A Black woman's manicured hand holds a round microcontroller with lit up LEDs.
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Circuit Playground Express is the next step towards a perfect introduction to electronics and programming. We've taken the original Circuit Playground Classic and made it even better! Not only did we pack even more sensors in, we also made it even easier to...
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Video of a woman's hand rising above a blue ultrasonic sonar distance sensor plugged into a half-size breadboard. An OLED screen displays the rising distance between the woman's hand and the sensor.
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If you're like me, you've dreamed of being a dolphin - smoothly gliding through the water. Using your echo-location abilities to detect tasty fish treats. Until genetic modifications catches up with our desires, we'll just have to make do with these handy HC-SR04 Ultrasonic...
$3.95 each
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Front angled shot of 3 x AAA battery holder with on-off switch and 2-pin JST PH connector.
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This battery holder connects 3 AAA batteries together in series for powering all kinds of projects. We spec'd these out because the box is slim, and 3 AAA's add up to about 3.3-4.5V, a very similar range to Lithium Ion/polymer (Li-Ion) batteries and have an on-off switch. That makes...
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Mini Metal Speaker with Wires
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Listen up! This tiny 1" diameter speaker cone is the perfect addition to any small audio project where you need an 8 Ω impedance and will be using 0.5W or less of power. We particularly like this cone as it's very simple and its metal body is extremely lightweight.
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Angled Shot of the 2-pin JST SM Plug + Receptacle Cable Set.
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These 2-wire cables are 16cm long and come as a set.  One side has a 2-pin JST SM type connector plug on the end.  The other side has a matching 2-pin JST SM type receptacle connector.  They are good for whenever you have 2 wires you want to be able to plug and unplug....
$0.75 each
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