Library provides basic nodes to work with gas sensor (MQ2) in Troyka module formfactor. Is useful for gas leakage detection. It is suitable for detecting H2, LPG, CH4 or Smoke.
TSL2591 High Dynamic Range Digital Light Sensor. Wraps https://github.com/adafruit/Adafruit_TSL2591_Library. Datasheet: https://cdn-learn.adafruit.com/assets/assets/000/078/658/original/TSL2591_DS000338_6-00.pdf?1564168468
This is a simple low-frequency PWM-write made from nodes of the standard library. I use it for ESP32 because the standard pwm-write node doesn't work. The effective frequency is 100-200 Hz. Duty cycle varies from 16...83%. Also accepts discrete 0s and 1s. I checked the result of the node's operation with an oscilloscope.