Yuna Maslova

Get ACS712 30A Current Sensor Module Board RobotDyn for Arduino - products that work with official Arduino boards Feature:   The Current Sensor ACS712 30A provides economical and precise solutions for AC or DC current sensing in industrial, commercial, and communications systems.  Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection.   Package includes:   1 x Current Sensor ACS712 30A Current Sensor Module Board RobotDyn for Arduino - products that work with official Arduino boards See detail

Get Hearing Aid Kit Audio Amplifier Loudspeaker Training Teaching Competition Electronic DIY Interest Production Parts Description: Voltage: 3V Audio output: 3.5M audio jack headset PCB outline size: 45 * 30mm The hearing aid kit consists of a microphone, a front low-amplifier, a power amplifier circuit, and a headphone jack. It has the characteristics of high sound receiving sensitivity, is practical for people with hearing impairment, and is simple to produce and low in cost. This kit is also an ideal training kit for learning analog circuits. Use suggestions: After plugging in the earphones, there may be screams when you first turn on the power. Do not put them in your ears first. At this time, adjust the potentiometer to the position that does not scream, and then put them in your ears to adjust until the sound is clear. Package included: 1 x Hearing Aid Kit Hearing Aid Kit Audio Amplifier Loudspeaker Training Teaching Competition E

Get 5V 9V 12V 24V 1 Way Relay DIY Kit Control Board Expansion Board Kit Features: (1) Board size: 51MM * 23MM (2) Supply voltage: 5V, 9V, 12V, 24V(depending on the relay voltage) Interface definition: VCC: positive power of relay module GND: negative power of relay module Signal: Control signal. When the input is high, the relay will be closed and the indicator light will be on. Supports 3.3V single chip or 5V single chip. Use reminder: VCC and GND input the same voltage as the relay. When the signal terminal input is greater than or equal to 3.3V (high level), the relay is pulled in. When 0V is input, the relay is reset. During the test, VCC and the signal terminal can be short-circuited, the relay is closed, and the indicator light is on, indicating that there is no problem. Package included: 1 x 1 Way Relay DIY Kit 5V 9V 12V 24V 1 Way Relay DIY Kit Control Board Expansion Board See detail

Get Pyroelectric Infrared Sensor Anti-theft Circuit DIY Kit Soldering Practice Board Circuit composition and function: The circuit consists of pyroelectric infrared sensor PIR to detect infrared, triodes VT1 and IC2A to amplify signals, IC2B and IC3 as comparators, triodes VT2 and buzzer HA to form an alarm circuit, VT3 and peripheral components to form a startup delay circuit. The circuit is equipped with rectification filter and battery E, in order to continue to supply power preventing of power failure. This circuit can be used as home anti-theft. When family leaves the room, switch S2 is closed and the circuit works. As soon as someone enters the room for a while, they will sound an alarm. The monitoring range is 7m and 86 °. Note: did not have assemble manual. Package included: 1 x Pyroelectric Infrared Sensor Anti-theft Circuit DIY Kit Pyroelectric Infrared Sensor Anti-theft Circuit DIY Kit Soldering Practice Board See detail

Get Super Capacitor Group 16V66F Automotive Electronic Rectifier Battery Protection Rectifier Description: Capacity: 66F Voltage: 0-16V Volume: 275x75x48mm Weight: 1000g Extend battery life: After the car rectifier effectively stabilizes the current flowing into and out of the battery, the battery's life is naturally longer, otherwise the high and low currents before the installation will damage the battery. (Usually can extend 1-3 years) module life 5-10 years),      1. Increase engine power, make the throttle response more brisk and sensitive 2. Improves the phenomenon of picking up cars at low gears, making shifting smoother 3. Improve ignition efficiency and make fuel burn more fully 4. Spark plugs that evenly supply power to each cylinder make the engine work more smoothly 5. Reduce the phenomenon of idling jitter to make it more stable 6. Reduce clutter interference and improve sound quality of car audio system 7. Protect the batter