Diy 5v bluetooth

Features: - Compatible with bluetooth V3.0/V4.0/V4.1 - Support FLAC/WAV/WMA/MP3 format audio - Support breakout function to second - With FM radio function - With remote control receiving function - Small size, easy to carry - Support bluetooth phone call function - Support voice promption - With AUX input port - Support TF card/ U flash drive - Size: 50 x 40 mm Package included: 1 x Bluetooth Audio Receiver Board 1 x Remote Controller 1 x AUX Cable

DIY 5V Triangular Sine Square Wave AD9833 LCD1602 Signal Generator High Precision Multifunction Kit

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA DIY 5V Triangular Sine Square Wave AD9833 LCD1602 Signal Generator High Precision Multifunction Kit Specification: Voltage 5V, can be powered by USB Working current: 40MA Weight: 220g Rest: 105 x 82 x 20mm (L x W x H) Features: 1. Frequency control range 0-12.5, sine wave, triangle wave 5MHZ waveform distortion is more seriou, square wave 1M distortion 2. The output waveform: triangular wave, sine wave, square wave 3. The amplitude can be adjusted 0-9VPP 4. The offset can be adjusted 0-5V 5. The frequency of the keyboard preset output 6. Step value adjustable 1-1000HZ adjustable, long press to sweep 7. Using LCD1602 liquid crystal display, the display is intuitive and clear 8. Independent welding, supporting detailed installation tutorial, to create your own instrument, enjoy DIY fun Package includes: 1 x DIY Signal Generator Kit DIY 5V Triangular Sine Square Wave AD9833 LCD1602 Signal Generator High Precision Multifunction Kit DIY 5V Triangular Sine Square Wave AD9833 LCD1602 Signal Generator High Precision Multifunction Kit

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Features 1.Transform your non-Bluetooth Headphone into Wireless Headphone. 2.The adapter with built-in Micorphone and Volume control. 3.Compatible for Shure SE215 SE535 SE425 SE846. Usage Boot: Long press the answer key to boot, until hear the starting up prompt tone (voice prompt boot), then the blue light flashing. Shutdown: Long press the answer key to turn it off (voice prompt to turn it off). Battery Charging: When charging, the indicator light turns red, the blue light turns means full charge. VOL+: Long press the VOL+ key to increase the volume. VOL-: Long press the VOL- key to turn down the volume. Switch to the previous song: Short press the Vol+ key turn to the previous song. Switch to the next song: Short press the VOL- key turn to the next song. Music play: Short press the answer key. Music pause: Short press the answer key. Answer/hang up the phone: Short press the answer key. Redial: press twice the answer key can redial the last time calling phone number. Bluetooth Connection Method 1: 1pcs Phone Connect Long press the answer key to boot, until hear the pairing prompt tone (voice prompt turn into pairing mode), blue and red light is alternately flashing, find the corresponding Bluetooth device name in your cellphone, click the device name to match Bluetooth, after the success of the matching, you can hear a prompt voice shows successful matches (voice prompt matching success connected), then the blue light flashing. Method 2: 2pcs Phones Connect First, open the 2 phone Bluetooth at the same time, entering the matching pattern, find the corresponding Bluetooth device name of these 2 phone, successively click these 2 phone device name for matching (Voice prompt matching success connected, the second device connected success). Specifications Color Black Material Plastic Bluetooth Adapter Length 81cm Micro USB Cable Length 31cm Voltage 5V Bluetooth Version V4.1 Battry Capacity 120mAh Bluetooth Distance 10meter Working Time 8-10hours Audio Performance SBC,MP3,AAC,Stereo Support Bluetooth HFP v1.6, HSP v1.2, A2DP v1.3, AVRCP v1.5,SPP v1.2 Package Included 1x Bluetooth Adapter(The headphone not included) 1x Micro USB Cable  

DIY Electronic LED Spectrum Display Training Kit Voice Control Description: Board size: long 11CM, wide 1.8CM, plate thickness 1.6MMPlease allow 2mm toleranceA: 5V Red LED Spectrum KitB: 5V Blue LED Spectrum KitC: 5V Green LED Spectrum KitD: 12V Red LED Spectrum KitE: 12V Blue LED Spectrum KitF: 12V Green LED Spectrum Kit Function introduction: 1, Through the microphone to collect the external sound, according to the sound intensity, the LED will jump.2, Keys can be set to 3 modes, after setting the mode,it will be saved when power down. A, column mode B, column floating point mode C, single floating point mode3, Precision adjustable resistance adjust sensitivity, compared to the quality of the adjustable resistance is much better.4, Input voltage 5V or 12V, 12V version is more sensitive.Package included:1 x DIY Electronic LED Spectrum Display Training Kit Voice Control

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)

5V 1A AC to DC 2.00.6mm Power Adapter for Nokia or Mini Bluetooth Earphone,Holyfly DETAILS Product Details 5V 1A AC to DC 2.0*0.6mm Power Adapter for NOKIA or Mini Bluetooth Earphone Specification: Quantity: 1 pc AC Plug standard: EU, US Input: AC 110~240V 50/60Hz Output: DC 5V 1A Cable length: Approx. 1 m DC Plug Dimension: 2.0mm*0.6mm DC Plug polarity: inside positive (+) outside negative (-) Overload Protection Short Circuit Protection Over voltage protection Efficiency: ?80% Note: Please make sure the output and connector is the same as it will fit for. (It is retail, no original packaging) Package included: 1 X 5V 1A Adapter Features Clear sound, structured sound, good soundproofing Bass drivers for clear audio and Accurate accurate response that together provide an unforgettable experience Advanced technology provides a total audio immersion. acoustic positioning precision enhance the sensitivity of the speaker unit, bringing you vivid sound field, sound clarity, shock feeling sound. Ideal for listening to music, webcasts, audiobooks, podcasts | Compatible with smartphones, mobiles, tablets. THE FINE PRINT This product is imported from the USA. We do not carry stock in South Africa. Warranties and guarantees are valid only in the USA. In order to obtain a warranty repair you will be required to ship your product to the USA at your cost. We can assist you in the event this happens. We use only the best couriers to deliver your products safely. Delivery takes approximately 2-3 weeks. Sometimes there are delays (hey - this is Africa) but we will always keep you informed along the way. We guarantee authenticity on every product sold. We guarantee delivery in perfect condition. We guarantee you will be happy with everything or we will give you a full refund. That's our promise to you. We have been in the import game for over 10 years. Buy with confidence. AMAZON

DIY Colorful Heart Shape LED Flashing Kit Feature: Supply voltage: 4-5.5V Dimensions: 75 x 85mm Principle: This kit contains 32 LED arranged in a heart-shaped pattern, driven by the IO port (active low); Write program control IO port to high and low level, the LED lights off or on, forming a variety of patterns effects, especially when used at night, very dynamic. Circuit is divided into three parts: the minimum system circuits, power circuits, and heart-shaped lamp circuit; Connect power 4-5.5V, press S1 latch switch (this circuit design two power interface, easy to operate), the microcontroller begin to work, 32 IO ports each string limiting resistor and LED lights connected to VCC, which LED lights which IO port is low, which is fully controlled by the program; This kit has been programmed, after assembled can be connected to display all kinds of tricks. Installation Notes: Pay attention to polarity when installing light-emitting diodes and electrolytic capacitors, long legs is positive. Note the U port direction when you install the chip seat, the positive and negative power supply can not be wrong, otherwise it will burn the chip. The middle of plug socket is positive, the outside is negative. Schematic: Click to open Package included: 1 x Heart Shape LED Flashing Kit  

DIY 2x3W Multi-function Bluetooth Wireless Small Power Amplifier Speaker Kit With MP3 AUX Radio

DIY NE555 Square Wave Signal Generator Pulse Generator Electronic Production Kits Parameter: Main chip: NE555Input voltage: DC 5V-15VInput current ? 100MAOutput current: 15MA-35MAOutput amplitude: 4.2V-11.4V V-PPMaximum output current:? 15MA (5V supply, V-PP greater than 50%),? 35MA (12V supply, V-PP greater than 50%) Application scope: 1. It is used as a square wave signal generator to generate square wave signals for experimental development and use.2. Used to generate a square wave signal that drives a stepper motor driver.3. Generate adjustable pulses for use by the MCU.4. Generate adjustable pulses to control the associated circuitry. Features: 1. Output with LED indication; (the LED is on when in the low level, the LED is on when in the high level, and the LED is flashing when the frequency is low) 2. The output frequency range is optional (use the short-circuit cap) to make the output frequency more continuously adjustable;low frequency range: 1Hz - 50Hzintermediate frequency range: 50Hz - 1kHzhigh frequency range: 1KHz - 10kHzhigh frequency range: 10kHz - 200kHz 3. The output duty cycle can be fine-tuned, the duty cycle and frequency are not separately adjustable, and the duty cycle is adjusted to change the frequency. 4. The output frequency is adjustable;cycle T=0.7(RA 2RB)CRA, RB is 0-10K adjustable;C=0.001UF at low frequency;in the middle frequency range, C=0.1UF;in the high-frequency file C=1UF;high frequency file C=100UF Package included: 1 X DIY NE555 square wave signal generator pulse generator kits