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:
[checklist]
- 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.
[/checklist]
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:
Too bad not all the pins are exposed, such as RTS, CTS, RI, etc…
Hi! I’m working on a new ver with RTS exposed so you can reset and program an Arduino board…