Administrator Is the rbAmp module isolated from mains? Yes — there's a galvanic isolation barrier inside between the mains side (voltage sense, CT input) and the low-voltage side (I²C). The module's GND is the host's ground, not mains neutral, so wiring t... faq hardware safety 30 июл. 2026 г. FAQ
Administrator Do I need external I²C pull-up resistors for rbAmp? For a single module , no — the rbAmp PCB carries built-in 4.7 kΩ pull-ups on SDA/SCL to 3.3 V. For a multi-module bus , keep the pull-ups on one module and disable them (a solder jumper) on the rest, ... faq hardware I2C 30 июл. 2026 г. FAQ
Administrator Why is rbAmp 5 V-powered but the I²C bus is 3.3 V? The module has its own microcontroller doing the measurement, and it needs clean, stable power to keep the ADC readings accurate. So the module takes 5 V on VCC and runs it through an on-board low-noi... faq hardware I2C power 30 июл. 2026 г. FAQ
