Newer versions of the Arduino SPI library support transactions and the setup is very easy. In fact, transaction support in the Arduino library is something [Paul] worked on himself, and gets ...

Teensy 4.0 and 4.1 Cortex-M7 development boards are to be manufactured by SparkFun Electronics. The boards are attractive ...

But we do appreciate the clean and orderly technique that [Eric Rogers] uses to add multiple SPI SRAM chips to an Arduino. The heavy lifting is done with a CPLD shield called the Amani 64.

You can only connect them to SPI components like the BME280 environment sensor, RC522 RFID module, and TFT display module. The I2C/TWI pins on the Micro are on D2 and D3. For Arduino beginners ...