1. Bhavik700

    Isolation requirement for Voltage measurement

    I am developing IoT device using ESP32. I am using ESP32 along with ADS1115 for voltage measurement of my equipment. My electrical device operates with following parameter : ~0-5 V DC , 25 Amp with constant current mode adjustment prior to operation. I want to measure this voltage change...
  2. Tiong

    SGX-4H2S-100 Industrial Hydrogen Sulphide (H2S) Sensor

    Greetings everyone! I am currently designing a sensor array that will be used to detect the gases released by the durian. One of the sensors used is the SGX-4H2S-100 Industrial Hydrogen Sulfide (H2S) Sensor. From the datasheet, it says that the output signal is 1200+-250 nA/ppm. Thus, may I ask...
  3. S

    Raspberry Pi Conversion of ADS1115 output to PPM

    Hi! How do you convert an ADC reading from an MQ3 sensor using ADS1115 to ppm? I am trying to measure the amount of alcohol. This is the link to the datasheet of the MQ3 sensor https://www.sparkfun.com/datasheets/Sensors/MQ-3.pdf . I am getting ADC values which ranges from 3000-4500 when not...