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

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.

This Disk Load Cell (sometimes called the Strain Gauge) can translate up to 200kg of Pressure(Force) into a Electrical Signal. Each Load Cell is capable of measuring the electrical resistance that changes in response and proportional to the voltage (eg pressure or force) applied to the disk. With this gauge, you'll be able to tell how heavy an object is, if an object's weight changes over time, or if you simply need to feel the presence of an object by measuring the tension or load applied to a surface.

A Module with GPRS Antenna, operation Wireless and SIM Card.

Now the ESP8266 D1 Mini v3 is no longer alone! If you like WiFi communication, especially with ESP8266 chips, you can't miss this kit that includes several modules such as sensors, button, LED, Display, Relay, protoboard, among others. And you couldn't miss the respective ESP8266 D1 Mini v3 to be able to program in an Arduino environment and develop your wireless and IoT projects.

MP3 Player Shield - SparkFun

SparkFun OpenScale

XBee 6.3mW Wire Antenna - Series 2C ZigBee Mesh

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.

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