla, added a music playback function: A new concept loudspeaker for generating acoustic vibrations of air generated by an arc excited...

T-Display-GD32 RISC-V 32-bit Core Minimal Development Board 1.14 IPS -2021.    Feature:  Hardware Specifications:  Chipset: GD32VF103CBT6;  FLASH: 128KB;  SRAM: 32 KB;  On-board clock: 108MHz crystal oscillator;  Working voltage: 2.7V-3.6V;  Power: 1/3 Cortex-M3;  Peripheral:  Button: BOOT, RESET;  LCD: ST7789, 1.14 IPS, 240x135;  USBtoTTL: CP2104;  Modular interface:...

Specification:  Model: SS-12D00G3;  Type: 1 Pole 2 Throw;  Terminal Quantity: 3pcs;  Working Power: 0.5A 50V DC;  Contact Resistance: 30mΩ Max;  Insulation Resistance: 100mΩ Min at 500V DC;  Withstand Voltage: AC 500V for 1 min;  Terminal Length: 3mm/ 0.12";  Pin Pitch: 2.54mm / 1";  Main...

Update information: V1.1 (From December, 2020).    Feature:  Hardware Specifications:  Interface: USB,SD Card, Solar Input interface;  Flash Memory: 4M Flash / 8M PSRAM;  Button: Reset,Power switch;  USB to TTL: CP2104 / CH9102F (optional);  Car Clock: 40HHz;  SIM Card Size: Nano SIM Card;  SIM Antenna Model: Full...

Feature: Power supply: 9V-12V (Recommended 9V laminated battery).  Antenna: 50 ohm, unbalanced.  Frequency range: transmitter local oscillator frequency: 7023kHz; receive local oscillator frequency: about 7023-7026KHz Headphones: low-impedance headphones.  Transmit power: 0.8W (using a 9V power supply), 1.2W (12V power supply).  Suppress spurious (harmonic):-20dB.  Note:...