Top Frequency Counter Using Arduino

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.

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..

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..

【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 ....

（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.

Tumbller is a newly design for Arduino project of robotic car kit which has multiple fascinating functions like IR control, auto-follow, obstacle....
Tumbller comes with a well-designed tutorial with illustrations, which shows you how to assemble the kit step by step and how to play with all the....
Arduino-Compatible: You can modify the default codes and upload your own program using Arduino IDE and work with the reserved pins to add more....
STEM kit for everyone: Tumbller is easy to assemble and suitable for kids to have some hands-on experiences and learn basic programming knowledge.....

4 LED lights (LED indicator to know the importance of doing in the actual project, with this indicator can work directly with the program status indicators for easy debugging..
AITRIP 3pcs Multi-Function Shield ProtoShield Multi-Functional Expansion Board Sensor Shield Module with Four Digital Display Compatible with Arduino.
Four digital (using 74HC595 driver provincial IO learning SPI), you can do digital display test (can display temperature, voltage, counter value, etc.)..
Expansion board directly connected with LD3320 non-specific voice recognition module, you can achieve voice control..
Expansion board directly with the SG90, MG945 MG995 and other steering gear connected to achieve the robot and other complex actions..
Expansion board directly with the SYN6288 free voice module docking,it can achieve voice broadcast function..

Great influence on the antenna module reception, preferably connected to the 1/4 wavelength of the antenna, typically 50 ohm single conductor. The....
Wireless Transmitter Modules allow your Arduino to wirelessly comunicate with other arduinos, or with radio frequency (RF) controlled devices that....
Antenna position has also affected the reception of the module, the installation, the antenna as possible straight away from the shield, high....
Frequency used to receive, decode and oscillation resistor should match with the transmitter..
Application:Usually used for remote control systems, such as Remote control rolling gates, smart car, smart home, etc..

Controller board compatible with Arduino UNO R3..
The board compatible with Arduino ATMEGA16U2 chip, Faster transfer rates and more memory.
Control using chip(compatible with UNO 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.

Product Type: Crystal Oscillator Frequency Counter.
Crystal Test Range: about 4MHz-48MHz(not include 32.768KHZ).
PCB Size: 80*53*2mm. Net weight : about 39g.
Package Include: 1 set Frequency Counter Tester Parts( Attention: the products are in parts , the buyers need to assemble them).

This is a commonly used DC motor drive module, using a small current 293 chip DC motor driver chip..
Using this chip you can use DC motors and power supplies of up to 10 Volts, that some pretty big motors and the chip can supply a maximum current of 600mA per channel..
Tested compatible for Arduino Mega, Diecimila & Duemilanove..
2 interface for 5V Servo connected to the Arduino's high-resolution dedicated timer - no jitter..
Multi-function, easy to operate, a strong driver library support and feature updates..