This pack includes: 2 pcs 6-pin lengthen female headers 2 pcs 8-pin lengthen female headers They all have 2.54mm spacing between pins and they are the perfect height for clearing the USB-B connector and great for stacking multiple shields.Their long legs also make it enough to connect a shield to an Arduino Main Board.
he Grove - Gas Sensor(MQ2) module is useful for gas leakage detection (home and industry). It is suitable for detecting H2, LPG, CH4, CO, Alcohol, Smoke or Propane. Due to its high sensitivity and fast response time, measurement can be taken as soon as possible. The sensitivity of the sensor can be adjusted by potentiometer.
In our application, especially in some outdoor applications, we often need to use the lithium battery, lithium battery charging problem is a need to solve the problem, we designed this mini lithium battery charging board.
Board size is very small , It can use external power supply, such as solar or USB power supply. It uses CN3065 - a single lithium...