Sensor for sound detection, the module has two outputs:
AO, analog output, real-time output voltage signal of the microphone
DO, when the sound intensity reaches a certain threshold, the output high and low signal
The threshold-sensitivity can be adjusted via potentiometer on the sensor.
[For more information](https://www.adrirobot.it/sensori/37_in_1/KY-037_KY-038-Microphone-sound-sensor-module.ht...
Laser Alarm System Trigger V2
By: Tyler Le
This is the second model of the receiving end of a DIY laser-based alarm system. The first one will not be published. Also, this circuit has been tested on a simulator [http://www.falstad.com/circuit/] and it seems to work great.
This alarm will normally have a laser shinin...
This is a small pcb that is designed to be used on an electric go-kart to display a stopwatch, motor RPMs, and cart speed as well as record this data on an SD card with a time stamp for analysis. The project is Arduino based and is ran off of 7-59 VDC or directly from a 5V source through any of the 5V or VIN pins on the data logger shield (this is not a protected input). It is designed to have w...
The KY-001 Temperature Sensor Module consists of a DS18B20 single-bus digital temperature sensor, a LED and a resistor.
[For more information](https://www.adrirobot.it/sensori/37_in_1/KY-001-Temperature-sensor-module.htm)