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+--- Thread: A16 and HC-SR04 (/showthread.php?tid=7029)
A16 and HC-SR04 - MnM - 11-07-2024
Hi,
I have an A16 board and I will like to add 2 x HC-SR04 devices to it.
I understand how to configure the pins in ESPHome so all is good on that side.
My question is more the electrical part - the HC-SR04 units require 5v each.
On the A16 schematics I cannot see anywhere where that outputs 5v.
I see in another thread (https://www.kincony.com/forum/showthread.php?tid=6634&page=2&highlight=HC-SR04) that the 433MHz receiver data pin on PCB produces 5v - is that the middle PIN that produces 5V?
And will I be able to power 2 or more (4?) x HC-SR04 units from it?
Thanks.
RE: A16 and HC-SR04 - admin - 11-07-2024
Yes, 433M receiver have pin with 5V. i think if 2pcs of HC-SR04 should be OK, you can test.