Uploaded November 2025 | Updated September 2026, 9 hours ago

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In this video, I clarify the differences between FSPI and HSPI on an ESP32-S3 microcontroller, and I show you how to use them. I use an ADS1256 and an ILI9341 display to demonstrate the two separate SPI buses.

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ESP32-S3 DevKitC-1 compatible board: https://s.click.aliexpress.com/e/_c4lYWM9f
ILI9341 LCD display (SPI): https://s.click.aliexpress.com/e/_c3W9AzXf
ADS1256 24-bit ADC: https://s.click.aliexpress.com/e/_DEH1gIB
Breadboard: https://s.click.aliexpress.com/e/_DloYYXN
100 g load cell: https://s.click.aliexpress.com/e/_c2QaTobP

Read my article: https://curiousscientist.tech/blog/esp32-s3-multiple-spi-buses-spi-fspi-hspi
Relevant parts: https://curiousscientist.tech/tools
ADS1256 library: github.com/CuriousScientist0/ADS1256