Updated CH340G board

by luca
2 comments

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):

ch340g-10

The new board with all the components and a comparison with the first version:

ch340g-11

ch340g-12

 

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2 comments

zoobab Friday August 18th, 2017 - 06:34 PM

Too bad not all the pins are exposed, such as RTS, CTS, RI, etc…

Reply
luca Saturday August 19th, 2017 - 10:41 AM

Hi! I’m working on a new ver with RTS exposed so you can reset and program an Arduino board…

Reply

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