The NodeMCU development board based on ESP32, features WiFi+Bluetooth connectivity, onboard CH340 and keys. What's more, all the I/O pins of ESP32-S module are accessible via the extension headers. The NodeMCU ESP-32S is one of the development board created by NodeMCU to evaluate the ESP-WROOM-32 module. It is based on the ESP32 microcontroller that boasts Wifi, Bluetooth, Ethernet and Low Power support all in a single chip. NodeMCU uses Lua Scripting language and is an open source Internet of Things (IoT) platform.

Get Details: https://www.campuscomponent.co....m/products/esp-32-no

This is the HC-SR04 ultrasonic distance sensor. This economical sensor provides 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm. Each HC-SR04 module includes an ultrasonic transmitter, a receiver and a control circuit. There are only four pins that you need to worry about on the HC-SR04: VCC (Power), Trig (Trigger), Echo (Receive), and GND (Ground). You will find this sensor very easy to set up and use for your next range-finding project. This sensor has additional control circuitry that can prevent inconsistent "bouncy" data depending on the application.

Get Details: https://www.campuscomponent.co....m/products/hc-se-793