whadda  (328 offers of 2,618,038 product items)

The 16×2 LCD and keypad shield for Arduino Uno, Mega, Diecimila, Duemilanove and Freeduino boards.

CM2302 is a temperature and humidity composite sensor. It uses dedicated digital module acquisition technology and temperature and humidity sensing technology to ensure high reliability and excelle...

The E-Lock is an electronic combination lock that is controlled by your mobile phone. The E-Lock picks up, using the onboard microphone, the DTMF tones generated when the keypad of a mobile phone i...

This NFC/RFID controller shield is based on the PN532 chip and can be used for field communication close to 13.56 MHz. This shield comes with an onboard antenna. It is compatible with SPI, IIC, UAR...

This product is a replacement of: MK125

This sensor shield is a low-cost board that allows you to connect a range of sensors and external devices to your Arduino using easy-to-attach jumper cables.

This product is a replacement of: K8035,K2574

This set includes a soldering iron, tools, electronic parts and the necessary printed circuit boards to complete two minikits. An ideal introduction to soldering. Comes complete with a handy storag...

This interface board has 5 digital input channels and 8 digital output channels. In addition, there are 2 analogue inputs and 2 analogue outputs with 8 bit resolution. The number of inputs/outputs ...

This Joystick module provides X and Y axis control for your microcontroller projects. It also includes a “push down” microswitch. This product is a replacement of: VMA315

8 LEDs. Different LED running effects are selectable (PROG push button). Adjustable effect speed (SPEED potentiometer). Push button for power stand-by (OFF push button). This product is a replaceme...

This module based on Nordic nRF24L01, highly integrated, ultra low power (ULP) 2Mbps RF transceiver for the 2.4GHz ISM (Industrial, Scientific and Medical) band. Nordic nRF24L01+ integrates a compl...

Helps making difficult YES or NO decisions! Simply push the button to make the YES and NO LEDs start flashing. The flashing speed gradually decreases and finally one LED will remain lit. This produ...

Take your party scene to the next level thanks to this 3 channel RGB LED light organ solder kit! Once soldered and assembled, this kit will enable you to let the LEDs of a 12V or 24V RGB LED strip ...

Manufacturer: VELLEMAN Power supply: battery CR2032 3V x1 Type of circuit: do-it-yourself kit Kind of circuit: WHADDA watch Number of diodes: 24 Prototyping boards features: Arduino based;ATMega328...