Answers to: Arduino example void | Best choice

  • KEYESTUDIO Pm2.5 Dust Sensor Pm2.5 Air Particle Monitor for Arduino Mega 2560 Controller R3 Nano Micro Pro Mini
    Dust Sensor based on Sharp optics works well in detecting very delicate particle, like cigarette smoke, is a commonly used system of air purifier Contains IR LED and photoeletric transistor Arranging them with across corners can detect the reflected light of dust in the air It has a ultra-low power consumption(Max at 20mA, Typical at 11mA ), and can be equipped with sensors up to 7VDC How to use: search for "keyestudio wiki ks0196" in Google Chrome to get the wiki online tutorial for this product.
  • Aideepen YX5300 UART Control Serial MP3 Music Player Module for Arduino/AVR/ARM/PIC
    It's an add on board that needs an arduino or some other micro controller to play thru Support file format:MP3/WAV Support Micro SD card, Micro SDHC Card Support sampling frequency (kHz):8 / 11.025 / 12 / 16 / 22.05 / 24 / 32 / 44.1 / 48 UART TTL serial control playback mode, baud rate is 9600bps. 30 class adjustable volume
  • Makerfire 10pcs Arduino NRF24L01+ 2.4GHz Wireless RF Transceiver Module New
    Brand New, 90 Days Warranty Model: NRF24L01
  • 5 Pieces I2C Display Module 0.91 Inch I2C SSD1306 OLED Display Module I2C OLED Screen Driver DC 3.3V~5V (White Display Color)
    What will you get: there are 5 pieces OLED display module with classic display color, self-illuminated and no need backlight Power-saving display: the I2C oled display performs better than the traditional LCD display and with lower consumption the IIC (I2C communications) simplifies connections; Please note that these I2C OLED display module comes without pin headers More details: use compatible with Arduino, ESP8266, ESP32, STM32, etc.; 3.35v Power; Operating temperature: -40 - 85 ℃; Resolution: 128 x 32 Good compatibility: this i2c oled display module is compatible with Raspberry Pi 4B/3B+/3B/2B/Zero, compatible with Arduino, also compatible with ESP8266, ESP32, STM32, etc. Product manual: as shown in the instructions
    16.99 $
  • Taiss / 5Pcs KY-040 Rotary Encoder Module with 15×16.5 mm with Knobs Cap for Arduino
    Working voltage: 5V; One round number of pulse: 20 The Material of Knob Cap: aluminium alloy;The Specification of Knob Cap: diameter: 15mm/ 0.59in; height: 16.5mm/ 0.65in The rotary encoder can count the number of pulse output during rotation in the positive direction and reverse direction through the rotation and this rotation counts are not limited With the key on the rotary encoder, you can reset to the initial state, that is, counting from 0 Package content: 5pcs x Rotary Encoder Module + 5pcs black Knob .
    8.99 $
  • Comidox 4PCS MCP4725 Breakout Module I2C DAC 12Bit Development Board 2.7V to 5.5V Supply with EEPROM for Arduino Raspberry Pi
    The MCP4725 is a single-channel 12-bit buffered voltage output DAC with non-volatile memory (EEPROM) that allows you to store configuration register bits (2 bits) and DAC input data (12 bits) to non-volatile EEPROM (14-bit) In memory. The DAC can be configured for normal mode or power-saving shutdown mode by setting the configuration register bits. The DAC allows you to send analog signals, such as sine waves, from a digital source such as the I2C interface on an Arduino microcontroller. Digital to analog converters are ideal for sound generation, musical instruments and many other creative projects. This version of the CJMCU-MCP4725 Breakout solves some of the board's problems, including IC packages, I2C pinouts, changing the overall board size to better suit your project, and some minor adjustments. The board breaks down each pin you need to access and uses the MCP4725 (including GND and signal OUT pins) to connect to the oscilloscope or any other device you need to connect to the board. There are also SCL, SDA, VCC and another GND for the basic I2C pinout. The device can be used with a 2-wire I2C-compatible serial interface and is powered by a single supply from 2.7V to 5.5V. If you want more than one MCP4725 on the bus, you can disable the pull-up resistors on this board.
    7.49 $
  • HiLetgo 2pcs JSN-SR04T Integrated Ultrasonic Module Distance Measuring Transducer Sensor Waterproof for Arduino
    With a waterproof sealed emitter. This sensor is suitable for outdoor applications such as car reversing sensors, security alarms, industrial inspection, etc. Integrated with wire enclosed waterproof probe, suitable for wet, harsh measurement occasions. Please note that the device is waterproof, but it couldn't work underwater. Working voltage:DC 5V, Static current:5mA, Total current work: 30mA. Working range: 25cm-4M, Working frequency: 40KHZ, Detecting angle: 70 degree. The module has a variety of modes that can be modified manually, suitable for testing and teaching experiments in different occasions. Application: Horizontal distance messurement,Obstacle avoidance, automatic control, Traffic control, Security, industrial control.
    16.49 $
  • Arduino MKR WiFi 1010 [ABX00023]
    MKR 1010 simplifies the prototyping of WiFi-based IoT applications, easily connected and configured to other Arduino products. You do not need to be a network expert! The hybrid WiFi / BLE connectivity module has a low power consumption mode, improving the life of your batteries. Ideal for: Entry point to and professional IoT, building wireless sensor networks in minutes, remotely operated devices. Cloud features: the board can connect to any kind of existing WiFi network, or use it to create your own Arduino Access Point. It is also possible to connect your board to different Cloud services, including Arduino IoT cloud! Simply to power with a USB cable or external Li-Po 3.7V battery. Recharge the battery through the USB port.
    32.10 $
  • Gowoops Micro Board for Arduino, Leonardo Mini Controller 5V 16 MHz ATmega32u4 Module
    Micro Board for Arduino is a mini controller based on Atmega32U4 Micro Board for Arduino has 20 input output pins(7 PWM output and 12 analog input) Due to super small zise, Micro Board for Arduino is intergrated to mini breadboard very easily Owning to Atemga32U4,Micro Board for Arduino can realize USB communications and control as the same as Leonard board for Arduino The characteristics of ecological USB supporting in Atmega32u4 can also make Micro Board for Arduino to simulate mouse and keyboard, greatly improving the application.
  • Longruner 3pcs Wireless Transceiver Module 2.4G 1100m NRF24L01+PA+LNA in Antistatic Foam for ArduinoIDE Compatible with Antenna LKY67
    The nRF24L01+ is a 2.4GHz ISM band transceiver for arduinoIDE. The module has 5V tolerant inputs which allows for direct connection of SPI pins to the (compatible with) ArduinoIDE. Range: 800+ meters line of sight, Weight: 13.28 g (0.468 oz). Auto-acknowledge and auto-retransmit abilities. Support up to six channels of data reception.