STM32 Interfacing PCF8574 Pin Expander LED Sound Level Indicator Over I2C
In this tutorial STM32 MCU is used to interface PCF8574 Pin Expander over I2C to control 8 LED sound level indicator using only 2 pins. Both hardware and software are explained in details. All tutorial materials are shared in the GitHub Repository
Patreon Web page:
/ usefulelectronics
GitHub Repository:
https://github.com/UsefulElectronics/...
Thingiverse Profile:
https://www.thingiverse.com/wardzx/de...
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