great formfactor easy to use

great formfactor easy to use

great formfactor easy to use

super

super

super

Very Nice

Very Nice

Very Nice

Well packaged and surprisingly good delivery time, considering Spring Festival (18 calendar days from order). The biggest issue with this module is the lack of available documentation on-line. The basic idea is simple; set GPIO ports to select a row and column and then check the button status via another GPIO. The rest is just detective work. In summary, I am happy to recommend this item if you enjoy experimenting and problem solving. If that's not you, maybe give this a miss.

Well packaged and surprisingly good delivery time, considering Spring Festival (18 calendar days from order). The biggest issue with this module is the lack of available documentation on-line. The basic idea is simple; set GPIO ports to select a row and column and then check the button status via another GPIO. The rest is just detective work. In summary, I am happy to recommend this item if you enjoy experimenting and problem solving. If that's not you, maybe give this a miss.

Well packaged and surprisingly good delivery time, considering Spring Festival (18 calendar days from order). The biggest issue with this module is the lack of available documentation on-line. The basic idea is simple; set GPIO ports to select a row and column and then check the button status via another GPIO. The rest is just detective work. In summary, I am happy to recommend this item if you enjoy experimenting and problem solving. If that's not you, maybe give this a miss.