Description:
AW9523B use I2C interface, allows using 4 expansion boards at the same time by modifying the i2c address, expand up to 64 I/O ports.
Pin configuration:
- VCC: Power input(3.3V/5V)
- GND: GND
- SDA: I2C Data input
- SCL: I2C Clock input
- INT: Interrupt output
- RST: Reset
Connect To STM32
Outline Dimensions:
Features:
- I2C bus, allows expanding 16 I/O ports by just using two wires
- Support driving 16-ch common anode constant current LED, 256-step linear dimming, current controllable
- Output interrupt (INT) signal when changing the state of an input port
- I2C address configurable by shorting the A0/A1 jumpers
- Provides two connector options: PH2.0 header and/or solder pads, allows multi I2C modules to be stacked
- Onboard voltage translator, compatible with 3.3V/5V level
- Comes with development resources and manual (examples for Raspberry Pi / micro:bit / Arduino / STM32)
Specification:
| Model: | Expansion Board |
|---|---|
| Interface: | I2C |
| Operating Temperature (°C): | -40-85℃ |
| Current (A) | <0.1µA |
Useful link:
To do Hardware and Software setup, please follow this tutorial.
Packages Includes:
- 1 x Waveshare AW9523B IO Expansion Board, I2C Interface, Expands 16 I/O Pins 447.00
Technical Specifications
| Brand | WAVESHARE |
|---|---|
| Model | AW9523B |
| Interface / Protocol | I2C |
| SKU | AI7634 |
| Weight | 0.02 kg |
| Availability | In Stock |
Applications & Use Cases
The Waveshare AW9523B IO Expansion Board, I2C Interface, Expands 16 I/O Pins is a versatile usb interface module used across a wide range of applications including serial communication, industrial automation, data logging, PLC interfacing, and IoT gateway.
Common use cases:
- Converting USB to RS485 for industrial equipment
- Building a data logger for factory sensors
- Debugging embedded systems via UART
This product is ideal for embedded system developers and industrial automation engineers.
Technical Tip: Industrial-grade modules with isolation protect against ground loops and voltage spikes in noisy environments.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
- Genuine WAVESHARE product sourced from authorized channels
Manoj Sethi (verified owner) –
Pretty good Waveshare AW9523B IO Expansion Board, I2C. Quality is reasonable for the price point.
Deepak Bhat (verified owner) –
Okay Waveshare AW9523B IO Expansion Board, I2C. Functional but not outstanding. Serves its purpose.
Vivek Deshpande (verified owner) –
Pretty good Waveshare AW9523B IO Expansion Board, I2C. Quality is reasonable for the price point.
Tanya Joshi (verified owner) –
Decent quality Waveshare AW9523B IO Expansion Board, I2C. Delivered on time. Satisfied with the purchase.
Kritika Trivedi (verified owner) –
Okay Waveshare AW9523B IO Expansion Board, I2C. Functional but not outstanding. Serves its purpose.
Chetan Tandon (verified owner) –
Pretty good Waveshare AW9523B IO Expansion Board, I2C. Quality is reasonable for the price point.
Saurabh Joshi (verified owner) –
Love this Waveshare AW9523B IO Expansion Board, I2C. Build quality is excellent. Will order more from Zbotic.
Sarthak Patil (verified owner) –
This Waveshare AW9523B IO Expansion Board, I2C is exactly what I needed for my project. Top notch quality.
Prateek Nair (verified owner) –
Great quality Waveshare AW9523B IO Expansion Board, I2C. Fast delivery from Zbotic. Highly recommended.
Atharv Iyer –
Excellent product! My college project is a success thanks to this Waveshare AW9523B IO Expansion Board, I2C from Zbotic.
Priya Garg (verified owner) –
Good Waveshare AW9523B IO Expansion Board, I2C. Works as described. Packaging could be improved slightly.
Sandeep Saxena (verified owner) –
Superb Waveshare AW9523B IO Expansion Board, I2C! Value for money. Zbotic always delivers genuine products.
Krishna Joshi (verified owner) –
Okay Waveshare AW9523B IO Expansion Board, I2C. Functional but not outstanding. Serves its purpose.
Raghav Arora (verified owner) –
Great quality Waveshare AW9523B IO Expansion Board, I2C. Fast delivery from Zbotic. Highly recommended.
Abhishek Arora (verified owner) –
Love this Waveshare AW9523B IO Expansion Board, I2C. Build quality is excellent. Will order more from Zbotic.
Arun Saini (verified owner) –
Love this Waveshare AW9523B IO Expansion Board, I2C. Build quality is excellent. Will order more from Zbotic.
Manish Grewal (verified owner) –
Good Waveshare AW9523B IO Expansion Board, I2C. Works as described. Packaging could be improved slightly.
Hardik Parekh (verified owner) –
Perfect Waveshare AW9523B IO Expansion Board, I2C. Works as expected. Packaging was secure and product arrived safely.
Zara Pandey (verified owner) –
This Waveshare AW9523B IO Expansion Board, I2C is reliable and well-made. Recommended for electronics enthusiasts.
Jatin Sethi –
Good Waveshare AW9523B IO Expansion Board, I2C. Using it in my project. Minor issues but overall happy.
Shreyas Singh (verified owner) –
Excellent Waveshare AW9523B IO Expansion Board, I2C! Works perfectly as described. Very happy with this purchase.
Chitra Khurana (verified owner) –
Very satisfied with this Waveshare AW9523B IO Expansion Board, I2C. My project is working perfectly now.
Riya Dave (verified owner) –
Excellent product! My college project is a success thanks to this Waveshare AW9523B IO Expansion Board, I2C from Zbotic.