cards & micros

This tiny audio amplifier is based on the Texas Instruments TPA2005D1. Its efficient class-D operation means low heat and long battery life. It ca...

This is a breakout board for the SP3485 RS-485 transceiver IC, which will convert a UART serial stream to RS-485. The SP3485 is a half-duplex tran...

This super small mono amplifier is surprisingly powerful - able to deliver up to 2.5 Watts into 4-8 ohm impedance speakers. Inside the miniature ch...

Listen up! This set of two 2.8" x 1.2" speakers are the perfect addition to any audio project where you need 4 ohm impedance and 3W or less of pow...

The seven band graphic equalizer IC is a CMOS chip that divides the audio spectrum into seven bands. 63Hz, 160Hz, 400Hz, 1kHz, 2.5kHz, 6.25kH...

That new Raspberry Pi® computer you just got has a row of 2x13 pin headers soldered on - those are the GPIO (general purpose input/output) pins an...

FEATURES: USB to serial cable three wires for Breadboard connection SERIAL output 3.3V voltage levels GND=BLUE, RX(INPUT)=GREEN, TX(O...

The ATtiny45 and 85 are a couple of really cool little MCUs but did you know you can program them in Arduino? That's right, now you can shrink you...

Here is a real time clock based on the DS3234 Real Time Clock IC. The DS3234 is a low-cost, extremely accurate SPI bus real-time clock with an int...

ALUMINUM-HEATSINK-20x20x6MM is a small (20x20x6)mm aluminum heatsink radiator specially made for A10/A20 BGA chips. During heavy computations like ...

Relays - 8 Isolated Inputs - 8 Power - Powered by standard USB bus Control interface - USB Input Voltage - 4.5v DC to 27v DC Relay current - Up to...

This is the newest revision and fixes issues with the last board. This breakout board pairs an SP3485 RS-485 transceiver with an FT232RL USB UART I...

Surface transducers give you the awesome power to turn almost any surface into a speaker. They're essentially just a speaker except instead of a co...

This is a breakout board for the Texas Instruments TXB0104 module. The TXB0104 is a 4-bit bidirectional voltage-level translator with automatic di...

This is a simple to use, USB to serial base unit for the Digi XBee line. This unit works with all XBee modules including the Series 1 and Series 2...

This incredibly small stereo amplifier is surprisingly powerful - able to deliver 2 x 3.7W channels into 3 ohm impedance speakers. Inside the minia...

The Photon is a tiny Wi-Fi development kit for creating connected projects and products for the Internet of Things. It's easy to use, it's powerfu...

Picaxe 08M2 is the smallest of Picaxe family. Has 6 I/Os. 3 I/Os can act as analog inputs. It can also play RTTL tunes using the "Tune Wizard" i...

Official microUSB Power Supply Unit for Raspberry Pi 3 Model B This Pi Foundation approved power supply unit (PSU) for the Pi 3, is available at...

The Raspberry Pi Model B+ is THE new favorite of development platforms, so the last thing that you'd want is for something bad to happen to it. Why...

This device is a programmer for AVR-based controllers, such as our Orangutan robot controllers and the 3pi robot. The programmer emulates an STK50...

Customers have asked us to carry basic perf-board, but we never liked the look of most basic perf: its always crummy quality, with pads that flake...

Bread Boards are excellent prototyping tools, in a very short time it is possible to build circuits, even complex ones, carry out tests and fine-t...

Not just a simple breakout board, this microSD adapter goes the extra mile - designed for ease of use. Onboard 5v->3v regulator provides 15...