Pay in installments of $17.00 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 3 - Aug 8
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Pololu 3pi RobotThe 3pi robot is designed to excel in line following and maze solving competitions. It has a small size (9. 5 cm 3. 7" diameter, 83 g 2. 9 oz without batteries) and takes just four AAA cells (not included), while a unique power system runs the motors at a constant 9. 25 V independent of the battery charge level. The regulated voltage allows the 3pi to reach speeds up to 100 cm second while making precise turns and spins that dont vary with the battery
The 3pi robot is designed to excel in line-following and maze-solving competitions. It has a small size (9.5 cm/3.7" diameter, 83 g/2.9 oz without batteries) and takes just four AAA cells (not included), while a unique power system runs the motors at a constant 9.25 V independent of the battery charge level. The regulated voltage allows the 3pi to reach speeds up to 100 cm/second while making precise turns and spins that don’t vary with the battery voltage.
The 3pi robot makes a great platform for people with C programming experience to learn robotics, and it is a fun environment for ambitious beginners to learn C programming. At its heart is an Atmel ATmega328P microcontroller running at 20 MHz and featuring 32 KB of flash program memory, 2 KB RAM, and 1 KB of persistent EEPROM memory. The popular, free GNU C/C++ compiler works perfectly with the 3pi, Atmel’s AVR Studio provides a comfortable development environment, and an extensive set of libraries provided by Pololu makes it a breeze to interface with all of the integrated hardware. The 3pi is also compatible with the popular Arduino development platform. We provide a number of sample programs to show how to use the various 3pi components, as well as how to perform more complex behaviors such as line following and maze solving.
Required Accessories
An external AVR ISP programmer, such as our USB AVR programmer is required to program the 3pi.
The 3pi is powered by 4 AAA batteries, which are not included.
Documents
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 19 reviews
Sort
Product Reviews
★★★★★ 5
I’m smitten
Size: 18, Color: Black
These are so well made and perfect high-rise to keep my belly tucked away. Have the perfect stretch without making me sausage like. Keep shape all day! Great length and look so cute with all kinds of shoes. Can’t wait for sweater weather!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 22, 2025
★★★★★ 1
Disappointed
Size: 12, Color: Medium Wash
Jeans were a different style than what the photo shows. They are also a size 12 but run TINY couldnt even get them up my thighs and I’m a true size 10. Run like a size 7.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2026
★★★★★ 5
Yes PLEASE!!
Size: 10, Color: Medium Wash
LOVE these. Good quality, thick material, flattering fit. I wish they came in more colors, I bought all the colors they offered in my size. I am really impressed with Amazon Essentials clothing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 19, 2025
★★★★★ 2
They fade
Size: 14, Color: Black
The are nice but fade after the 1st wash
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 4
Little big
Size: 20, Color: Rinse Wash
They run just a tiny bit big. The length is more ankle length instead of capri length as shown. However, I liked the wash and the length doesn't bother me. Perfect match to the essentials jacket.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 17, 2025
recommand products
Happy Mother's Day (For Mother In Law) 003 - Forever Love Necklace
59.95
Happy Mother's Day 006 - 18K Yellow Gold Finish Love Knot Necklace
69.95
Happy Mother's Day (For Mother In Law) 002 - 18K Yellow Gold Finish Love Knot Necklace
69.95
Happy Mother's Day 012 - Forever Love Necklace
59.95
Happy Mother's Day (For Mother In Law) 008 - 18K Yellow Gold Finish Love Knot Necklace
69.95