The second modification of Aliexpress Si4732 receiver. Level converter adding.
5V to 3.3V level converter adding
The second modification of my Aliexpress Si4723 receiver is adding 5V to 3.3V level converter between Arduino NANO and Si4732 - thanks Rakhmat Al Varis for help. Si chip is connected directly to the Arduino and it is not good for 3.3V Si4732. I interrupted SDA, SCL and RESET lines between Si and Arduino and inserted very cheap level converter.
The breaking of three pcb lines between Arduino and Si4732 is needed - look at the schematic diagram and picture of PCB.
Komentáře: 8:
I am facing this similar problem can you give me the connection diagram please thanks
I added connection diagram to my blog.
What is the reason? Is it prevent mod or does it makes some issues with mod?
What is the reason? Is it prevent mod or does it makes some issues with mod?
What is the reason? Is it prevent mod or does it makes some issues with mod?
There are 5V level in Arduino outputs and Si4732 is 3.3V. The level converter prevents to damage Si4732.
Thanks for adding the connection diagram 👍👍👍
You are welcome.
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