Max current draw from expansion port 5v
I'm currently using the expansion port from the IND.I/O to collect temperature measurements from a couple of 1-wire DS18B20 probes and its working great. I'll need to connect many probes on the same bus, maybe about 10-20. Is there any problem in having them all draw current from the 5v output pin in the expansion port?
Hi Rune, the IND.I/O gets its 5V for the MCU from an isolated DC/DC converter with a theoretical max current of 400mA; as far as i understand this is more than enough for even 10-20 of those sensors.
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|Asked: 4/19/17, 10:41 AM|
|Seen: 1578 times|
|Last updated: 4/20/17, 8:45 AM|