20pcs high lock

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20Pcs 8-Channel Logic Level Translator Converter Bi-Directional Module Introduction: If you've ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be. The SparkFun bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time. This level converter also works with 2.8V and 1.8V devices. What really separates this Logic level converter from our previous versions is that you can successfully set your high and low voltages and step up and down between them safely on the same channel. Each level converter has the capability of converting 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side. The level converter is very easy to use. The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using. High voltage (5V for example) to the 'HV' pin, low voltage (3.3V for example) to 'LV', and ground from the system to the 'GND' pin. Feature: 8-channel high-voltage and low-voltage logic bidirectional translation Mini size, 4.1cm x 1.8cm Comes with 2 rows of 6pin, unsoldered Compatible breadboard, can be directly inserted in the breadboard Note: (For example: High voltage: 5V, low voltage: 3.3V) HV connect 5V power supply LV connect 3.3V power supply GND connect negative, two power supply commons LVx input and output is 3.3V TTL, HVx input and output is 5V TTL, LVx and TVx bidirectional transfers Package includes: 20 x Eight Channel Logic Level Translator Converter

20Pcs Soil Hygrometer Humidity Detection Moisture Sensor For Arduino Description: This is a summary of the soil moisture sensor can be used to detect moisture, when the soil is dry, the module outputs a high level, whereas output low. Using this sensor make an automatic watering system, so that your garden plants without people to manage. Operating voltage: 3.3V~5V. Adjustable sensitivity (shown in blue digital potentiometer adjustment) Dual output mode,analog output more accurate. A fixed bolt hole for easy installation. With power indicator (red) and digital switching output indicator (green). Having LM393 comparator chip, stable. Panel PCB Dimension: 3cm x 1.5cm. Soil Probe Dimension: 6cm x 2cm. Cable Length: 21cm. VCC: 3.3V-5V. GND: GND. DO: digital output interface(0 and 1). AO: analog output interface. Instructions for Use: 1. Soil moisture module is most sensitive to the ambient humidity is generally used to detect the moisture content of the soil. 2. Module to reach the threshold value is set in the soil moisture, DO port output high, when the the soil humidity exceeds a set threshold value, the module D0 output low. 3. The digital output D0 can be connected directly with the microcontroller to detect high and low by the microcontroller to detect soil moisture. 4. The digital outputs DO shop relay module can directly drive the buzzer module, which can form a soil moisture alarm equipment. 5. Analog output AO and AD module connected through the AD converter, you can get more precise values of soil moisture. Package Included: 20 x Soil moisture detector module 20 x Probe 20 x 2P Jumper Cable

20Pcs ND 2/4/8/16 Filter Kit Holder Wide Adapter Lens Hood LF292 For Cokin P Description: In photography, filter have the effect of "dressing".If you can use the filter flexible, it will help you improve the performance of photography, and can change the scene of the tone, make the photos more close to nature. So it is popular with photographers alike. And gradual filter is a MUST for digital users, because the digital sensor unlike film has very low exposure tolerance. Detail will be lost on both low and high light area. To correct this, you need gradual filter to balance it! Features: Control light and colour directly on your raw images at the time of shooting, Keep the quality of your images without excessive post production work,save your time. Same filter for all your lenses by just replacing the adaptor ring. Weight: 355g Fitment: Cokin P series For 8pcs Cokin ND Filter Set(Third Party) Compatible with Cokin P series. To decrease depth of field by allowing wider apertures to be used, which helps separate subjects from their background. To decrease the effective ISO of high speed film (ie: above ISO400) and allow it to be used outdoors in blight situations. To enable slow shutter speeds to be used, especially with fast films, to record movement in subjects such as waterfalls, clouds, cars, seas, etc. To allow cine and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes which would normally cause over-exposure. For 9pcs Ring Adapter + 1pcs Filter Holder(4-slots) +1pcs Wide Angle Filter Holder(1-slot) The Cokin creative system consists of 3 main components: An Adaptor Ring + A Filter Holder + 1 or more filters. Screw the adaptor ring onto your lens. Slide the filter-holder on the adaptor ring until it snaps in place. Slide the filter (up to 4) into one of the filter-holder slots. Mount Lens Hood onto your filter-holder by pressing on the upper and lower parts of the lens hood. Package Included: 8pcs Filter Set (Third Party) 1 x ND2 filter 1 x G.ND2 filter 1 x ND4 filter 1 x G.ND4 filter 1 x ND8 filter 1 x G.ND8 filter 1 x ND16 filter 1 x G.ND16 filter 9pcs Ring Adapter + 1 Filter Holder + 1 Wide Angle Filter Holder + 1 Lens Hood (Third Party) 1 x 49mm Ring Adapter 1 x 52mm Ring Adapter 1 x 55mm Ring Adapter 1 x 58mm Ring Adapter 1 x 62mm Ring Adapter 1 x 67mm Ring Adapter 1 x 72mm Ring Adapter 1 x 77mm Ring Adapter 1 x 82mm Ring Adapter 1 x 4-Slots Filter Holder 1 x 1-Slot Wide Angle Filter Holder 1 x Lens Hood Detail Pictures:  

20Pcs NE555 Pulse Frequency Duty Cycle Adjustable Module Square Wave Signal Generator Features: 1. As a square wave signal generator,generates a square wave signal used for experimental development. 2. Used to drive a stepper motor for generating a square wave drive signal. 3. Generate adjustable pulse for MCU. 4. Generate adjustable pulse,to control circuitry associated. 5. Size: 31mm x 22mm 6. Main chip: NE555 7. Input Voltage: 5V-15V DC. When power supply is 5 V, the output current can be 15 MA around; when 12V power supply, the output current can 35 MA around 8. Input current: >=100 MA 9. Output amplitude: 4.2V V-PP to 11.4V V-PP. (Different input voltage, the output amplitude will be different) 10. Maximum output current: >=15MA (5V power supply, V-PP greater than 50%), >=35MA (12V power supply, V-PP greater than 50%) 11. Output with LED indication(low level,LED will on; high level,LED will off;low frequency, the LED flashes) 12. The output frequency range is selectable: LF file: 1Hz ~ 50Hz                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        &nbs

20Pcs Laser Receiver Non-modulator Tube Sensor Module For Arduino Features: PCB size: 1.5 x 1.9cm Working voltage: 5V Output high level when receive laser signal Output low level when not receive laser signal Note: The sensor uses a non-modulated laser receiver, please use indoors where no light, sunlight or other fixtures may interfere, recommended for use in dark environments. Package included: 20 x Laser sensor module

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FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA Specifications: Color: Black Shape: Cylindrical Capacitance: 10 Farad Max Voltage: 2.7V ESR: 60mΩ permissible voltage: 2.5V Lead wire type: Same direction Diameter: 10mm Length: 26mm Allowable deviation: -20~40 (%) Dielectric material: Super farad Frequency: Low frequency Application scope: Low voltage Features: - Good quality - High cost performance - Low temperature and low internal resistance and low leakage current - The volume is small, but the capacity is big. The capacity is bigger than the same volume electrolytic capacity about 30~40 times. - The power density of the capacitor is 10~100 times of the battery. It can even reach about 10kw/kg. - Charging speed is quick. - With super long life which is up to more than 100 thousand times, and is more than 10-100 times the battery. - Less pollution. Application for: - CPU intelligent home appliance, meter, tax control machine, controller, air conditioning, recorder, MP3, car audio, telephone, solar lights, real-time clock etc. - Power supply of small power devices, such as: intelligent water meter, gas meter, disinfection cabinet, electronic door locks, solar equipment, digital set-top boxes, toys, etc.; - Electric starting system, with the battery used in various internal combustion engines such as cars, tanks, diesel locomotives, can effectively protect the battery and prolong its service life, reduce the power loss with capacity, especially in low temperature and battery case, ensure reliable start Package included: 20 x Super farad capacitor 20pcs 2.7V 10F Cylindrical Ultra Super Farad Capacitor High Power Capacitance Supercap 10 x 26mm 20pcs 2.7V 10F Cylindrical Ultra Super Farad Capacitor High Power Capacitance Supercap 10 x 26mm 20pcs 2.7V 10F Cylindrical Ultra Super Farad Capacitor High Power Capacitance Supercap 10 x 26mm

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