[Arduino]2 Relay Module

 不錯的文章:

Interface Two Channel Relay Module with Arduino
https://lastminuteengineers.com/two-channel-relay-module-arduino-tutorial/

relay spec:
http://j5d2v7d7.stackpathcdn.com/wp-content/uploads/2015/10/SRD-05VDC-SL-C-Datasheet.pdf

[電學]線性穩壓 IC 電路設計

 

不錯的文章介紹:

https://makerpro.cc/2021/05/electric-power-system-design-part7/?utm_source=GoDaddy&utm_medium=email&utm_content=%E3%80%90%E7%9F%A5%E8%AD%98%E5%85%85%E9%9B%BB%E5%A0%B1%23192%E3%80%91%E7%A1%AC%E9%AB%94%E7%94%A2%E5%93%81%E4%B8%8A%E7%BE%A4%E5%8B%9F%E8%AA%B0%E8%83%BD%E8%84%AB%E7%A9%8E%E8%80%8C%E5%87%BA%3F%2F+5G%E9%A0%98%E8%88%AA%E5%89%B5%E6%96%B0%E6%87%89%E7%94%A8%E7%AB%B6%E8%B3%BD%E7%B7%9A%E4%B8%8A%E8%AA%AA%E6%98%8E%E6%9C%83&utm_campaign=20210519_m163276839_%E3%80%90%E7%9F%A5%E8%AD%98%E5%85%85%E9%9B%BB%E5%A0%B1%23192%E3%80%91%E7%A1%AC%E9%AB%94%E7%94%A2%E5%93%81%E4%B8%8A%E7%BE%A4%E5%8B%9F%E8%AA%B0%E8%83%BD%E8%84%AB%E7%A9%8E%E8%80%8C%E5%87%BA%3F%2F+5G%E9%A0%98%E8%88%AA%E5%89%B5%E6%96%B0%E6%87%89%E7%94%A8%E7%AB%B6%E8%B3%BD%E7%B7%9A%E4%B8%8A%E8%AA%AA%E6%98%8E%E6%9C%83&utm_term=_E8_AA_AA_E6_98_8E_E9_81_B8_E7_94_A8_E4_B8_80_E9_A1_86_E7_B7_9A_E6_80_A7_E7_A9_A9_E5_A3_93+IC+_E6_99

opencv 人臉辨識

 https://hackmd.io/H7Es3BumQiK08m74itkaSA