Abstract: This work presents a cost-effective approach to implementing programmable logic controllers (PLCs) for educational use, using commercial microcontrollers (Arduino UNO, ESP8266 NodeMCU) and a ...
The RootBoard is a handheld computer kit with a 3.5 inch color display, a 70-key thumb keyboard complete with function keys, and a built-in speaker plus what looks like a decent s ...
I built a whole-home ad blocker with a $7 ESP32-S3 board - and it took just minutes ...
We have previously written about various industrial Raspberry Pi systems and gateways that come with RS-485 built in, but we had yet to cover a dedicated RS-485 Raspberry Pi HAT. To fill this gap, ...
Build Your Own Coffee Roaster shows how to create a DIY coffee roaster using a Raspberry Pi, standard components, and open-source software. Home coffee roasting doesn’t have to mean expensive ...
Abstract: This paper presents a high performance 4-layer communication architecture for a smart micro-grid testbed which consists of a 2 kVA Distributed Energy Resource (DER) inverter with PV and ...
Recently, [Edward Schmitz] wrote in to let us know about his Hackaday.io project: SigCore UC: An Open-Source Universal I/O Controller With Relays, Analog I/O, and Modbus for the Raspberry Pi. In the ...
The Kappa4310Rasp is a Raspberry Pi-compatible Modbus RTU HAT designed to evaluate the IS4310 Modbus RTU Slave stack chip. This allows engineers to simulate sensor and actuator interactions using a ...
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