Laser receiver boards (labeled DS18B20 ) with "iso203 laser receiver

Other Hardware Sensors
1

Laser receiver boards (labeled DS18B20 ) with "iso203 laser receiver

For anyone using this with an ESP32 or Arduino, when reading the output pin from this board please remember to use:

pinMode(laserDetectPin,INPUT_PULLUP);

I was just using pinMode(laserDetectPin,INPUT); and could not get it working.

Also whilst the detector needs 5v, the lasers are typically 3v... take care :slight_smile:

I hope this helps others!

2

[quote="lido_666, post:1, topic:1348925"]
Laser receiver boards (labeled DS18B20
[/quote] ????

DS18B20 is a temperature sensor . Not a Laser receiver.

3

Maybe if you calibrate it well and shoot it with high power laser, you can detect laser from sudden temperature raise... :grinning:
Just kidding, OP needs to describe better what device he really has.

4

This link explains the problem referencing a temperature sensor.

5

Thank you so much for this info. I've been trying to figure out why my laser sensor wasn't outputting HIGH for days now and that fixed it.