SX1509, GPIO expander 16 I/O for Arduino, SparkFun BOB-13601

Brand: Sparkfun
Product Code: AN-11147
Availability: 4-6 business days
Planned delivery date after ordering: 2025-05-02
12.20€
Ex Tax: 10.08€

Qty

Expansion board with 16 GPIOs with I2C interface, which means that to make full use of all pins, it is sufficient to connect two wires to the microcontroller. SX1509 also has interfaces PWM, allowing to, e.g. control the brightness of the LEDs. The board is similar to the multiplexer or "mux", because it allows you to get more IO with fewer pins. It has the built-in motor of a keyboard that allows you to connect up to 64 buttons of matrix 8x8. Board is powered with voltage from 1.3 V to 3.6 V (it tolerates 5.5 V). The device works with Arduino and other microcontrollers of IO.

Specification:

  • Supply voltage: from 1.3 V to 3.6 V (tolerance from 5.5 V to 15 mA for all IO)
  • 16 channels of IO
  • Built-in keyboard driver that supports up to 64 keys (8x8 matrix)
  • I2C interface of 400 kHz - possibility of changing the address

Useful links:
Manufacturer website
Manual