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Modbus is a simple protocol for serial communication between electronic devices.
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Which sensor bus best to use?
Thus, I decided to accompany each TOF by an Atmega8 acting as a gateway between the TOF and a Modbus (using a MAX485), which is managed by an ESP32 (the master). … Since I require fairly low latency (~10 reads / sensor / second) I am a bit disappointed by the Modbus RTU performance (mostly caused by the forced 1.75ms delay between frames). …