Best Frequency Counter Module

EC Buying AD620 High Accuracy Low Power Programmable Instrumentation Amplifier Module Voltage Amplifier Module Differential Amplifier Single-Ended/Differential Small Signal/Small Amplifiers Module

  • ...Module gain: When there is no solder slip, the AD620 will zoom by 10 times by default, and the AD623 will zoom by 20 times by default. During welding slip, AD620: G=1+50K/Rg, AD623: G=1+100K/Rg ✭Maximum magnification of the module: more than 2000 times (actual measurement), due to the large gain of the waveform frequency band, it is recommended to use multi-stage amplification with high gain ✭Fixed output voltage: 5V-10V (default delivery 5V).
  • ♥ Other parameters: ✭Common mode rejection ratio: AD620: 100dB (minimum, G=10).
  • AD623: 90dB (minimum, G=10) ✭Input bias current: AD620: 1.0nA (max).
  • AD623: 23nA (max) ✭Input offset voltage: AD620: 50μV (max).
  • AD623: 200μV (max) ✭Input offset offset: AD620: 0.6μV/°C (max).
  • AD623: 2μV/°C (max) ✭Input voltage noise: AD620: 9nV/√HZ (1KHZ).
  • ♥Precautions: 1. The power supply of the module is a single power supply, and the voltage cannot exceed 26V 2. Since the module is a high-precision device, to avoid unnecessary interference, it is recommended to use a linear power supply for power supply 3. It is recommended to use SMA to BNC line input and output signal for the output signal. Compared with the observation effect, poor contact or inferior wire may cause signal att....
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YVO Optocoupler Isolation Board,4 Channel Optocoupler Isolation Module PLC Signal Level Voltage Conversion Board,Can be Used for Signal Isolation,Signal Level Voltage Conversion (24V to 5V)

  • 【Widely Use】: Our optocoupler isolation board can be used for signal isolation, PLC signal level converting, level conversion between single-chip microcomputer, PLC and other signals, PNP / NPN signal to NPN signal, signal level voltage conversion and other purposes..
  • 【20K Limit Switching Frequency】: The maximum switching frequency of our optocoupler isolation is 20K..
  • 【Easy To Recognise】: Each channel of our optocoupler isolator module has been equipped with indicator, easier to recognise the working status..
  • 【Size Parameters】: Module Dimensions: 72*55*18mm (length*width*height). Mounting Hole Size: 64*47mm. Mounting Hole Diameter: 3mm..
  • 【SHOPPING WITH CONFIDENCE】: We are committed to providing you with quality services. If you have any question, please feel free to contact us by sending emails.We will provide after-sales service until you are satisfied..
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Juried Engineering LM339N LM339 Quad Differential Comparator Industrial Grade Breadboard-Friendly IC DIP-14 (Pack of 5)

  • SINGLE-CHANNEL: TLV3501 is a single-channel high-speed push-pull output comparator, delay is 4.5ns, supply voltage: + 2.7V to + 5.5V.
  • FRONT SHAPING MODULE: This module can be for a wide range of voltage signal shaping period, as the frequency, phase difference time domain measurements and other front-end conditioning module.
  • CMOS AND TTL: Rail-to-rail output can directly drive a CMOS or TTL logic.
  • EASY TO OPERATE: Without threshold setting, the sine wave, square wave and triangular wave can be transformed into square wave, which can be used easily without debugging.
  • GREAT EXTENSIBILITY: At the same time, it has great extensibility, just change a small amount of the original.
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KEYESTUDIO MEGA Sensor Shield V1 for Arduino MEGA R3 2560 Prototype Board Projects

  • Nice Sensor shield of MEGA Rev3, Easy prototyping and Very convenient especially for 3PIN (G V S) connections. There are tons of ground and VCC headers making really it easy to connect various Arduino modules and sensors with DuPont style cables..
  • This sensor shield board really simplify the circuit and easily connect commonly used sensors.The board is having digital and analog interface, Bluetooth module communication interface, SD Card module communication interface, APC 220 radio frequency module interface, etc..
  • This sensor shield allows ease development and prototyping and makes convenient way to connect many external devices/sensors..
  • This board works well for prototyping or certain permanent applications and a very handy companion to an Mega Rev3 or compatible board..
  • 100% Compatible with the programming software for Arduino. Excellent shield board in good quality and packaged in a nice box! Great for all kinds of scientific experiment research for Arduino.
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ACEIRMC 2pcs ESP32-CAM WiFi Bluetooth Board ESP32-CAM-MB Micro USB to Serial Port CH340C with OV2640 2MP Camera Module Dual Mode for Arduino

  • The ESP32-CAM-MB module is a small camera module with a size of 39.8MM*27MM.
  • ESP32-CAM-MB adopts Micro USB interface, convenient and reliable connection method, convenient to apply to various IoT hardware terminal occasions.
  • ESP32-CAM-MB module can work independently as the smallest system.
  • WiFi+Bluetooth dual-mode development board based on ESP32 design, using PCB on-board antenna, with 2 high-performance 32-bit LX6CPU, using 7-level pipeline architecture, main frequency adjustment range 80MHz to 240Mhz.
  • Ultra-low power consumption, deep sleep current is as low as 6mA. It is an ultra-small 802.11b/g/n Wi-Fi + BT/BLE SoC module.
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Pulse Generator, DROK 2pcs LCD Display PWM Frequency 1Hz-150kHz Duty Ratio 0-100 Percent Adjustable Square Wave Rectangular Wave Signal Generator Board

  • DROK pulse generator module operating voltage range is DC 3.3-30V, adjustable pwm frequency range is 1Hz-150kHz, adjustable duty ratio range is 0%-100%..
  • Application: it can be used as a square wave signal generator, generate square wave signal for experimental development.
  • generate square wave signal to control the motor driver.
  • generate adjustable pulse to control the relevant circuit (PWM dimming speed application etc)..
  • High Frequency Resolution: frequency in range 1Hz~999Hz, display resolution is 1Hz.
  • range 1.00kHz~9.99kHz, display resolution is 0.01kHz.
  • range 10.0kHz~99.9kHz, display resolution is 0.1kHz.
  • range 1kHz~150kHz, display resolution is 1kHz..
  • TTL Level Communication: the frequency meter is designed with single-chip TTL level communication, communication standard is 9600 bps..
  • LCD Display: the blue LCD clearly displays frequency and duty ratio, PWM output can set frequency and duty ratio independently..
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16mA Logarithmic Amplifier Module 100 DB Amplifier Board 5MHZ‑500MHZ SMA Detector Module for FSK PSK Demodulation Signal Reception

  • Logarithmic Amplifier Module: Logarithmic output of the logarithmic amplifier module is proportional to the logarithm of the input signal..
  • RSSI Linearity: ±0.4 dB RSSI linearity, RSSI scale does not change with temperature and feed voltage..
  • Apply to: Used for received signal strength indicator (RSSI) and phase detection in cellular base stations, radar and other radio transceiver applications..
  • Specific Parameters: 16mA current, 20 mV/dB slope, ‑95 dBm intercede, SMA female, 5MHZ‑500MHZ frequency range, 100 dB gain. Dynamic Range: 100 dB -78 dBm to +22 dBm (Re 50 O). Total Gain: 100 dB. Bandwidth: 500 MHz. Sleep Current: 003c1mA..
  • Founction: AD8309 amplifier module, with limiting output, can be used as FSK PSK demodulation. Input and Output Interface: SMA Female..
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XISAOK UART Serial MP3 Music Player Module with Speaker Monaural Amplifier Board for Arduino MP3 Music Player Module

  • ㊥ Our product design is unique, not only beautiful but also practical..
  • ㊥ The module is a kind of simple MP3 player device which is based on a high-quality MP3 audio chip. It can support 8k Hz ~ 48k Hz sampling frequency....
  • ㊥ There is a TF card socket on board, so you can plug the micro SD card that stores audio files. MCU can control the MP3 playback state by sending....
  • ㊥ UART port, such as switch songs, change the volume and play mode and so on. You can also debug the module via USB to UART module. It is compatible....
  • ㊥ Our Brand is dedicated to provide high standard products,we have confidence in our products and provide after sale support,if you have products....
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RF Coax to HDMI DVI Demodulator TV Tuner for PAL B/G System Used in Europe Asia Middle East

  • PAL B/G RF coax demodulator for converting the foreign PAL B/G type RF coax cable TV signals into either 1080p HDMI or DVI output at 1920x1080 pixels.....
  • Premium external TV tuner module for MATV/SMATV systems used in campus, classrooms, hotels, hospitals, sports bars or restaurants. Full-frequency PAL....
  • External add-on TV tuner module for LCD TV, HD monitor/projector without coax inputs. Advanced HD video processor with digital comb filter for smooth....
  • Great RF coax to HDMI audio decoder for streamline setup with new home A/V receiver or home theater system. Easy operation control via IR remote....
  • Digital LED screen for TV channel display on the front panel of the module to show users the TV channel selected. Automatic video/audio gain control....
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LoadHandler Truck Bed Unloader - LH3000 - Fits Full Size Trucks

  • Very small size, length, width and height are 17*11*3.6mm.
  • The maximum output current can reach 1.8A, when the output current is 1.5A, the output voltage is 3V.
  • Switching frequency: 1.5 MHz (highest), typically 1 MHz.
  • When using this module with an inductive load, please pay attention to the protection of the current in the rear stage. For example, when using a steering gear or a motor, a large ripple may be generated, which may affect the chips in the rear stage circuit. You can add Zener and capacitor for protection.
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