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IO Expander for XIAO is a solderable expansion board that perfectly matches Seeed Studio XIAO series. It offers 16 extra IOs, 2 power outputs, and a Grove IIC port, along with extra output pads(GND, INTB, INTA, and RST), providing configurable I2C address for allowing dual expansion boards to work simultaneously. All of these are solderable and will enhance your creativity.
Features
IO Expander for XIAO is a solderable expansion board that perfectly matches Seeed Studio XIAO series, designed to expand the connectivity and enhance the functionality.
Powered by the MCP23017, it utilizes IIC port with high communication of 400 kHz, to break out additional solderable 16 extra IOs, where they can output up to 25mA and the input mode can be configured to pull up. Meanwhile, it also provides 2 power outputs (2 VCC and 2 GND), 1 Grove IIC bus port, along with extra output pads, including GND, INTB, INTA, and RST.
This board also provides J1 pads and J2 pads where J1 pads allow the pins RST, INTB, and INTA of the MCP23017 chip to be connected to the pins D6, D1, and D0 of the XIAO board, and J2 Pads pads are used for selecting the IIC address of the MCP23017 chip. The selectable II2 address ensures one Seeed Studio XIAO board can connect with two IO Expander boards, to have a total 32 IOs for extensive application.
The expansion board features Grove pads that are designed for connecting Grove modules using soldered Grove sockets. These pads are connected to the I2C bus, enabling seamless integration with compatible Grove modules.
It adopts XIAO 21 x 17.5mm compact design, everything is solderable and would be perfect for solder enthusiasts.
Exact shipping can be calculated on the view cart page (no login required).
Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).
We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):
Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.
Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.
International Orders - the following rates are for New Zealand and will vary for other countries:
If you order lots of gear, the postage amount will increase based on the weight of your order.
Our physical address (here's a PDF which includes other key business details):
Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia
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