New Modules - Testing

Initial board tests yielded promising results. The dual voltage regulators, EEPROM, oscillator, test points, programming, and USB components all work. Regulation was stable up to 18V DC.

RS-485 testing

We conducted exhaustive RS-485 connection testing, processing close to a million messages with no significant problems. We intentionally induced errors to verify detection systems worked correctly. Signal integrity regarding shape and slew rate performed well.

Minor issue

A small design flaw was identified — a hiccup involving tracing to an ESD protection diode array. The next revision will address this along with USB-C in vertical orientation and Schottky diode updates.

Manufacturing

The boards were fabricated by JLCPCB. Shipping was fast, components were perfectly placed, and there were no visible defects.