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  • Users: zenniz
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  1. zenniz

    Need hardware recommendation for 12V to adjustable 5V~5.5V switching regulator

    I'm building an affordable portable phone charger that looks almost similar to the typical small Iphone charger with modular USB plug. My power source comes from a 12V regulated solar PV system. I need hardware recommendation for a 1A 12V to adjustable 5~5.5V (or more) switching regulator IC...
  2. zenniz

    Weird reply from Modbus energy meter controlled by mbed microcontroller

    I'm using an mbed micro-controller to retrieve register from Integra 1630 energy meter with modbus via a SIPEX SP485CS chip (RS485 level shiftier). All the component and connection are working correctly.(Double checked) Using the same program with different reigster, i'm able to get good modbus...
  3. zenniz

    Weird issue on energy meter's signal with modbus protocol

    I'm using Modscan to check the data from my Integra 1630 Energy meter. Often, i will only receive a register value of 0x00 while occasionally a good reply. I tried changing the scan rate from 100ms to 5s but nothing changes. The wire connected from my RS485 to the energy meter is less than...

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