35etv

STC8051U Multifunctional Development Board

Overview

Features: Onboard LCD1602 and 0.96-inch OLED dual display, four independent buttons, 8-digit LED, DHT11 temperature and humidity sensor, 1-digit 0.28-inch digital tube, 9mm passive buzzer, and CH340 download circuit.
Highlights: Each I/O port is equipped with pin headers and sockets, as well as VCC and GND for easier connection. Chip replacement is convenient using locking sockets. Includes an AMS1117 voltage regulator and filter circuit. Type-C allows direct program download without an external programmer (a programmer interface is provided in the upper right corner; please turn on the main chip power switch before use, otherwise the cold-start programmer cannot be used). The LCD1602 backlight has a separate switch,
suitable for beginners. Onboard functions are limited; besides the three interfaces, all have power ports for connecting external modules and circuits. The attached main.hax file is a demonstration program with limited functionality. This is
my first time participating in an electronic design competition, so there may be errors. Please point them out. Thank you.

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2026-03-26 14:52:55

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