Inputting multiple bits of information using a single entry pin of a microcontroller without the complexity of UARTs can prove useful. Such a scheme could allow scanning of a keyboard, mode switches, ...
A recent Texas Instruments insert in an engineering magazine describes the SN65HVS882 chip that can accept eight parallel inputs and serialize the digital information for an MCU's SPI port. Nothing ...
Here’s an interesting article about reading data from shift registers using less than three pins. 74HC165 shift registers are a popular choice for adding inputs to a microcontroller. They have a ...
The driver supports SPI control and emergency parallel inputs for limp-home mode, even without digital supply, suiting it for space-constrained automotive applications. An input mapping function makes ...
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