Useless box diy kit

Useless Box DIY Kit Useless Machine Birthday Gift Toy Geek Gadget Fun Office Home Desk Decor Description: Item: Useless Box DIY Kit Color: Blue, Red Type: DIY (Do It Yourself) Weight: About 250g Main Material: Acrylic+Electronic Parts Assembled Size: About 140*80*60mm Battery Required: 2pcs 1.5V AA Batteries (NOT INCLUDED) Features: Endless Fun: A totally useless box that provides endless fun! With this perpetual machine every time you flip the switch on, a little finger pops out and turns itself off! DIY Kit: The Do It Yourself Useless Box Kit does not come assembled. A great geek gift. Perfect as a cool teen gadget gift. NOTE: There are protective plastic films on the plates (box surface). You can peel them off or not. In case of scratch, it would be better to peel the plastic films off after you assembled the box. Surface with plastic films should be outside. "Useless Box" is not carved on the plates (box surface). Choking Hazard--Small Parts. NOT suitable for children under 3 years old. Package Included: 1 X Useless Box DIY Kit

DIY Kit Dual USB 5V 1A 2A Power Bank 18650 Battery Charger Box Description: This DIY kits battery need welding battery or connect the battery to the charge board by yourself. The maximum output current is 2.1A and minimum output current is 1A. Both sides of the charging port will be based on how much current the smart phone receives the output number, so no need to consider which port should be used when charging your mobile phone. Features: 1. LED Blue backlight 2. Input: 5.0V /1A 3. Output voltage: 5.0V 4. Output current: 1A / 2.1A 5. Capacity: Can be installed 4 x 18650 3.7V 6. Dimensions: 107 x 70 x 25 (mm) 7. Color: White, Black Package included: 1 x DIY Power Bank Kits (NO Battery)

Product is brand new still in box. Excellent deal. Please contact me for more detail. Main Features: Supports SD card or off-line print, specially convenient when without computer. 130 x 100mm engraving area, just right for you. LCD screen shows your printing information directly and easy for you to manipulate. 0.1 - 0.3mm layer resolution accelerates the design process. Supports multiple 3D printing filament: ABS / PLA / wood / nylon PVA / PP / luminescent. All metal pulleys for improving functionality and performance. Quick-release feed gears for faster and more fluent filament feeding. Operating system: Windows XP / Mac / Linux. Designed to provide redefined usability, quality and performance. Made from piano-black laser-cut acrylic frame to maintain the garage-built feel and the handmade charm. Suitable for a wide range of customers, young or old, professional or amateur etc.. High printing precision, stainless steel rail rods, gears, bearings and connectors for smoother movement. It is unassembled DIY kit, which provides you an unforgettable step-by-step learning experience of 3D printer from scratch. As long as you have a passion for creativity, you can not afford to miss this product. Engraving Area: 130 x 100mm Frame material: Acrylic plate Platform board: Aluminum Base Nozzle quantity: Single Nozzle diameter: 0.3mm Layer thickness: 0.1-0.3mm Memory card offline print: SD card LCD screen: Yes Print speed: 100mm/s Supporting material: ABS,Luminescent,Nylon PVA,PLA,PP,Wood Material diameter: 1.75mm File format: G-code,OBJ,STL XY-axis positioning accuracy: 0.012mm Z-axis positioning accuracy: 0.004mm Host computer software: Cura,Repetier-Host

Instructions phone calls lights: Phone calls phone calls lights kit can be used to sense the GSM signal display, sensing distance up to 1 m, is a very interesting DIY module. Electrical characteristics: Supply voltage: 3 to 12V Sensing distance: about 1 m PCB board size: 2.2cm * 2.8cm Scope: GSM mobile phone signal, for CDMA phones are useless Note: This is a DIY kit, you need to assemble it. The circuit theory: The main circuit is amplified antenna sensor signal circuit and circuit. Sensing signal through the antenna 3 to S8050 transistor amplifier to drive the LED, so that light up. When no signal is detected, no calls or no GSM phones, LED circuit is not only detects the signal to light up LED. Inductance of production: Inductance 0.25 to 0.5MM enameled available in pen core above can be around 5-10 laps. After a good round with a blade to scrape paint inductor 2, so we go soldered to the board. Package includes: 5 x DIY Kit

The battery shown on the picture is jutst for reference. Description: - SCM ultrasonic probe to read the data conversion, the conversion of data in the digital tube display, can be set by the key to avoid the distance barrier. - The battery box is replaced by a four-section battery box, power is more robust. Specifications: - Product Name: Intelligent ranging car kit - Board Sze: 10.8cm*7cm - Style: Unassembled Kit Note: * Please allow 1-3CM differs due to manual measurement. * Due to different producing batches, product details might be a little different. Package Included: 1 x D2-4 Intelligent Ranging Car Kit (not included the battery)

Features: This car is the tachometer encoder With a 4 AA battery box(The battery is not include) Can be used for distance measurement, velocity Mechanical structure is simple, it is easy to install Can use with other devices to realize function of tracing, obstacle avoidance, distance testing, speed testing, wireless remote control Specifications: Size: 20x14cm / 7.9''x5.5'' Wheel size: 6.5x2.5cm / 2.6''x1'' Gear Motor reduction radio: 1:48 Package Include: 1 X Car Chassis 2 X Gear Motor(1:48) 2 X Car Tire 2 X Speed Encoder 2 X Fastener 1 X Universal Wheel 1 X Screwdriver 1 X Battery Box (battery is NOT included) All Necessary Screw And Nut

Introductions: - Imported Ozon wood as raw material, cut by laser - The structure fully utilizes Luban's wisdom to achieve less screws and simplifies the assembly process for the user. - After the installation is completed and the battery is attached to this "weight block", the tumbler balance principle is fully utilized, and the center of gravity is changed by a powerful and powerful motor to realize the movement of the hot wheels. - In the process of self-assembling and reviving the hot-wheel robot, the child has a deeper understanding and study of the principles of mechanics and electronics. - This robot is able to be remote controlled with the help of "Goble" - A Generic BLE APP Controller. (iOS Only) **The wiki about this product for your reference. Please clcik. Specifications: - Dimensions: 120 x 120 x 85mm -  Operating Voltage: 6 - 10V -  Operating Current: 0 - 3A -  Operating Temperature: 0 - 60°C -  Master controller: Romeo BLE mini control board -  Range: Open area within 30m -  Arduino Bluetooth remote update program -  Microprocessor: ATmega328P -  Boot loader: Arduino UNO -  2-way 1.5A current H-bridge motor driver interface -  Drive: two differential drive -  Motor no-load speed: 230 ± 10% rpm -  Max Speed: 1 m/s Note: 1. This product is suitable for children and adolescents aged 8 years and over. Children under 6 years old should be accompanied by parents. 2. The battery connection must be confirmed again and again. Do not reverse it. Otherwise it will burn out the control board. 3, the current APP only supports iOS client, Android client is under development! Package Included: Romeo BLE mini main control board (DFR0351)x1 Hot Wheel A Board x1 Hot Wheel B Board x1 Geared motor x2 Battery box x1 Screw package x1 Manual x1

DIY LM386 Amplifier Speaker Kit With Clear Box Transparent Case Description: The speaker box is kit, it need assemble all parts by yourself. (Please note before buying. We do not supply you a manual) The box size: 101 x 78 x 76mm Power supply: 9-12V DC Speaker parameters: Dimensions: diameter 52mm Total height: 28 mm Speaker resistance: 8 Ohm Rated power: 2W Maximum power capacity: 5W LM386 amplifier kit list: 1 x PCB board 1 x 100K adjustable resistor 1 x Potentiometer knob shell 1 x Pin Header(6-pin) 2 x 4.7K resistor 1 x 10 ohm resistor 2 x 104 ceramic capacitor 1 x DIP8 IC socket 1 x LM386 IC 1 x DC005 Block 1 x 3MM LED 1 x 10UF capacitor 1 x 100UF capacitance 1 x 1000UF capacitor 1 x 3.5 Audio Block KA2284 level indicator kit list: 1 x PCB board 2 x XH2.54-2P curved seat 2 x XH2.54-2P line 1 x 100 ohm resistor 1 x 10K resistor 1 x 2.2UF electrolytic capacitors 1 x 10UF electrolytic capacitor 1 x 103 blue white color potentiometer 1 x KA2284 chip 5 x 5MM green hair green LED 1 x 5MM red red LED

Feature:   Two-color LED strobe fun DIY kit parts produced. Simple and practical, easy installation, low power consumption.   Technical specifications:   Product Name: DIY Flash Kit Color: Two color in random Dimensions: 9x3cm / 3.54 "x1.18" Voltage: 3-5V   Package Included:   1 x Flash Kit DIY (with battery box) 1 x Instructions

DIY Radio 40M CW Shortwave Transmitter Kit Receiver 7.023-7.026MHz Brief introduction: This kit is a classic low-power transceivers. This is a very small volume of simple 40 meter band micro-power amplitude telegraph transceiver uses a 9V square battery. The reception is good, highly readable code, is the entry of the most junior amateur radio choice! Technical parameters: Power supply: DC 9V-14V Antenna: 50 ohm, unbalanced Receive quiescent current: 10mA @ 9V Transmit power: 0.8W @ 9V, 1.2W @ 12V Frequency range: launch 7.023MHz, receive 7.023-7.026MHz (7.023MHz crystal) Mode: CW Shell selection and installation: Beautiful metal case not only for item considerably, and can effectively shield nearby interference. There are many optional shell, for example, metal cans, aluminum boxes, medical elongated aluminum box and so on. Select the box in time to pay attention as easy to open, because the battery ran out and need replacing. Recommendations: The confidential achieve better results, set the antenna performance can not be less than the full length of the horizontal half-wave dipole antenna, in conjunction with the use of Simple Barron, antennas should be kept away from sources of interference, such as fluorescent lights, computer monitors, switching power supplies and other equipment as much as possible with the coaxial cable as feeders to reduce possible interference received, as a small selection of the broadcast interference morning or late at night listening to get the best results listen to SSB and CW signals signal. Note: We don't supply any manuals please note about this before you order it. Package included: 1 x Shortwave Transmitter Receiver 7.023-7.026MHz QRP Pixie Kit

Description: This kit is designed into ten different Christmas snowman cute cartoon characters, each Christmas snowman middle character is combined into "CHRISTMAS!", and there is a full color LED behind, with 14 full colors LED gradient modes, each LED The effect is matched with a different Christmas song, with a total of 14 Christmas songs built in, so that the effect of the combination of sound and color can increase the Christmas day atmosphere. Assemble manual: Click here! Features: A PCB board consisting of 10 different Christmas snowman images; The middle letters of each Christmas snowman are combined into a "CHRISTMAS!" character; 14 different Christmas songs (see the list of songs for details); 14 kinds of backlight LED full-color effect; Using DIP components design for beginner easy soldering; The switch powers up automatically to switch between different backlight modes and different Christmas songs; Can be set to turn music on or off; Use a Mini USB cable to connect a 5V output computer or mobile phone charger for power supply; Adopt 5mm diameter RGB full-color high brightness LED light design; PCB size: 200mm x 40mm; (Note: The instruction process is in the description!) T he list of songs: 1. We wish you a Merry Christmas; 2. anta Claus Is Coming To Town; 3. Silent Night; 4. When a child is_born; 5. Christmas blessing song; 6. O Christmas Tree; 7. I saw three ships; 8. It Came Upon A Midnight Clear; 9. White Christmas; 10. Joy To The World; 11. Merry Christmas; 12. Christmas Day; 13. Rudolph the red-nosed reindeer 14. Jingle Bells; Function: 1. Connect to the 5V power supply through the Mini USB cable or cable; 2. Toggle the middle switch to switch to the next mode and the next song; 3. The right switch can choose to turn off or turn on the music; Package included: 3 x Full Color Christmas Snowman Music Box DIY Kit

Buy DIY 5V 2A Voltage Regulator Junction Box Solar Panel Charger Special Kit For Electronic Production for R190.91

Description:   It is MF47 improved multimeter, while retaining the original for measuring DC current, DC voltage and DC resistance function will be the basis of AC voltage sensitivity increased to 9K/V this set of parts. The tester also add the new DC capacitance measurement, voltage drop (voltage regulator) parameters (LV) measurement, 1.2V-3.6V battery power measurement, and TV line tube DC voltage accuracy measurement, anti false measurement of dual protection and other new features. The meter is more suitable for the scientific research, production and maintenance of computers, electrical appliances, electronic instruments, household appliances, factories, schools, and so on.   Product features:   Capacitance direct test 1.2V-3.6V battery electric power measurement standard resistance box application TV line voltage measurement Outline dimension: 165 * 112 * 49mm Weight: 0.42kg Test environment: temperature 23¿¿¿+ 2¿¿¿ humidity: 40%-60%RH Use of the environment: temperature 0-40¿¿¿ humidity: 25%-75%RH Package included: 1 x  DIY Pointer Multimeter Training Kit

Description: Recommended power supply: 3V Cut out the six pillars in the matching box when installing so that the board can be closed to the shell, this can enlarge the effective dectecting distance. Diagram: Note: Battery is not included. Package included: 1 x Metal Detector Kit

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA Feature: Two-color LED strobe fun DIY kit parts produced. Simple and practical, easy installation, low power consumption. Technical specifications: Product Name: DIY Flash Kit Color: Two color in random Dimensions: 9x3cm / 3.54 "x1.18" Voltage: 3-5V Package Included: 3 x Flash Kit DIY (with battery box) 3 x Instructions 3pcs DIY Two-color LED Flashlight Electronic Kit Circuit Board 3pcs DIY Two-color LED Flashlight Electronic Kit Circuit Board 3pcs DIY Two-color LED Flashlight Electronic Kit Circuit Board