I made my own Arduino UNO. Since it is open source, anyone should be able to create it.
$2 (2 layers) & $5 (4 layers) PCB: https://jlcpcb.com/v
Save $5 off with the discount code "JLCPCBJP".

Class D amplifier (Details of hot plate reflow) →    • 【電子工作】超小型D級アンプの作り方 | HOW to make a ve...  
Twitter:   / ichiken_make  

★ Equipment used (including amazon associate link)
Arduino (genuine product) https://amzn.to/318AGza
Arduino (compatible) https://amzn.to/3hRUk8v
★ Playlist
Raspberry Pi    • ラズベリーパイ  
Electronic work    • DIY/電子工作  
Electrical explanation    • 電気の解説  

★ Business inquiries: [email protected]
★ Click here for channel registration    / @ichiken1  

music: Kevin MacLeod, The Big Beat 80's.