Recently, you might have noticed a flurry of CH552 projects on Hackaday.io – all of them with professionally taken photos of neatly assembled PCBs, typically with a USB connector or two.

Here’s a CH552G-based USB Blaster project from [nickchen] in ... two LEDs, a button for CH552 programming mode, and even a UART header inside the case. There’s an option to add level shifter ...