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- 23 Jul 2017, 14:58
- Forum: ESP Easy: Hardware
- Topic: HC-SR501 PIR - stop false positives?
- Replies: 47
- Views: 103055
Re: HC-SR501 PIR - stop false positives?
The solution I found to this problem is use a 10k resistor between the PIR sensor output and the input pin of the ESP8266. I tried all of the suggestions above (caps, switching off the wifi etc) but only the resistor worked. Another benefit is that Wifi can now be connected at the start (and disconn...