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New products: D24V25Fx 2.5 A step-down regulators available in new voltages
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We just released 3.3 V, 6 V, 7.5 V, and 9 V versions of our D24V25Fx regulators, previously available only in a 5 V version. The D24V25x is a family of step-down regulators that take an input voltage as high as 38 V and have a typical maximum output current around 2.5 A. For more information, take a look at one of the items listed below or check out our step-down voltage regulators category page.
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New product: Sharp GP2Y0A51SK0F Analog Distance Sensor 2-15cm
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Sharp GP2Y0A51SK0F Analog Distance Sensor 2-15cm with wires soldered directly to the sensor PCB. |
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We are now carrying the short-range Sharp GP2Y0A51SK0F Analog Distance Sensor. Like the GP2Y0D815Z0F we released a few months ago, this sensor has a maximum intended sensing range of 15 cm, but unlike that other sensor, this module tells you where the detected object is in its 2 cm to 15 cm range. Its close minimum sensing distance of 2 cm and high 60 Hz update rate make this a great choice for close-proximity range-finding, or the analog voltage output can be passed through a comparator to make an adjustable-threshold alternative to our digital Sharp distance sensors.
This sensor uses a 1.5 mm pitch JST ZH connector, which is different from the connectors on all the other Sharp sensors we carry. Unfortunately, this means it will not work with the JST PH cables we recommend for use with some of those other sensors. We are working on getting compatible cables, but in the interim, it is not too difficult (but not exactly easy) to solder wires directly to the output pins like in the picture on the right.
This sensor is also quite a bit smaller than most of the other analog Sharp sensors, so it will not work with our new brackets.
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A variety of Sharp distance sensors. From left to right: GP2Y0A02, GP2Y0A21 or GP2Y0A41, GP2Y0A51, and GP2Y0D8xx. |
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For more information, see the GP2Y0A51SK0F product page.
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New products: D24V10Fx 1 A step-down voltage regulators
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We’ve just released a new family of D24V10Fx step-down voltage regulators. These buck regulators are very similar to the D24V5Fx regulator family we introduced in March, but they use the Intersil ISL85410 regulator IC – a higher-current relative of the ISL85415 on the D24V5x – that allows them to output twice as much current (up to 1 A). The D24V10Fx family is available in five different versions with fixed output voltages of 3.3V, 5V, 6V, 9V, and 12V.
Like their 500 mA counterparts, the D24V10Fx regulators operate with input voltages as high as 36 V at typical efficiencies of 80% to 95%. They feature the same power-save mode to improve efficiency at light loads, along with low dropout voltages and integrated protection against over-temperature and over-current conditions. All this makes them a good choice for powering applications where input voltage and operating current might vary over a wide range.
The slightly larger size of these new regulator boards (0.5″ × 0.7″ × 0.14″; 18 mm × 13 mm × 3.5 mm) makes room for a fifth pin that provides a “power good” indication (PG), but they are still not much bigger than standard through-hole linear regulators. The picture below shows a D24V10Fx, a D24V5Fx, and a 7805 voltage regulator in a TO-220 package:
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For other regulator options, you can take a look at our full selection of step-up voltage regulators, step-down voltage regulators, and step-up/step-down voltage regulators.
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New products: Pololu T-shirts
We have a new batch of T-shirts available, just in time for winter! These shirts are very similar to the ones we released in 2012, featuring a printed circuit board (PCB) design in the shape of the Pololu logo on the front and the Pololu slogan “Engage Your Brain” on the back.
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The shirts are available in a variety of youth and adult sizes, and this time we have two new colors available in addition to our standard royal blue: cardinal red and charcoal gray.
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You can find our full selection in our T-shirts category.
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New products: Stackable headers for the Raspberry Pi
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Stackable 0.100″ Female Header: 2×20-pin, Straight. |
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We now have special extended, stackable female headers for the Raspberry Pi:
- Stackable 0.100″ Female Header with Extra 0.3″ Spacer: 2×20-pin, Straight
- Stackable 0.100″ Female Header: 2×20-pin, Straight
- Stackable 0.100″ Female Header with Extra 0.2″ Spacer: 2×13-pin, Straight
- Stackable 0.100″ Female Header: 2×13-pin, Straight
The 2×20 versions work with the Raspberry Pi Model B+ (and the just-released A+), while the 2×13 versions match the I/O header on the older Raspberry Pi Models A and B.
See our Raspberry Pi category for our full selection of Raspberry Pi accessories.
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New product: Parallax BASIC Stamp Discovery Kit (USB)
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We are now carrying the USB version of the BASIC Stamp Discovery Kit. Please see the product page for more information.
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New products: Brackets for mini plastic gearmotors
Our mini plastic gearmotors make great low-cost actuators for small robots, but they have one major shortcoming: they are not easy to mount (the offset versions have just one mounting hole and the 90° versions don’t have any). Well, today I am pleased to announce that we now have two mounting solutions!
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These new plastic brackets, available in a wide version and a tall version, are designed specifically for our mini plastic gearmotors, with internal ridges that fit into recessed features on the gearmotors to hold them securely in place. Both brackets are compatible with all of our mini plastic gearmotors, and the two versions allow for different mounting orientations, some of which can be seen in the pictures below:
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In some orientations, features of the mini plastic gearmotor cases prevent them from being flush with a flat mounting surface. To address this, we include a spacer plate with each bracket that fits between the gearmotor and the mounting surface in these orientations, keeping the motor level. If you look closely at the pictures above, you can see the spacer plate being used in three of them.
These new brackets are sold in pairs along with mounting hardware (two M3 screws and nuts per bracket).
See the product pages for additional information:
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New products: Brackets for Sharp GP2Y0A02, GP2Y0A21, and GP2Y0A41 distance sensors
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Our new stamped aluminum L-brackets are specifically designed for Sharp’s popular analog GP2Y0A02, GP2Y0A21, and GP2Y0A41 distance sensors, making it easy to mount them to your project in a variety of ways. The brackets are made of 0.8mm-thick aluminum, so they are light and bendable by hand if your application calls for something other than their default 90° angle, yet they are rigid enough to hold their position while in use.
These new brackets are sold in pairs and are available in three different versions: compact perpendicular and parallel versions, and a slightly larger but more versatile multi-option version.
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The appropriate bracket for your project depends on the specifics of how you would like to mount it. For example, if you want a low-profile installation on a horizontal surface, the parallel bracket (pictured above on the left) is a good choice. For a low-profile installation off of a vertical surface, the perpendicular bracket (pictured above on the right) might be most appropriate. The multi-option bracket (pictured above in the center) allows the sensor to be mounted to either face, so it supports both perpendicular and parallel orientations, and the long slots offer a lot of flexibility in sensor placement relative to the mounting surface.
See the product pages for additional information:
- Bracket Pair for Sharp GP2Y0A02, GP2Y0A21, and GP2Y0A41 Distance Sensors – Perpendicular
- Bracket Pair for Sharp GP2Y0A02, GP2Y0A21, and GP2Y0A41 Distance Sensors – Parallel
- Bracket Pair for Sharp GP2Y0A02, GP2Y0A21, and GP2Y0A41 Distance Sensors – Multi-Option
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Free magazines: Circuit Cellar, Elektor, and now Robot!
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Get FREE copies of Circuit Cellar magazine’s November issue and Elektor magazine’s November issue with your order, while supplies last. To get your free issues, enter the coupon codes CIRCUIT1114 and ELEKTOR1114 into your shopping cart. Each magazine will add 6 ounces to the package weight when calculating your shipping options.
For back issues and more information, see our free Circuit Cellar magazine offers and free Elektor magazine offers.
Introducing Robot Magazine
We are now also offering free issues of Robot, a bimonthly magazine specifically for the robot enthusiast! We have the three most recent issues available, while supplies last:
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To get your free issues, enter the coupon codes ROBOT0714, ROBOT0914, and ROBOT1114 for July/August, September/October, and November/December, respectively. Each magazine will add 6 ounces to the package weight when calculating your shipping options.
For more information, see our free Robot Magazine offers category.
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New products: MP micro metal gearmotors with extended motor shafts
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Several gear ratios of our medium-power (MP) micro metal gearmotors are now available with extended motor shafts:
- 10:1 MP micro metal gearmotor with extended motor shaft – 2200 RPM (no-load) and 3 oz-in torque (stall) at 6 V
- 75:1 MP micro metal gearmotor with extended motor shaft – 290 RPM (no-load) and 17 oz-in torque (stall) at 6 V
- 100:1 MP micro metal gearmotor with extended motor shaft – 220 RPM (no-load) and 19 oz-in torque (stall) at 6 V
The extended motor shaft rotates at the same speed as the input to the gearbox and offers a way to add an encoder, such as our new magnetic encoder for micro metal gearmotors (pictured below), to provide motor speed or position feedback.
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For more information, see the product pages or check out our entire category of micro metal gearmotors.
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