mOkRL6cE

Color circuit board

Overview

This system implements buttons, LEDs, OLEDs, a photosensor, a relay, a temperature and humidity sensor, a buzzer, and a sliding rheostat based on an ESP32C3 minimum system board
. The LED module uses 0805-packaged LEDs, suitable for beginners.
The OLED module uses a 4-wire IIC communication OLED; due to the limited pins in the ESP32C3 minimum system, a lower-pin OLED is used.
The photosensor uses a photoresistor with a 10K resistor in series for reading voltage values.
The temperature and humidity sensor uses a cost-effective DHT11 sensor, offering accurate readings and single-bus communication.
The buzzer is an active buzzer, simple and easy to operate.

Finally, color silkscreen printing enhances the overall appearance.

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

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.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2026-03-27 00:35:30

【Altera SoC Experience Tour】+ How to say goodbye properly
I was planning to drive a camera module, but I couldn't debug it successfully after a long time. The OV9655 module was left over from the Qingke event. The event was about to end, so I planned to work
【Help】About 18B20
I made a DS18B20 program. It can read data when it is alone, but when it is used as a subroutine, it reads FF. What's wrong? The clock is the same.
Source code please, how to implement the sharing of data collected from the serial port by multiple dialog boxes of Tab Ctrl?
I have a project that needs to be completed on the 28th. It is urgent. I have not implemented the Tab Ctrl multi-dialog box to share the data collected from the serial port. There are four dialog boxe
How do you solve the problem of mouse jumping randomly during serial port communication?
I wonder if you have ever encountered the problem of the mouse pointer jumping uncontrollably when debugging serial communication. How do you solve such a problem? :congratulate: In the past, this pro
Use 2030 to make an audio amplifier
Our teacher asked us to make an audio amplifier. I thought about it for a long time, looked for some, and finally chose to use TDA2030. But the teacher said that we also need to adjust the treble, mid
(Newbie) WindRiver workbench cannot connect to vxsim
I created a vxsim connection with the default settings. Could you please help me find out what the problem is?I saw the error message and it seems that wdbpipe is not set, but the connection created b

Datasheet More

Circuits More