Nayak Enterprises

 Robo Ocean TTP223 Capacitive Touch Sensor Module offers a simple and responsive touch interface for digital input in DIY electronics and microcontroller projects. It replaces traditional push buttons with a non-mechanical, capacitive touch surface

This TTP223 capacitive touch sensor module offers a modern alternative to traditional push buttons. It detects touch input through non-metallic surfaces and is ideal for interactive electronics and DIY projects

This HC-SR04-Ultrasonic Range Finder is a very popular sensor that is found in many applications where it requires measuring distance and detecting objects.

The module has two eyes like projects in the front which forms the Ultrasonic transmitter and Receiver.  The HC-SR04 ultrasonic sensor uses sonar to determine the distance to an object like bats or dolphins do.

This Ultrasonic Sensor module is a transmitter, a receiver, and a control circuit in one single pack!! It has very handy and compact construction. It offers excellent range accuracy and stable readings in an easy-to-use package. Its operation is not affected by sunlight or black material like Sharp rangefinders are (although acoustically soft materials like cloth can be difficult to detect).

The Trigger and the Echo pins are the I/O pins of this module and hence they can be connected to the I/O pins of the microcontroller/Arduino. When the receiver detects the return wave the Echo pin goes high for a particular amount of time which will be equal to the time taken for the wave to return back to the sensor.

Ultrasonic Ranging Module HC-SR04 provides 2cm-400cm non-contact distance sensing capabilities, Ranging accuracy up to 3mm.

Robo Ocean XL4005 5 A Adjustable Step‑Down DC‑DC Buck Converter – Short Description

High-efficiency switching regulator module based on the XL4005 IC, offering robust adjustable power conversion:

• Input Voltage: 5–32 V DC

• Output Voltage: 0.8–30 V (adjustable via 25‑turn potentiometer)

Robo Ocean / QIACHIP 433 MHz RF Module with MOSFET + 2‑Button White Remote – Short Description

• Wireless Pair: Includes a 433 MHz transmitter with a compact white remote (2 buttons: ON/OFF) and an RF receiver module featuring an integrated MOSFET output for direct drive of loads up to ~2 A

• Standard USB‑A to USB‑B connectors – exactly what the Arduino Uno, Mega, or similar boards require