王达业

Remote control based on STC89C52

Overview

Note that the IO port of 89C52 outputs 5V, so a resistor must be added between the IO ports of the connected 24L01, 10k is enough. I didn't add any resistors to mine. The direct-plug type is fine, but the patch type is prone to damage without a resistor.
89C52 does not have a built-in AD module and requires an AD chip. I used PCF8591.
I soldered the only CH340, so I used a Dupont cable to connect the downloader for programming.
It is strongly not recommended to use STC89C52. It is recommended to use a 3.3V main control chip with built-in AD for remote control.
You can use it as a reference, but it is not recommended to use it directly.

Design Files

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Update:2025-05-08 23:55:58

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