Ammonia Gas Sensor MQ137 emg TB6600 stepper driver with Arduino

TB6600 stepper driver with Arduino tutorial

Also the temperature protection feature

Non-inverting digital inputs are TTL and CMOS compatible

This is the Motor Mount Plate for nema 23 stepper motors

Let me know when you're ready for the second display

Ammonia Gas Sensor MQ137 emg TB6600 stepper driver with ArduinoThe MQ 137 is an Ammonia (NH) gas sensor . Sensitive material of MQ137 gas sensor is SnO2, which with lower conductivity in clean air. When NH3 gas exists, the sensors conductivity gets higher along with the gas concentration rising. User can convert the change of conductivity to correspond output change voltage of gas concentration through a simple circuit. MQ137 gas sensor has high sensitivity to NH3 gas, also can monitor organic amine such as