whadda  (348 offers of 2,479,902 product items)

This 4-channel relay interface board can control various appliances and other equipments with high current. It can be controlled directly by any micro-controller.

This beautifully designed solder kit will sound like a real-life cicada once it’s dark! The entire kit consists out of three parts: the body and two wings. This way, the cicada has an extra dimensi...

This cute gadget can measure the humidity of your plant’s soil so you’ll always know when to give it more or less water! The panda shaped PCB has gold plated contact points or probes that can measu...

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 ...

Play the all-time favourite and addictive tennis game. Each player has his/her own bat with rotary potentiometer for ultra fast bat movement This product is a replacement of: MK191,MK121NTSC,MK121PAL

This breakout board allows you to connect a digital system (like a 5 V microcontroller) to a high-voltage or noisy system. It uses the TLP281 opto-isolator IC to electrically isolate your controlle...

Suited for different applications (e.g. model construction) and also educational. Adjustable flashing speed with two potentiometers. This product is a replacement of: MK102

This flat cable can easily be stripped apart into a single (or multiple) jumper wires.

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.

This flat cable can easily be stripped apart into a single (or multiple) jumper wires.

This kit allows you to control up to 10 devices using only 2 wires at a long distance. Microprocessor controlled. Inputs can be push-buttons, switches or open collector outputs from another device....

A small and versatile motor and driver set. This 5 VDC stepper motor controlled by the ULN2003 driver can be used with any Arduino® or compatible boards via jumper leads. Four-phase LED indicates t...

How does it work? Each partner holds one end of the heart pcb and holds hands. Your love level is indicated by 10 flashing LEDs and a buzzing noise. The more LEDs flash and the faster the buzzer so...

Just 4 LEDs and 4 push buttons provide hours of fun. The objective of the game is to repeat a randomly generated pattern. The pattern is played both visually and audible or visually only (selectabl...

1-2-3 is a game of logic that pits you against the machine. The game’s “logical thinking” is hardwired without using a microcontroller. It’s all diodes, transistors and LEDs. Easy to play. Not so e...