What's the purpose of hardware SPI pins in ESP8266 and other dev boards?

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  • arduino-LoRa

    An Arduino library for sending and receiving data using LoRa radios.

    • Hello, I'm working on a telemetry project for my greenhouse and I run of GPIOs to use. The easiest way out to free some of them would be to use the hardware SPI pins instead of the software ones, but unfortunately, they don't work in Ra-01 LoRa lib that I use. Why there are GPIOs on the development board that you practically can't use (or at least that's my understanding)?

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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