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Best Frequency Counter Using Arduino

HiLetgo 5 Sets 433M Transmitter + Receiver Kit High Frequency Super Regenerative Transceiver Module for Burglar Alarm

  • Easy to use, nice range (using antenna on both), you can send strings (text) from one point to another. If you want to automate your house without....
  • Wireless Transmitter Modules allow your Arduino to wirelessly comunicate with other arduinos, or with radio frequency (RF) controlled devices that....
  • They work in pairs, meaning you need both a receiver and a transmitter to comunicate with each other.
  • Compatible with SparkFun’s 434MHz RF transmitter and RF receiver.
  • This Radio Transmitter & Receiver pair is perfectly matched to allow you to control items from a distance up to 500 feet wirelessly!.
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Adafruit ATWINC1500 WiFi Breakout

  • Good when you want a lower-power and lower-voltage setup.
  • Same core chip in the Arduino UNO/Duemilanove/Mini/etc.
  • 95% of Arduino projects will work out of the box.
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SunFounder Mega 2560 R3 ATmega2560-16AU Board Bundled with R3 Board and Ethernet Shield W5100 for Arduino

  • The mega 2560 R3 Board is 100% compatible with Arduino. Powered via the USB connection or with an external power supply. The power source is selected automatically..
  • The ATmega2560-16au has 256 KB of flash memory for storing code (of which 8 KB is used for the bootloader), 8 KB of SRAM and 4 KB of EEPROM (which can be read and written with the EEPROM library). Comes preburned with a bootloader that allows you to upload new code to it without the use of an external hardware programmer. It communicates using the original STK500 protocol (reference, C header files)..
  • This version is optimized in the original version, both to ensure consistent and compatible with the original, but also easy to use..
  • R3 board compatible with Arduino. The board for Arduino use ATMEGA16U2 chip, Faster transfer rates and more memory.R3 board control using r3 ATmega328P chip. Includes new pin configuration (SCL, SDA, IOREF).Clearly print on the female header connector, more precise and easier to use the wire..
  • With this Ethernet Shield, for Arduino board can be used to connect to internet. Can be used as server or client. Directly plug puzzle board, no soldering required. It is directly compatible with Arduino official Ethernet Library. It adds a micro-SD card slot, which can be ....
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ARCELI ESP-12E ESP8266 UART WiFi Wireless Shield Compatible with Arduino UNO R3

  • Standard pin interface to achieve full compatibility with the pitch Arduino Uno, Mega and so on. (Unless the standard size arduino, such as Nano, Mini).
  • 3.3V power supply using advanced chip (with the official expansion board power chip CC3000 same), so 3.3V Arduino board provided more accurate, so ESP8266 as official cc3000 chip work as normal, there is no gap..
  • It leads to a WiFi module power supply / service interface to facilitate developers to extend the power supply and maintenance..
  • Onboard ESP8266-12 stable industrial grade serial WiFi module, using an enhanced PCB antenna, signal better..
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OCESTORE Crystal Oscillator Tester Frequency Counter Tester Meter 1Hz-50MHz Cymometer Measurement Tester Module LED DIY Kit

  • 【OPTIMAL PERFORMANCE】OCESTORE premium upgrade Frequency Counter Tester Meter based on PICmicrocontroller that can measure frequency of 1 Hz to 50 MHz,designed to measure the oscillation frequency of the most crystal oscillators..
  • 【HIGH QUALITY】OCESTORE premium Frequency Counter Tester Meter is made of high quality material which can use for a long time.Programmable addition and subtraction frequency settings, used to measure radio transceivers and other equipment..
  • 【SUPER IMPORTATNT】with crystal oscillator measurement function and programmable addition and subtraction frequency settings, five-digit digital tube display, convenient and intuitive, all use in-line components, simple circuit, easy to make..
  • 【OPTIMAL RELIABILITY】Power supply : USB 5V or DC 5-12V.
  • Crystal Test Range: about 4MHz-48MHz.Automatic range conversion, no need for manual switching.
  • All in-line components, easy to install and debug..
  • 【PACKAGE & SERVICE】Package Include: 1 Pcs x Crystal Oscillator Frequency Counter .Any question Pls fell free to contact us, we will reply you within 24H.And we offer a 12 month warranty..
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FC-3000P Ham Radio CB Frequency Counter 27Mhz-3000Mhz - High Sensitivity with CTCCSS DCS Decoder for The VHF & UHF - CB Continuous Carrier Signal, Walkie-Talkies, DMR Radio Transceivers

  • ✔️ IDENTIFYING FREQUENCY - The frequency meter measures frequency parameters of the continuous carrier signal walkie-talkies , with signal strength indicator..
  • ✔️ PORTABLE FREQUENCY COUNTER - Counting continuous wave signal comes from Two-way Radio. VHF & UHF frequency measurement, useful for the CB amateur Ham Radio..
  • ✔️ FREQUENCY COUNTER METER RANGE - CB, HAm Radio, DMR frequency range 100Mhz-3000Mhz. Build-in DCS CTCSS Decoder Low PPM crystal time base used to achieve high accuracy measurement.
  • ✔️ EASY TO OPERATE - User friendly controlled with four buttons. The DMR radio frequency counter is compact and handy when needed..
  • ✔️ 100% MONEY BACK GUARANTEE 2 YEARS WARRANTY ensures this will quickly become your favorite no-risk purchase..
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Discover It - iProtect 3 Band RF Anti-Spy Counter Surveillance Radio Frequency Bug Detector - Detect Listening Devices, Hidden Cameras, GPS, WiFi, Bluetooth, GSM, 3G, 4G/LTE, 2.4, and 5.8Ghz Signals

  • "THE DISCOVER IT - iPROTECT DD1216 - 3 BAND RF ANTI-SPY COUNTER SURVEILLANCE RADIO FREQUENCY BUG DETECTOR HAS GIVEN ME PIECE OF MIND!" - Did you know that countless families, businessmen & women and corporations have relied upon the Discover It - iProtect 3 Band RF Anti-Spy Counter Surveillance Radio Frequency Bug Detector to ensure their MAXIMUM level of privacy and security? Get ready to experience your greatest level of personal privacy yet!.
  • THREE BANDS OF DETECTION - Did you know that the detection frequency range of the Discover It - iProtect 3 Band RF Anti-Spy Counter Surveillance Detector has been split into 3 parts, each displayed by a separate bargraph: "VHF/UHF 50-700 MHz", "Mobile and wireless 700 MHz – 3 GHz" and "Microwave and wireless 3-12 GHz". Allowing the operator to understand what type of signal is detected, to detect several signals simultaneously and to sustain the ability of detection near sources of interference.
  • HAVE AMAZING PROFESSIONAL 5 STAR RESULTS WITHOUT QUESTIONING THE DETECTION RESULTS - Do you want to have amazing 5 STAR detection results each and every time you scan your home, car, office & conference board room or hotel room? Its never been easier to sweep and detect hidden bugs, hidden cameras or malicious RF sign....
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SunFounder R3 BoardBundled with Mega 2560 R3 ATmega2560-16AU Board for Arduin

  • R3 board compatible with Arduino. The board for Arduino use ATMEGA16U2 chip, Faster transfer rates and more memory..
  • R3 board control using r3 ATmega328P chip. Includes new pin configuration (SCL, SDA, IOREF).Clearly print on the female header connector, more precise and easier to use the wire..
  • The mega 2560 R3 Board is 100% compatible with Arduino. Powered via the USB connection or with an external power supply. The power source is selected automatically..
  • The ATmega2560-16au has 256 KB of flash memory for storing code (of which 8 KB is used for the bootloader), 8 KB of SRAM and 4 KB of EEPROM (which can be read and written with the EEPROM library). Comes preburned with a bootloader that allows you to upload new code to it without the use of an external hardware programmer. It communicates using the original STK500 protocol (reference, C header files)..
  • This version is optimized in the original version, both to ensure consistent and compatible with the original, but also easy to use..
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Galaxy DX-939 Backlit 40ch Mobile CB Radio with TalkBack & Roger Beep

  • Star Lite faceplate makes all lettering glow in the dark.
  • Large, easy-to-read meter with scales for power output, modulation, SWR and incoming signal.
  • Five-digit frequency counter and two-digit channel display using large blue LEDs , variable power output control, variable talkback circuit with on/off switch.
  • Automatic SWR circuit with an SWR alert LED, Roger Beep circuit with on/off switch.
  • Variable dimmer control, frequency display on/off switch, 3-position tone switch for receive.
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Makeronics Microcontroller Board and RAB 7-in-1 Breadboard Holder with USB Cable Compatible with UNO R3 Board ATmega328P and Arduino IDE

  • RAB 7-in-1 breadboard holder is suitable for Arduino Uno, Mega2560 development breadboards,for Education kit or DIY project..
  • Control using ATMEL ATMEGA328P chip(the same with Arduino UNO R3).
  • 100% compatible with the Arduino IDE and RoHS Compliant.
  • Powered via the USB cable or power it with an AC-to-DC adapter or battery to..
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New Cornet ED88TPLUS5G EMF RF 5G TRI Field Detector by Safe Living Technologies Inc.

  • IMPROVED FREQUENCY COUNTER: The Frequency counter function has been extended to 4.2GHz which covers all the 5G network frequency bands including the 3.5GHz 5G C-band..
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KEYESTUDIO Multi-Purpose Shield V1 with Buzzer LED Temp Light IR Receiver for Arduino Controller R3 and MEGA2560

  • 【2 in 1 Robot Kit and Electronics Kit】-This tank robot car kit is compatible with Arduino and Mixly ((block programming platform) , ideal for Arduino beginners and professionals to learn robotics, electronics and programming.Teenagers or adults can learn coding from Scratch to Arduino after assembly and get a lot of fun of making..
  • 【Automatically Drive/Motion Control】-Keyestudio robot kit has many excellent functions, detecting, avoiding and following obstacles.
  • using 8X16 LED panel to display the movement status. You can also use infrared remote control and Bluetooth APP to control it (support iOS and Android).Have fun in the process of learning Arduino..
  • 【Simple Assembly】-With a detailed tutorial for assembling it，and all parts are named and organization. Four cartoon animal heads have been added to the kit so that you can install them on the ultrasound module,assemble with your child, it will be a wonderful experience!.
  • 【Project-Based Tutorials for Coding】-This programmable robot supports Arduino IDE.15 detailed online projects, from simple to complex,easy to learn coding, robotics and electronics through games. Stimulate your creativity through hands-on experience..
  • 【KEYESTUDIO Technical Support】About this ....
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AITRIP D1 Mini WiFi Dev Board,Mini NodeMcu Lua 4M Bytes WLAN WiFi Internet Development Board Base on ESP8266 ESP-12F for Arduino, 100% Compatible with WeMos D1 Mini (Pack of 6)

  • （pack of 6 ）This D1 mini module is a mini WIFI board based on ESP-8266EX..
  • Our D1 mini development board is 100% compatible with Arduino WeMos and can be programmed in Compatible with Arduino IDE..
  • Support OTA on line.Compatible withArduino compatibility. Using Compatible with Arduino IDE for programming..
  • This WLAN board contains 11 digital input / output pins, all pins have interrupt / pwm / I2C / 1-wire and a micro-USB connection..
  • 11 digital input / output pins, all pins with interrupt / PWM / I2C / support 1 line (except D0).
  • 1 analog input(3.2V max input). Micro USB connection.
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