ParleysParleys 
The latest version of Parleys is 1.0 on Mac Informer. It is a perfect match for E-mail in the Communication category.
Parleys is a powerful serial communication app designed for engineers, makers, and hobbyists working with everything from Arduinos to Xbee modules. Built for clarity and speed, it lets you manage multiple device streams at once—ideal for rapid prototyping, hardware testing, and multi-board debugging. This tool also supports high-traffic workflows such as a best serial port terminal app setup, an Arduino debugging tool for beginners, and a multi-device serial monitor environment.
Open connections instantly, view outputs side-by-side, and save complete session documents so you can return to precise configurations with a single tap. Whether you're fine-tuning embedded systems or running continuous data logs, Parleys delivers a smooth, efficient workflow with zero clutter.