Some weeks ago I blogged about my project of a minimal board based on the CH340G chip.
After some tests, I slightly modified the project:
- I added two leds that blink when data are transmitted/received
- I added a jumper that allows to decide if you want power supply (5V) in the connector or not
- added a 10nF capacitor to make the circuit more stable.
Eagle files in my Github repository have been updated.
Here are some photos of the new PCB (the purple color should tell you that it was manufactured by OshPark):
The new board with all the components and a comparison with the first version: