ReviewsFrequency Counter Using Arduino

AITRIP 3pcs Multi-Function Shield ProtoShield Multi-Functional Expansion Board Sensor Shield Module with Four Digital Display Compatible with Arduino

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..

NRF24L01 is a single chip radio transceiver for 2.4 - 2.5 GHz ISM band, low operating voltage : 1.9 ~ 3.6V low voltage operation..
Built-in hardware CRC error detection, Multipoint communication address control, built-in 2.4Ghz antenna, add wireless capability to your projects..
125 Communications channels frequency points, multi-point communication and frequency hopping to meet the communication needs..
Applications: wireless peripherals, remote control systems such as RC vehicles and consumer remote electronics, wireless voice transmission such as VoIP, wireless sensor networks, wireless networks, home and commercial automation. Compatible with Arduino and Raspberry Pi..
Maximum operating speeds up to 2Mbps, GFSK modulation efficiency, Anti-interference ability, Particularly suitable for industrial control applications, for easy implementation into designs without additional hardware..

Two processors that can run tasks in parallel with both cores communicating with one another. Each core can execute Arduino, mbedOS, micropython, and TensorFlow Lite code..
Comes in the Arduino MKR form factor but includes two extra 80-pin high density connectors. Extend your Portenta H7 to physical interfaces like Ethernet connectors, CAN bus peripherals, extra GPIO pins, SD card, etc..
Onboard WiFi and Bluetooth connectivity up to 65 Mbps transfer rate (using an external antenna)..
Perfect for high-end industrial machinery, laboratory equipment, computer vision, PLCs, robotics controllers, or even dedicated stationary computers..
Main features: industrial temperature rates, 8MB SDRAM, 16MB NOR Flash, DisplayPort output, USBC connector, cryptochip for secure data transactions..

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)..
The mega 2560 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..
With this Ethernet Shield, for Arduino board can be used to connect to internet. It can be used as server or client. Directly plug puzzle board, no soldering required..
This Ethernet Shield is directly compatible with Arduino official Ethernet Library. It adds a micro-SD card slot, which can be used to store files for serving over the network..

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The first and only over the counter treatment for overactive bladder.
Provides continuous relief of overactive bladder for four days and nights with only one patch.
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The First and only over the counter treatment for Overactive Bladder.

Clear prints on the female header connector, more precise and easier to use the wire..
The ELEGOO UNO R3 BOARD now uses an 16U2 instead of the ATMega8U2 chip. Faster transfer rates and more memory..
Control using ATMEL ATMEGA+328P chip(the same with Arduino UNO R3).
100% compatible with the Arduino IDE and RoHS Compliant.
We have always cared about the customer experience and improve the product function details..