The Arduino WTV020-SD MP3 Module is a voice recording module with 1GB SD Card storage capacity. You can upload WAV and AD4 format files that conform to FAT formatting. It supports 6KHz to 32KHz, being 36KHz for AD4 files and 6-16KHz for voice sampling rate (Audio Sampling).

A 1kohms Ntc Thermistor.

This is the Mini Reed Magnetic Sensor Module for Arduino! Reed switches are driven by magnets and are used in Mechanical Systems as Proximity Sensors.

A 33kohms Ntc Thermistor.

Learn about the capacity of your battery whenever you want with this Lithium Battery Capacity Indicator Module!

This is the Magnetic Door Switch Set, a small reed switch assembly specifically designed to alert you when doors, drawers, or any other aperture opens.

Load Cell - 50Kg

This Shuck Socket it is easy to use and to install.

Voltage Sensor Module.

This is the FeatherWing Adalogger: it adds a real-time clock with battery and micro SD card storage to any Feather mainboard. Using the Headers, you can connect a FeatherWing to the top of your board and let the board fly!

The HC-12 433MHz Transceiver is a wireless communication Module, which is based on the RF SI4463 chip, has a built-in microcontroller and can be configured by AT commands, the maximum output power is 100mW (20dBm) and the receiver sensitivity differs from: 117dBm to -100dBm, depending on the transmission speed. Accepts 3.2V - 5.5V and can be used with 3.3V and 5V UART voltage devices.

Digital Push Button (Green)

SW-420 Motion and Vibration Sensor Module.

Can be used to monitor the heart rate of the patient and athlete. The result can be displayed on a screen via the serial port and can be saved for analysis.

This package includes a Sensor of Level of Water and a Sensor of Humidity from Solo. If the plates have water covering the sensor components, an analog value will be available on the "SIG" connection. The Sensor of Level of Water can detect up to 4cm of water. This way, you can check if your aquarium, or your pet's water bowl, still has enough water. You can use the Sensor of Moisture of the Soil to check your plant's soil or growing environment, for example.

Gravity: IO Expansion Shield for Arduino V7.1

The 5-Channel Infrared Detector Sensor Module is designed to optimize robotics and electronics projects.

FemtoBuck LED Driver - SparkFun

ITeaduino Tiny Digispark

An Educational Kit with Arduino and about 30 Modules and Components, ideal for an introduction to electronics.

The 8 Environment Sensors Kit, M5Stack Env Kit, includes the 8 Earth, Angle, Pir, Hub, Light, Rgb, Ir and Env Sensors.

SparkFun OpenLog

SparkFun OpenScale

MP3 Player Shield - SparkFun

A Starter Kit Educational DIY Smart Home with the Arduino UNO R3, in a Component Box with a Protective Cover, with a Sensor of PIR Movements, a Bluetooth V4.0 Module, a Water Sensor, a Relay Module, a Humidity Sensor, an LCD1602 Display, even a Screwdriver, a Set that in total consists of about 110 pieces.