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KC868-A16 HC-SR04

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KC868-A16 HC-SR04
damian87ew Offline
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#1
04-28-2025, 09:59 AM
I want to connect HC-SR04 to GPIO02 and GPIO15, but ESP does not see it
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#2
04-28-2025, 10:40 AM
maybe HC-SR04 output signal level is 5V TTL, ESP32 ready by 3.3v level.
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damian87ew Offline
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#3
04-28-2025, 10:53 AM (This post was last modified: 04-28-2025, 11:49 AM by damian87ew.)
But the RF pins are powered by 5V

[Image: xxjgxzmuck]https://files.fm/u/xxjgxzmuck
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damian87ew Offline
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#4
04-28-2025, 12:00 PM
(04-28-2025, 10:40 AM)admin Wrote: maybe HC-SR04 output signal level is 5V TTL, ESP32 ready by 3.3v level.

https://files.fm/u/xxjgxzmuck
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