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+--- Thread: KC868-A16v3 integration with 5V sensors and loads ? (/showthread.php?tid=9371)
KC868-A16v3 integration with 5V sensors and loads ? - Alx - 05-29-2026
Hello,
I am planning a project based on the KC868-A16 v3.1 (REV:1.6) board. My peripheral types include 5V digital sensors (TTL/CMOS) and low-power 5V loads.
Could you please help me with the following technical questions:
- LO0 and LO1 with 5V: The official documentation specifies 12V/24V for the LO0 and LO1 power supply. Is it safe and functionally possible to apply a 5V external voltage to these specific channels instead?
- Onboard 5V VCC Usage for LO0 and LO1: Can I use the internal 5V VCC rail from the board to power the LO0 and LO1 loads? The total load current will be under 1A, which is within the XL1509-5 regulator capacity. Are there any internal limitations preventing this?
- 16 Digital Inputs with 5V logic: How can I modify all 16 Digital Inputs (INPUT1 and INPUT2) to safely and accurately read active 5V digital signals (TTL/CMOS)? What is the exact hardware modification procedure for the PCB?
Thank you.
RE: KC868-A16v3 integration with 5V sensors and loads ? - admin - 05-29-2026
1: A16v3 mosfet output at least >9V DC.
2: can't use by 5v DC output.
3: you can try whether can detect by 5V. because >5v is logical FALSE.
RE: KC868-A16v3 integration with 5V sensors and loads ? - rosnoteh - 06-15-2026
(05-29-2026, 12:31 PM)Alx Wrote: My peripheral types include 5V digital sensors (TTL/CMOS) and low-power 5V loads.
What digital sensors and low-power 5V loads.