启示录 3 9 22 Behold,I stand at the door and knock 12

20 Behold, I stand at the door and knock; If anyone hears my voice and opens the door, I will go into him, I sat with him and he with me. Donation from Rixtronix LAB for the people, please enjoy and share a coffee with us,thanks Support us by subscribing, thanks Let us know your tutorial request, Please visit, thanks : Entertainment for Engineer’s break time Rixtronix LAB Channel Electronic and vitamin shop Rixtronix LAB partner For modification please contact us, thanks Rixtronix LAB 正在寻找当地工程业务合作伙伴，请与我们联系，谢谢 PCBWay,PCB Prototype the Easy Way Solderin