Posts by Ben

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Independence Day weekend sale

Posted by Ben on 1 July 2016


In celebration of Independence Day (July 4th), we are discounting selected products by up to 25% and offering an upgrade to the next best price break for everything else in our store. Please note that we will be closed Monday, so orders will not ship until Tuesday, July 5.

For more information, including all the discount coupon codes, see the sale page.

Happy 4th of July!

Memorial Day weekend sale

Posted by Ben on 27 May 2016



We are having a big Memorial Day sale now through Monday, with discounts on over 800 products when you use the coupon code MEMORIALDAY16. Stock up on robot parts now so you can build cool things all summer long! Note that we will be closed on Monday, so orders will not ship until Tuesday, May 31.

For more information, including all of the sale items, see the sale page.

Sixteen new micro metal gearmotor versions!

Posted by Ben on 22 April 2016
Tags: new products

We just added 16 new micro metal gearmotors to our already huge selection, including three totally new MP (medium power) gear ratios: 5:1 MP, 210:1 MP, and 250:1 MP. With these new additions, we now have dual-shaft versions available in any combination of our 11 gear ratios and four motor types, giving you 44 different options that work with encoders like our magnetic encoder pair kit.

Magnetic Encoder Kit for Micro Metal Gearmotors assembled on a micro metal gearmotor with extended motor shaft.

In all, this increases our total selection of micro metal gearmotors to 85 unique options:

Motor Type Stall
Current
@ 6 V
No-Load
Speed
@ 6 V
Approximate
Stall Torque
@ 6 V


Single-Shaft
(Gearbox Only)


Dual-Shaft
(Gearbox & Motor)
high-power,
carbon brushes
(HPCB)
1600 mA 6000 RPM 2 oz-in 5:1 HPCB 5:1 HPCB dual-shaft
3000 RPM 4 oz-in 10:1 HPCB 10:1 HPCB dual-shaft
1000 RPM 9 oz-in 30:1 HPCB 30:1 HPCB dual-shaft
625 RPM 15 oz-in 50:1 HPCB 50:1 HPCB dual-shaft
400 RPM 22 oz-in 75:1 HPCB 75:1 HPCB dual-shaft
320 RPM 30 oz-in 100:1 HPCB 100:1 HPCB dual-shaft
200 RPM 40 oz-in 150:1 HPCB 150:1 HPCB dual-shaft
140 RPM 50 oz-in 210:1 HPCB 210:1 HPCB dual-shaft
120 RPM 60 oz-in 250:1 HPCB 250:1 HPCB dual-shaft
100 RPM 70 oz-in 298:1 HPCB 298:1 HPCB dual-shaft
32 RPM 125 oz-in 1000:1 HPCB 1000:1 HPCB dual-shaft
high-power
(HP)


(same specs as
HPCB above)
1600 mA 6000 RPM 2 oz-in 5:1 HP 5:1 HP dual-shaft
3000 RPM 4 oz-in 10:1 HP 10:1 HP dual-shaft
1000 RPM 9 oz-in 30:1 HP 30:1 HP dual-shaft
625 RPM 15 oz-in 50:1 HP 50:1 HP dual-shaft
400 RPM 22 oz-in 75:1 HP 75:1 HP dual-shaft
320 RPM 30 oz-in 100:1 HP 100:1 HP dual-shaft
200 RPM 40 oz-in 150:1 HP 150:1 HP dual-shaft
140 RPM 50 oz-in 210:1 HP 210:1 HP dual-shaft
120 RPM 60 oz-in 250:1 HP 250:1 HP dual-shaft
100 RPM 70 oz-in 298:1 HP 298:1 HP dual-shaft
32 RPM 125 oz-in 1000:1 HP 1000:1 HP dual-shaft
medium-power
(MP)
700 mA 4400 RPM 1.5 oz-in 5:1 MP dual-shaft
2200 RPM 3 oz-in 10:1 MP 10:1 MP dual-shaft
730 RPM 8 oz-in 30:1 MP 30:1 MP dual-shaft
420 RPM 12 oz-in 50:1 MP 50:1 MP dual-shaft
290 RPM 17 oz-in 75:1 MP 75:1 MP dual-shaft
220 RPM 21 oz-in 100:1 MP 100:1 MP dual-shaft
150 RPM 28 oz-in 150:1 MP 150:1 MP dual-shaft
100 RPM 36 oz-in 210:1 MP dual-shaft
90 RPM 41 oz-in 250:1 MP dual-shaft
75 RPM 46 oz-in 298:1 MP 298:1 MP dual-shaft
22 RPM 80 oz-in 1000:1 MP 1000:1 MP dual-shaft
low-power 360 mA 2500 RPM 1 oz-in 5:1 5:1 dual-shaft
1300 RPM 2 oz-in 10:1 10:1 dual-shaft
440 RPM 4 oz-in 30:1 30:1 dual-shaft
250 RPM 7 oz-in 50:1 50:1 dual-shaft
170 RPM 9 oz-in 75:1 75:1 dual-shaft
120 RPM 12 oz-in 100:1 100:1 dual-shaft
85 RPM 17 oz-in 150:1 150:1 dual-shaft
60 RPM 27 oz-in 210:1 210:1 dual-shaft
50 RPM 32 oz-in 250:1 250:1 dual-shaft
45 RPM 40 oz-in 298:1 298:1 dual-shaft
14 RPM 70 oz-in 1000:1 1000:1 dual-shaft

New products: MinIMU-9 and AltIMU-10 v5 IMU boards

Posted by Ben on 4 February 2016
Tags: new products

We have released new versions of our MinIMU-9 and AltIMU-10 inertial measurement unit (IMU) modules, which use an I²C interface to provide nine independent rotation, acceleration, and magnetic measurements that can be used to calculate the sensor’s absolute orientation (the AltIMU also includes an altimeter). These v5 editions feature ST’s new LIS3MDL 3-axis magnetometer and LSM6DS33 3-axis accelerometer and gyro, which allow them to offer improved performance over previous versions at lower prices. The new versions are pin-compatible with the previous ones, though software written for older IMU versions will need to be changed to work with the v5 since the sensor ICs have changed.

We think these new boards combine the best ST MEMS sensors into compact boards at great prices. However, our older MinIMU-9 v3, AltIMU-10 v3, and AltIMU-10 v4 are still available for now at reduced clearance prices, so if you don’t absolutely need ST’s newest sensors on your IMU, these previous versions are still very good sensor boards to consider.

Here’s an updated version of our diagram showing where the new v5 modules fit in:

Evolution and release dates of Pololu carriers for ST’s MEMS sensors through January 2016.

New products: 12V 25D mm gearmotors with encoders

Posted by Ben on 13 January 2016
Tags: new products

All of our 25D mm metal gearmotors, including the newest versions with 12V motors, are now available with quadrature encoders. That’s 37 new products in all! With five different motor winding options and gear ratios available from 4.4:1 through 499:1, our total selection of 25D mm metal gearmotors has grown to nearly 100 options:

Rated
Voltage
Motor Type Stall
Current
@ Rated Voltage
No-Load
Speed
@ Rated Voltage
Approximate
Stall Torque
@ Rated Voltage


With Encoder


Without Encoder
6 V high-power
(HP)
6.5 A 10,000 RPM 5 oz-in 1:1 HP 6V w/encoder
2150 RPM 20 oz-in 4.4:1 HP 6V w/encoder 4.4:1 HP 6V
990 RPM 39 oz-in 9.7:1 HP 6V w/encoder 9.7:1 HP 6V
460 RPM 75 oz-in 20.4:1 HP 6V w/encoder 20.4:1 HP 6V
280 RPM 90 oz-in 34:1 HP 6V w/encoder 34:1 HP 6V
200 RPM 115 oz-in 47:1 HP 6V w/encoder 47:1 HP 6V
130 RPM 150 oz-in 75:1 HP 6V w/encoder 75:1 HP 6V
97 RPM 210 oz-in 99:1 HP 6V w/encoder 99:1 HP 6V
56 RPM 350 oz-in 172:1 HP 6V w/encoder 172:1 HP 6V
6 V low-power
(LP)
2.4 A 6200 RPM 2 oz-in 1:1 LP 6V w/encoder
1300 RPM 8 oz-in 4.4:1 LP 6V w/encoder 4.4:1 LP 6V
590 RPM 17 oz-in 9.7:1 LP 6V w/encoder 9.7:1 LP 6V
290 RPM 33 oz-in 20.4:1 LP 6V w/encoder 20.4:1 LP 6V
170 RPM 50 oz-in 34:1 LP 6V w/encoder 34:1 LP 6V
120 RPM 65 oz-in 47:1 LP 6V w/encoder 47:1 LP 6V
78 RPM 95 oz-in 75:1 LP 6V w/encoder 75:1 LP 6V
58 RPM 130 oz-in 99:1 LP 6V w/encoder 99:1 LP 6V
34 RPM 200 oz-in 172:1 LP 6V w/encoder 172:1 LP 6V
25 RPM 220 oz-in 227:1 LP 6V w/encoder 227:1 LP 6V
15 RPM 300 oz-in 378:1 LP 6V w/encoder 378:1 LP 6V
11 RPM 400 oz-in 499:1 LP 6V w/encoder 499:1 LP 6V
12 V high-power
(HP)
5.6 A 10,200 RPM 5.5 oz-in 1:1 HP 12V w/encoder
2250 RPM 23 oz-in 4.4:1 HP 12V w/encoder 4.4:1 HP 12V
1030 RPM 44 oz-in 9.7:1 HP 12V w/encoder 9.7:1 HP 12V
500 RPM 85 oz-in 20.4:1 HP 12V w/encoder 20.4:1 HP 12V
290 RPM 120 oz-in 34:1 HP 12V w/encoder 34:1 HP 12V
210 RPM 165 oz-in 47:1 HP 12V w/encoder 47:1 HP 12V
130 RPM 240 oz-in 75:1 HP 12V w/encoder 75:1 HP 12V
100 RPM 300 oz-in 99:1 HP 12V w/encoder 99:1 HP 12V
12 V medium-power
(MP)
2.1 A 7800 RPM 2.7 oz-in 1:1 MP 12V w/encoder
1700 RPM 11 oz-in 4.4:1 MP 12V w/encoder 4.4:1 MP 12V
770 RPM 22 oz-in 9.7:1 MP 12V w/encoder 9.7:1 MP 12V
370 RPM 42 oz-in 20.4:1 MP 12V w/encoder 20.4:1 MP 12V
220 RPM 63 oz-in 34:1 MP 12V w/encoder 34:1 MP 12V
160 RPM 85 oz-in 47:1 MP 12V w/encoder 47:1 MP 12V
100 RPM 125 oz-in 75:1 MP 12V w/encoder 75:1 MP 12V
76 RPM 165 oz-in 99:1 MP 12V w/encoder 99:1 MP 12V
43 RPM 250 oz-in 172:1 MP 12V w/encoder 172:1 MP 12V
33 RPM 320 oz-in 227:1 MP 12V w/encoder 227:1 MP 12V
12 V low-power
(LP)
1.1 A 5600 RPM 2 oz-in 1:1 LP 12V w/encoder
1200 RPM 8 oz-in 4.4:1 LP 12V w/encoder 4.4:1 LP 12V
560 RPM 15 oz-in 9.7:1 LP 12V w/encoder 9.7:1 LP 12V
260 RPM 29 oz-in 20.4:1 LP 12V w/encoder 20.4:1 LP 12V
150 RPM 43 oz-in 34:1 LP 12V w/encoder 34:1 LP 12V
110 RPM 60 oz-in 47:1 LP 12V w/encoder 47:1 LP 12V
71 RPM 85 oz-in 75:1 LP 12V w/encoder 75:1 LP 12V
55 RPM 115 oz-in 99:1 LP 12V w/encoder 99:1 LP 12V
31 RPM 180 oz-in 172:1 LP 12V w/encoder 172:1 LP 12V
23 RPM 240 oz-in 227:1 LP 12V w/encoder 227:1 LP 12V
14 RPM 320 oz-in 378:1 LP 12V w/encoder 378:1 LP 12V

Closed December 25 and January 1

Posted by Ben on 23 December 2015


We will be closed for Christmas on Friday, December 25 and for New Year’s Day on Friday, January 1, so orders placed after 2 PM Pacific Time on the 24th or 31st will be shipped on the following Monday. Additionally, FedEx Ground does not ship on the 24th (tomorrow).

Merry Christmas and happy New Year!

New products: 3.3V, 5V, 6V, 7.5V, and 9V Step-Down Voltage Regulator D24V22Fx

Posted by Ben on 1 December 2015
Tags: new products

This post is a few weeks late, but I am following up on my original D24V22F12 12V regulator introduction to let you know that we now have 3.3 V, 5 V, 6 V, 7.5 V, 9 V, and 12 V versions of our new D24V22Fx family of step-down voltage regulators. These regulators all have typical efficiencies of 85% to 95% and can deliver continuous currents over 2 A in typical applications.

The new D24V22Fx regulators are priced lower than the older D24V25Fx family that they will be replacing. The two designs have the same size and similar current capabilities and input voltage ranges, but they do not have the same pinout and are based on different internal circuits, so there are fundamental differences in operation. In particular, these newer D24V22Fx regulators have much lower dropout voltages and provide a “power good” signal, and the newer design allows for higher output voltages (e.g. 12 V).

See the product pages for any of the D24V22Fx regulators for more information on these new regulators, or visit our voltage regulator category to see all of our regulator options.

Black Friday/Cyber Monday deals revealed!

Posted by Ben on 24 November 2015


All of the sale details are now listed on our Black Friday/Cyber Monday sale page. Check them out and get your carts ready because the sale starts in less than six hours! Here are just some of the deals:

Our Black Friday/Cyber Monday sale is almost here!

Posted by Ben on 23 November 2015



Our biggest sale of the year is less than two days away! As in previous years, we are offering huge discounts on hundreds of products, but we’re also introducing a new feature this time around: upgrades to the next best price break on the rest of the products we carry. You will also be able to select free bonus items with orders over $100. We have put up some of the special offers on the Black Friday/Cyber Monday sale page; stay tuned for more details, including the full list of discounted products and coupon codes.

37D mm metal gearmotors with encoders and end caps

Posted by Ben on 3 November 2015
Tags: new products

Our 37D mm metal gearmotors now have fitted plastic end caps over their encoders that neatly protect the assembly and keep stray objects clear of the magnetic disc. The pictures below show the previous version (without end cap) next to one of the new ones:

The end cap is easily removable if you need to access the encoder or want a few more millimeters of clearance for your gearmotor, but there is a little bit of base plastic that will remain (as shown in the picture below), so removing the end cap does not quite make these new ones identical to the previous versions.

37D mm metal gearmotor with 64 CPR encoder (with end cap removed).

These gearmotors are available in six different gear ratios and with or without encoders, and we also carry the motor and encoder assembly by itself with no gearbox. The following table shows all of our 37D mm metal gearmotor options:

Gear Ratio No-Load
Speed
@ 12 V
Stall Torque
@ 12 V
Stall Current
@ 12 V


With Encoder


Without Encoder
1:1 11,000 RPM 5 oz-in 5 A motor without gearbox
19:1 500 RPM 84 oz-in 5 A 37Dx52L mm 37Dx52L mm
30:1 350 RPM 110 oz-in 5 A 37Dx52L mm 37Dx52L mm
50:1 200 RPM 170 oz-in 5 A 37Dx54L mm 37Dx54L mm
70:1 150 RPM 200 oz-in 5 A 37Dx54L mm 37Dx54L mm
100:1 100 RPM 220 oz-in 5 A 37Dx57L mm 37Dx57L mm
131:1 80 RPM 250 oz-in 5 A 37Dx57L mm 37Dx57L mm

New Products

Magnetic Encoder Pair Kit for Mini Plastic Gearmotors, 12 CPR, 2.7-18V
T1-3/4 (5mm) RGB LED with Diffused Lens (5-pack)
Hakko FA-400 Smoke Absorber
VL53L0X Time-of-Flight Distance Sensor Carrier with Voltage Regulator, 200cm Max
USB Micro-B Connector Breakout Board
Free Circuit Cellar magazine July 2016
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