Posts by Ben (Page 7)

You are currently viewing a selection of posts from the Pololu Blog. You can also view all the posts.

Popular tags: community projects new products raspberry pi arduino more…

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

HPCB micro metal gearmotors with extended motor shafts

Posted by Ben on 25 October 2015
Tags: new products

It has been a few months since we introduced our new high-power micro metal gearmotors with longer life carbon brushes. We now have them available with dual shafts, and we have made a corresponding update to our magnetic encoders to let them work with the larger terminals of the HPCB motors.

Magnetic Encoder Kit for Micro Metal Gearmotors (old version; not compatible with HPCB micro metal gearmotors).

Magnetic Encoder Kit for Micro Metal Gearmotors (HPCB compatible).

You might see similar-looking motors elsewhere, but no one comes close to our offering, from the quality of the gears to the variety of winding options to the selection of gear ratios, all in stock for shipment the day you order. By bringing together Pololu’s exclusive features of high-power windings, long-life carbon brushes, and encoders for closed-loop feedback control into a single package, these latest motors and encoders really demonstrate our continual investment in this popular form factor. With ten gear ratios available, from 10:1 through 1000:1, our total selection of micro metal gearmotors has grown to nearly 70 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 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
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
120 RPM 60 oz-in 250:1 HP
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 2200 RPM 3 oz-in 10:1 MP 10:1 MP dual-shaft
730 RPM 8 oz-in 30:1 MP
420 RPM 13 oz-in 50:1 MP
290 RPM 17 oz-in 75:1 MP 75:1 MP dual-shaft
220 RPM 19 oz-in 100:1 MP 100:1 MP dual-shaft
150 RPM 24 oz-in 150:1 MP
75 RPM 46 oz-in 298:1 MP
25 RPM 80 oz-in 1000:1 MP 1000:1 MP dual-shaft
low-power 360 mA 2500 RPM 1 oz-in 5:1
1300 RPM 2 oz-in 10:1
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
120 RPM 12 oz-in 100:1 100:1 dual-shaft
85 RPM 17 oz-in 150:1
60 RPM 27 oz-in 210:1
50 RPM 32 oz-in 250:1
45 RPM 40 oz-in 298:1 298:1 dual-shaft
14 RPM 70 oz-in 1000:1 1000:1 dual-shaft


You can see all ten of the new versions below, and if there are any versions we do not yet have that you would like to see us carry, let us know in the comments!

Polo-BOO! Halloween Sale

Posted by Ben on 7 October 2015



Halloween is just around the corner, but there is still time for you makers out there to build terrifying interactive props and amazing costumes, and we want to help. From now through October 21, we are having a sale on servos and servo controllers, proximity sensors, programmable microcontroller boards, power supplies, and more – all the products you might want to bring your creepy creations to life. See the sale page for more details and the full list of products.

If you need some inspiration, check out our sample Halloween projects, and as always, we would love to hear about anything cool you make with our products; we might feature it on the blog!

New product: 12V, 2.2A Step-Down Voltage Regulator D24V22F12

Posted by Ben on 6 October 2015
Tags: new products

We are pleased to introduce our new 12 V, 2.2 A switching regulator, the inaugural member of the D24V22Fx family of step down voltage regulators. We expect to release other voltage versions next month, but we wanted to get a 12 V version out right away since we did not offer a 12 V buck regulator that could do more than 1 A. The compact regulator works with input voltages up to 36 V and can typically deliver up to a continuous 2.2 A. It offers integrated reverse voltage protection along with over-current and over-temperature shutoff, and a power-good output can be used to determine when the regulator cannot maintain its output voltage.

Unlike linear regulators which waste a lot of power and generate a lot of heat in the process, this new regulator is very efficient, which means you can get the most out of your battery life:

Until we release other voltage versions of the D24V22Fx, the closest substitutes are the similar D24V25Fx family of step-down voltage regulators:

These regulators are the same size as the D24V22F12 and they have similar current capabilities and input voltage ranges, but they do not have the same pinout and they are based on a different internal design, so there are fundamental differences in operation.

See the D24V22F12 product page for more information on this new regulator, or visit our voltage regulator category to see all of our regulator options.

New Products

DRV8434 Stepper Motor Driver Carrier (Header Pins Soldered)
6V, 3.3A Step-Down Voltage Regulator D30V30F6
VL53L7CX Time-of-Flight 8×8-Zone Wide FOV Distance Sensor Carrier with Voltage Regulator, 350cm Max
Motoron M3S550 Triple Motor Controller Shield Kit for Arduino
ACS724 Current Sensor Carrier -2.5A to +2.5A
12V, 2.5A Step-Up/Step-Down Voltage Regulator S13V25F12
Motoron M1T550 Single I²C Motor Controller
Zumo 2040 Robot (Assembled with 50:1 HP Motors)
Motoron M3S550 Triple Motor Controller Shield for Arduino (Connectors Soldered)
4.2-15V, 3A Fine-Adjust Step-Down Voltage Regulator w/ Adjustable Low-Voltage Cutoff D30V30MASCMA
Log In
Pololu Robotics & Electronics
Shopping cart
(702) 262-6648
Same-day shipping, worldwide
Menu
Shop Blog Forum Support
My account Comments or questions? About Pololu Contact Ordering information Distributors