Let's Make Robots!
Price: $3.95 USD
The 24LC128 is a128K Bits x 8 I2C serial EEPOM device. Read more
Price: $3.95 USD
The 24LC16B is a16K Bits x 8 I2C serial EEPOM device. Read more
Price: $3.95 USD
Handy for extending the "brain space" of any microcontroller! Read more
Price: $2.95 USD
The 25LC640 SPI Serial EEPROM is a 8-bit x 8192 words SPI EEPROM. Read more
Price: $0.95 USD

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The 74HC595 is very useful in expanding how many pins a microcontroller can write to. Use 3 to write to 8! Read more
Price: $1 USD
The 74HC240 octal (8 channel) inverting buffer has lower output drive current than the AC version, and is very similar to the HCT version except in that it switches … Read more
Price: $1.35 USD
This 74HCT240 octal (8 channel) inverter chip is more power efficient than the AC series, but can't drive as heavy loads. This makes it more suitable for solar BEAM … Read more
Price: $1 USD
The 74AC245 is an octal (8 channel) buffer chip that simply strengthens the current output of a signal. Great for small-motor driving! Read more
Price: $0.75 USD
The quad bipolar switch is useful for switching and redirecting two-direction signal paths. Read more
Price: $0.5 USD
The LM339 is very similar to the LM324 but with open collector outputs. Read more
Price: $0.5 USD
The LM393 is a dual-comparitor chip that is the heart of the popular "Sandwich bot" project in the book "Robot Building for Beginners" Read more
Price: $1.5 USD
Low voltage dropout regulator. Read more
Price: $3.75 USD
A 28 pin 8 bit microcontroller in a DIP package as used on the Sumovore Atmel Brainboard add-on. Read more
Price: $0.75 USD
Fairchild 555 Timer IC Read more
Price: $1.75 USD
The Panasonic 1381x voltage trigger detects preset voltage levels depending on the flavour you select. These are the heart of many solarengine circuits. Read more
Price: $3.75 USD
This very configurable voltage monitor chip offers more flexibility than the 1381 series of detectors, at more complexity of setup. Read more
Price: $0.75 USD
This Hex inverter chip with Schmidt trigger inputs is often used for Microcore-style circuits. Read more
Price: $0.75 USD
The 74HC86 is a high-speed Si-gate CMOS device that provides the EXCLUSIVE-OR function. We use this chip in our new ScoutWalker III kit. Read more
Price: $0.75 USD
1-of-4 decoder chip, good for twisting into motor h-bridge controllers or drivers Read more
Price: $1 USD
The 74AC240 is an octal (8-channel) inverter buffer chip, or better known as The Bicore IC. Read more