Sparkfun

US$79.65

This 200 pulse per rotation rotary encoder outputs gray code which you can interpret using a microcontroller and find out which direction the shaft is turning and by how much. This allows you to add feedback to motor control systems. Encoders of this kind are often used in balancing robots and dead reckoning navigation but it could also be used as a very precise input knob.

In stock
+
Add to wish list

US$2.73
When the device is exposed to a magnetic field, the two ferrous materials inside the switch pull together and the switch closes. When the magnetic field is removed, the reeds separate and the switch opens. This makes for a great non-contact switch. This switch can carry up to 1A.
Delivery within 2-3 weeks
+
Add to wish list

US$2.73
This is a very useful panel-mount locking button/switch. Press it once for 'on', once again for 'off'. It is a SPST N.O. with 7/16" threading. This button has a nice 'click' when you press it.
In stock
+
Add to wish list

US$1.33
This is your standard fridge magnet, perfect for holding up quite a bit of weight. Grade C8. Magnetization is throughout the thickness of the magnet. Dimensions: 0.709x0.197". Features: BrMax: 3850 Gauss. Pull Force: 1.5 lbs.
In stock
+
Add to wish list

US$1.33
This is a 5mm clear infrared LED. These devices operate between 840-850nm and work well for generic IR systems including remote control and touch-less object sensing.
In stock
+
Add to wish list

US$1.33
This is a 5mm clear infrared LED. These devices operate between 940-950nm and work well for generic IR systems including remote control and touch-less object sensing.
In stock
+
Add to wish list

US$4.13

These are high quality Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, and/or high current devices. This relay’s coil is rated up to 12V, with a minimum switching voltage of 5V. The contacts are rated up to 5A (@250VAC, 30VDC).

In stock
+
Add to wish list

US$4.44
It has a common anode. The display features one decimal point per digit, and individually controllable apostrophe and colon points.
In stock
+
Add to wish list

US$4.13
This is a five way selectable switch often found as the pickup selector on electric guitars. The lever clicks through five different positions so you can select from three different inputs and a combination thereof.
In stock
+
Add to wish list

US$2.99
This pack of female headers includes two 6-pin headers and two 8-pin headers. This is similar to the header kit that comes with Arduino shields except that the pins are shorter so they don't stack. These are useful for Arduino compatible boards that don't come with headers already installed (like the Arduino Pro).
In stock
+
Add to wish list

US$55.93
This is a combination of  3-axis gyroscope and a 3-axis accelerometer on the same onboard Digital Motion Processor™ (DMP™) capable of processing complex 9-axis MotionFusion algorithms.
In stock
+
Add to wish list

US$104.14

This GPS receiver is a complete GPS smart antenna receiver, that includes an embedded antenna and GPS receiver circuits. This low-cost unit outputs an astounding amount of position information 5 times a second. The receiver is based on the proven technology found in LOCOSYS 66 channel GPS SMD type receivers that use MediaTek chip solution.

In stock
+
Add to wish list

US$7.62

This is a 1.75 inch communication cable that connects the EM406 and the EM401.

In stock
+
Add to wish list

US$4.13

This is a 1 foot communication cable extension that mates with the EM406 and EM401.

In stock
+
Add to wish list

US$12.53

This small servo with a standard 3 pin power and control cable and mounting hardware is similar in size and specifications to the Hitec HS-55 model.

In stock
+
Add to wish list

US$4.13

This is a 12 inch servo cable female to female connection with removable plastic shrouds for both ends. This comes in very handy when your servo is further away from the controller than the wire on the servo allows.

In stock
+
Add to wish list

US$4.13

This is a 12 inch servo cable female to female connection with removable plastic shrouds for both ends. This comes in very handy when your servo is further away from the controller than the wire on the servo allows.

In stock
+
Add to wish list

US$29.99

This is a great way to induce linear motion for pushing, pulling or controlling switches and levers. According to the datasheet this solenoid is rated for 36V but they work like a charm at 12V.

In stock
+
Add to wish list

US$11.55
This is a mono audio amplifier that can drive an 8 ohm speaker up to 1.4 watts of power for your audio projects. This tiny audio amplifier is based on the Texas Instruments TPA2005D1. Its efficient class-D operation means low heat and long battery life.
In stock
+
Add to wish list

US$79.75

This rotary encoder has a 1024 pulse per rotation rotary encoder outputs gray code which you can interpret using a microcontroller and find out which direction the shaft is turning and by how much. This allows you to add feedback to motor control systems.

Delivery within 2-3 weeks
+
Add to wish list

US$10.69

This pan/tilt bracket consists of two brackets and all the hardware you need to attach them to make a pan/tilt mechanism using two servo motors.

In stock
+
Add to wish list

US$1.35
We really like the solid locking feeling and high current rating on these small connectors. This connector mates with our 3-pin jumper wire, and may be useful for interfacing with the popular Sharp infrared proximity sensors or our serial LCDs.
In stock
+
Add to wish list

US$2.73

This is a 12 inch two wire cable with 2 pin JST RE connector on both ends.

In stock
+
Add to wish list

US$2.09

This is a 4 inch two wire cable with 2 pin JST RE connector on both ends.

In stock
+
Add to wish list

US$2.12

This is a 6 inch two wire cable with 2 pin JST RE connector on both ends.

In stock
+
Add to wish list

US$2.73

This is a 12 inch three wire cable with 3 pin JST RE connector on both ends.

In stock
+
Add to wish list

US$2.03

This is a 4 inch three wire cable with 3 pin JST RE connector on both ends.

In stock
+
Add to wish list

US$2.12

This is a 6 inch three wire cable with 3 pin JST RE connector on both ends.

In stock
+
Add to wish list

US$2.73

This is a 12 inch four wire cable with 4 pin JST RE connector on both ends.

In stock
+
Add to wish list

US$2.03

This is a 4 inch four wire cable with 4 pin JST RE connector on both ends.

In stock
+
Add to wish list

US$2.12

This is a 6 inch four wire cable with 4 pin JST RE connector on both ends.

In stock
+
Add to wish list

US$2.73

This is a 12 inch five wire cable with 5 pin JST RE connector on both ends.

In stock
+
Add to wish list