WatangTech
MCP23017 I/O Expander Module - 16 GPIO Pins, I2C Interface, Onboard 3-Digit DIP Switch - Compatible with Raspberry Pi, Arduino, STM32 (3.3V/5V)
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
SpecPicks Verdict
SpecPicks classifies MCP23017 I/O Expander Module - 16 GPIO Pins, I2C Interface, Onboard 3… as a category leader on buyer feedback in the emulation hardware category, based on 4 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. WatangTech's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for emulation hardware of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 5.0★ average across customer reviews
- ✓ I2C interface with minimal pin usage
- ✓ Backed by WatangTech's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Limited review volume so far — fewer data points on long-term reliability
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- I2C interface with minimal pin usage
- Compatible with 3.3V/5V operating levels
- Equipped with PH2.0 connector and reserved 2.54mm pitch pads for easy connection to other development boards
- Onboard 3-bits DIP switch for user-friendly I2C address setting
- Provides open-source example programs Compatible with Raspberry Pi, Arduino, and STM32 development boards
Full Specifications
| Brand | WatangTech |
|---|---|
| Model Name | WT-SG-IO-E017-A |
| Unit Count | 1.0 Count |
| Model Number | WT-SG-IO-E017-A |
| Compatibility | Switch |
| Built-In Media | 1.SG-IO-E017-A×1 2.PH2.0 6PIN connecting cable×1 |
| Processor Count | 1 |
| Operating System | Linux |
| Compatible Devices | Raspberry Pi, Arduino, STM32 |
| Included Components | 1.SG-IO-E017-A×1 2.PH2.0 6PIN connecting cable×1 |
| Warranty Description | 1 year |
| Connectivity Technology | I2C |
| Smart Home Compatibility | Not Smart Home Compatible |
Ready to buy?
MCP23017 I/O Expander Module - 16 GPIO Pins, I2C Interface, Onboard 3-Digit DIP Switch - Compatible with Raspberry Pi, Arduino, STM32 (3.3V/5V) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
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