Velleman Kits & Projects

A simple MOSFET switch/driver. 3-5Vdc input and max ouput of 0-24Vdc

This breadboard 3.3V / 5V power supply module fits the power rails on most breadboards. It also features a mini USB power port to supply power to external devices.

This Arduino add-allows you to use the Arduino as a DMX master device (transmitter). This board is a simple circuit based around a driver chip (MAX-485 or SN 75176). With XLR 3 pin male DMX output connector. Pin1 = Signal Common, Pin2 = Data-, Pin3 = Data+ The board converts the Arduino signal voltage according to DMX (RS485). Impedance is 100 Ohm.

This laser module produces a small intense light beam (650 nm, red).

This 8-channel relay interface board can control various appliances and other equipments with high current. It can be controlled directly by any micro-controller.

The HC-SR05 ultrasonic distance sensor provides an easy way for your projects to measure distances up to 4.5 m.

High sensitivity sound detection module with 2 outputs. AO - analog output, real-time output voltage signal of the microphone. DO - the digital output depends on the sound intensity and the threshold that has been set.

The DHT11 temperature and humidity sensor features a calibrated digital signal output with the temperature and humidity sensor complex. Its technology ensures the high reliability and excellent long-term stability. A high-performance 8-bit micro-controller is connected. This sensor includes a resistive element and a sense of wet NTC temperature measuring devices. It has excellent quality, fast response, anti-interference ability and high cost performance advantages.

The device includes an on-chip Hall voltage generator for magnetic sensing, an amplifier that amplifies the Hall voltage, a Schmitt trigger to provide switching hysteresis for noise rejection, and an open-collector output.

Whadda WPSE314 PIR sensors allow to sense motion, almost always used to detect whether a human has moved in or out of the sensor's range.