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# Seventh Lichuang Electric Competition# Attitude display based on N32G430C8L7 microcontroller

Overview

1. Introduction to project functions

The USB ammeter made based on N32G430C8L7+INA199 has an accuracy of 1%. You can check the current when USB is working. It only supports 5V charging and does not support fast charging.

2. Project attributes

Referring to the official case from the National Science and Technology Training Camp, the LDO was replaced with AMS1117 3.3, and the USB female head model was changed (see the schematic diagram for details).

3. Open source agreement

GPL 3.0

4. Hardware part

Schematic diagram

5. Software part

Use the USB ammeter program provided by the training camp to burn the ST-LINK + KEIL5 software.

6. Physical pictures

7. Additional items

A minimal system board based on N32G430C8L7 was produced, using the TYPE-C interface for power supply, adding an external crystal oscillator, and leading to the SW interface and serial port respectively.

At present, the real-time attitude display program based on N32G430 has been burned into the training camp. It is connected to MPU6050 and 0.96OLED modules. After testing, it can display the attitude in real time.

Existing problems: The OLED screen does not light up every time when the power is turned on. You need to press the reset button to light up. At first, the screen displays snowflakes, but after a while, it displays the normal posture. I don’t know if this is normal.

Schematic:

Physical map:

Design Files

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Update:2025-05-21 07:55:22

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