Lemontree

[To be verified] ESP32-C3 pocket development board verification version

Overview

Engineering version: 1.1V

Some circuits have design flaws and need to be modified.

This project is a development board based on the ESP32-C3FH4 chip. The board integrates SHT30 temperature and humidity sensor, BMP280 air pressure sensor, BH1750 sensor, WS2812 RGB light, 4Pins oled screen interface, and some pins are lead out, which is convenient for secondary development and is very suitable for Engineering verification, learning to use.

Engineering features

1.Type-C dual port: USART0 is used for program download and debugging, USART1 is suitable for built-in download and USB function.

2.Ch340k is used as a serial port chip for program download and program debugging.

3. Lead out 10 IOs (all will be lead out in subsequent revisions), multiple voltage power supply interfaces, convenient for external module expansion connections, etc.

4. Built-in 2 user buttons to facilitate users’ subsequent development and use.

5. A WS2812 lantern, used to learn PWM, etc. (acts as running water lamp)

6. The onboard I2C can be connected to 4Pins OLED, SHT30, BMP280, BH1750 sensors.

7. Reserve a 1.54-inch screen (the screen is good).

8. You can use C3 or the chip version that comes with Flash. The board reserves the Flash pad position.

9. The biggest feature is its compact size, which supports loading of 88x60x20 plastic box (pocket development board).

Project pictures:

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:2025-06-20 02:23:41

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