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Description
Seeeduino XIAO Expansion BoardFeatures Quick Prototyping: Easy debug and Reset with RESET button and SWD pin led out to the male header. 0. 96" OLED, enables visual data to display without PC serial monitor. Rich peripherals: OLED display, RTC, expandable memory space, passive buzzer, user button, on board battery management chip One board on hand to explore infinite possibilities of Seeeduino XIAO. No Soldering Needed: All pin led out. Convenient plug and play Grove connectors
Features
- Quick Prototyping: Easy debug and Reset with RESET button and SWD pin led out to the male header. 0.96" OLED, enables visual data to display without PC serial monitor.
- Rich peripherals: OLED display, RTC, expandable memory space, passive buzzer, user button, on board battery management chip… One board on hand to explore infinite possibilities of Seeeduino XIAO.
- No Soldering Needed: All pin led out. Convenient plug and play Grove connectors support multiple data protocols, including IIC, Uart, Analog/Digital.
-
Circuit Python Supported: Well supports circuit python. Mini SD card slot enables memory space expand, making it possible to allocate more libraries needed in prototyping and project building.
Mini Size: Compact and elegant with only half Raspberry Pi 4 size, perfect for tiny and wearable projects.
Seeeduino XIAO expansion Board is a powerful functional expansion board for Seeeduino XIAO of only half Raspberry Pi 4 size. It enables build prototype and project in an easy and quick way. With its rich peripherals, you could explore infinite possibilities of Seeeduino XIAO. Circuit python is also well supported by this board.
Hardware Overview
Rich peripherals on board including
- OLED display: Visual data display without connecting to PC, which enables debug in a more efficient way, and builds application such as a sensor hub, data monitor system, .etc
- RESET button: No more jumper wire and short circuit, easy reset with just one click.
- SWD debug: SWD pin led out as male pin header, making debugger connection and firmware download much easier.
- High precision RTC: High precision real-time clock with battery backup, enable maintain accurate time when the main power is turned off.
- Expandable memory: With a MicroSD card slot on the back, no worry about the memory limit any more when adding libraries and using circuit python.
- User button: Besides the RESET button, also provide another user-defined button.
- Passive buzzer: Same passive buzzer on Wio Terminal, with which you could change the PMW frequency to award different beep sound to get a "buzzer music".
- Grove connectors: All pin led out, plug and play grove connectors support common data protocols (Grove IIC2, Grove UART1, A0/D0 Grove*1)
- Lipo Battery Charging: JST2.0mm standard lipo battery connector and battery management system, supports both USB and lipo battery power supply, and easy onboard battery recharge.
- 5V servo connector: 5V output led out to male header for 5V servo and sensor connection.
Seeeduino XIAO has become one of the hottest products in the Seeeduino series since its release. You may adore its small size and elegant design, powerful CPU powered by SAMD21, or rich interfaces of GPIOs, but no matter what reason makes Seeeduino XIAO attract to you, now you have one more reason now - Seeeduino XIAO Expansion Board, which will definitely help you to explore infinite possibilities with Seeeduino XIAO.
Applications
Specifications
| Item | Detail |
|---|---|
| Power Supply | 5v / 3.7V Lithium Battery |
| RTC chip | PCF8563T/5 |
| RTC battery | CR1220 |
| Expandable memory | MicroSD Card |
| Screen | 0.96 OLED display |
| Other External Equipment | Passive buzzer, user button, 5Vservo connector |
| charging current | Max: 460mA |
| Grove Interface | Grove I2C *2, Grove UART *1, A0/D0 Grove *1 |
Pinout
Supported Boards
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.4 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 3
less than 24 hours :/
Color: Grey Bear - Large, Color: Grey Bear - Large
smaller than i expected but had a strong interior that i was pleasantly surprised with. my lil lady very much enjoyed it, however it lasted less than 24 hours before the poor toy was skinned alive :( she loves plushies and she’s obsessed w his skin after tearing him apart. it does have a solid rubber interior that is still good as a toy, however i was hoping its skin would stay on longer than a day :( overall decent toy, 3 stars for being destroyed so quickly. wouldn’t recommend for strong chewers
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Reviewed in the United States on August 7, 2025
★★★★★ 5
Lasts long
Color: Panda Bear - Large
Perfect for super chewer dogs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
★★★★★ 4
Dachshund said “did I hear indestructible‽ Hold my ball”
Color: Grey Bear - Large
My 15lb Dachshund took this toy as a personal challenge.
He heard me tell his human brother that it’s indestructible on the inside and said “hold my ball” promptly proceeding to schmurder the textile aspect of this adorable toy.
I’d say it took him a total of 23 1/2 minutes to get to the center of this tootsie pop. I’m not even mad tho bc he had no interest in actually ingesting the outer part, and is totally into the inner toy, which is, for him, literally indestructible. It’s solid rubber, has a wild and fun bounce to it on multiple surfaces.
Zodiac rates the squeak 10/10. It’s great especially for when I’m on a call or talking to someone in real life and can’t immediately throw said toy or pay complete attention to him.
In conclusion:
Your dog will probably love it, ((suggest to just keep an eye on them during the schmurder process and make sure you grab all the pieces that come off so none are swallowed))
Depending on your tolerance for squeaker pitch and frequency of squeak, it's a 4/10 in annoyance mostly bc it’s not a long drawn out squeak ((I can not tolerate those toys, they get “lost on top on my fridge” until I get up the courage to throw them out without him seeing)), it’s quick and requires a bit of effort to produce the sound however it’s a very high pitch squeak so it’s all up to your preference. I personally try to buy toys I can tolerate my dog loving on bc when he gets a new toy, it’s his favorite thing for a long time, like, it sleeps on the bed with us for the first month.
Hope your fur child loves this as much as mine did.
Not sure I’ll do the whole two in one toy thing again only he got through it so fast.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 25, 2025
★★★★★ 5
LOVE BARK TOYS!!!
Color: Rad Herring - Medium
I got this toy for my 1yr old Husky/Heeler/(possibly)GSD (approx 42lbs) mix when she came to our home mid/late October of 2025 and the toy lasted until December 3rd 2025 when we had to assist her with opening the fabric to get the toy on the inside.
It was a great fun toy for her and the inside toys still is and she loves playing with it. The durability of both the outside and inside toys are great for super chewers! I was glad there was no stuffing because I had gotten her a plush toy once before and she destroyed that immediately. The fabric on this was durable enough to withstand her chewing yet soft enough that it didn’t hurt her teeth. The colors were vibrant and fun for both toys even though wear and tear kinda took some of the fabric color away. I would definitely buy this again once the inside toy is no longer safe for her, especially since the size was perfect for her too.
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Reviewed in the United States on January 12, 2026
★★★★★ 5
Good ball for strong chewers
Color: Cheeze Brawl - Large, Color: Cheeze Brawl - Large
My dog loves this ball except the outside fur gets gross really quickly. However, it’s easy to cutoff and underneath is a strong squeaky ball. It’s like two gifts in one. He’s a very heavy chewer and the ball lasts quite a bit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 31, 2025
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