MQ-2

Gas sensor for experiments; not safety-certified.

Tutorial / documentation

Sensors

First tests with MQ-2

  1. Identify the exact MQ-2 variant, package and manufacturer documentation.
  2. Identify power, ground and signal pins in the documentation. Assemble the circuit with power disconnected.
  3. Follow the manufacturer’s evaluation circuit. Use a current-limited low-voltage supply and the recommended logic levels.
  4. Mesurez les signaux d’entrée et de sortie. Comparez leur comportement à la fonction : capteur de gaz pour expériences, sans certification de sécurité.

MQ-2

Gas sensor for experiments; not safety-certified.

  • Identify the exact MQ-2 variant, package and manufacturer documentation.
  • Identify power, ground and signal pins in the documentation. Assemble the circuit with power disconnected.
  • Follow the manufacturer’s evaluation circuit. Use a current-limited low-voltage supply and the recommended logic levels.
  • Mesurez les signaux d’entrée et de sortie. Comparez leur comportement à la fonction : capteur de gaz pour expériences, sans certification de sécurité.
Technical documentation