ESP32 dev board from Az-Delivery. soldered on a dev breadboard with some wires to a MAX3232. Both devices are socketed to the breadboard for easy replacement. When not connected to the computer (99.9% ...
If you’ve spent any time on a factory or plant floor, it is a good bet you’ve run into PLCs (Programmable Logic Controllers). These are rugged computers that do simple control and monitoring functions ...
An Arduino sketch for robustly reading the balance and transaction history from a Dhaka MRT RapidPass card using a PN532 NFC module. FMR2 is an unofficial, Opensource Arduino/ESP32 project designed ...
Abstract: The paper provides detailed information about the design and implementation of the universal DSP module for simultaneous multiple RS232 communication with synchronous measurements reading ...
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