ESP32 Quadcopter (Flight Control)

1. Circuit hardware description
Main control chip ESP32-S3
Gyroscope and accelerometer MPU6050
Barometer BMP280
2.4G wireless module NRF24L01 (or SI24R1)
Power indicator Red LED*1
Status display Blue LED*1
 
Finished product display
2. The program
is not open source because it is not yet perfect.
3. Description
Aircraft frame description
1. The flight control is adapted to the 8520 frame, and its supporting motors and propellers
 
2. The flight control and the frame need a shock absorber
3. Use 1s power battery (length 65 width 16 thickness 7) Take-off weight is about 50 grams
 
Welding instructions
1. Due to insufficient space 2.4G modules are stacked on esp32
2. Due to insufficient space, a CD45 inductor needs to be welded horizontally at the CD32 inductor position on the PCB
 
Download circuit description
1. The flight control does not have any built-in download circuit. The program can only be downloaded by connecting it to the downloader through the lead-out interface
Method 1: Manual download using USB to serial port downloader (download is troublesome but the circuit is simple)
Downloader Flight control
3.3V-------------3.3V
GND-------------GND
GND------------ I0
empty---------------EN (manual download does not require connecting EN)
RXD-------------TXD TXD
-------------RXD
Before downloading, plug in the I0 line and press the reset button on the flight control to enter the download mode.
After the download is complete, unplug the i0 line and press the reset button on the flight control to start running.
 
Method 2: Build an automatic download circuit without any switching (downloading is simple but the circuit is troublesome)
Circuit diagram:
Use a perforated board for flying wire welding or design a PCB by yourself.
 
Note that
the flight control circuit is dense, and the user needs to have a certain foundation in circuit welding.
Electronic amateurs cannot guarantee the standardization of the PCB layout design. No other problems have been found during use. If you have any questions, please leave a message in the comment area below