Wemos and MQ-9 gas sensor
The MQ-9 Analog Gas Sensor has high sensitity to Carbon Monoxide, Methane and LPG. The sensor can be used to detect different gases containing...
Stripboard breakouts for your boards
As I mentioned in the post at http://www.esp8266learning.com/nodemcu-v2-lua-based-esp8266-development-kit.php I liked the NodeMCU board but would have preferred if the headers had not been soldered rather than...