Environment Sensor BME680
Bought a Bosch BME680 which measures VOCs(Volatile Organic Compounds) such as paints, chemicals and glues.
John S. is interesting in an LPG detector. Here is a chart describing various categories of gas sensors
CODE GAS SENSITIVITY
MQ–2 Methane, Butane, LPG, smoke MQ–3 Alcohol, Ethanol, smoke MQ–4 Methane, CNG gas MQ–5 Natural gas, LPG MQ–6 LPG, Propane, Butane MQ-7 Carbon Monoxide MQ-8 Hydrogen MQ–9 Carbon monoxide, Flammable Gasses MQ–131 Ozone MQ–135 Benzene, Alcohol, Smoke MQ–136 Hydrogen Sulfide MQ–137 Ammonia MQ–138 Benzene, Toluene, Alcohol, Acetone, Propane, Formaldehyde, Hydrogen MG-811 Carbon Dioxide
Different types of gas sensors:
INA260 current sensor
Rob C. show and tell
Told as about practical Raspberry Pis on the shop floor. He also described his boiler/steam engine project.
128x128 colour tft-lcd display for arduino
Jaycar DuinoTech job.
Based on ST7735.
Apparently, there is a rpi library