Some fixes in the docs

This commit is contained in:
Oleg Kalachev
2026-05-10 02:33:03 +03:00
parent b62f2f9427
commit 34c6993842
2 changed files with 6 additions and 8 deletions
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@@ -72,7 +72,7 @@ Additional articles:
|Type|Part|Image|Quantity|
|-|-|:-:|:-:|
|Microcontroller board|ESP32 Mini|<img src="docs/img/esp32.jpg" width=100>|1|
|IMU (and barometer¹) board|GY91, MPU-9265 (or other MPU9250/MPU6500 board)<br>ICM20948V2 (ICM20948)³<br>GY-521 (MPU-6050)³⁻¹|<img src="docs/img/gy-91.jpg" width=90 align=center><br><img src="docs/img/icm-20948.jpg" width=100><br><img src="docs/img/gy-521.jpg" width=100>|1|
|IMU (and barometer¹) board|GY91, MPU-9265 (or other MPU9250/MPU6500 board)<br>ICM20948V2 (ICM20948)<br>GY-521 (MPU-6050)|<img src="docs/img/gy-91.jpg" width=90 align=center><br><img src="docs/img/icm-20948.jpg" width=100><br><img src="docs/img/gy-521.jpg" width=100>|1|
|Boost converter (optional, for more stable power supply)|5V output|<img src="docs/img/buck-boost.jpg" width=100>|1|
|Motor|8520 3.7V brushed motor.<br>Motor with exact 3.7V voltage is needed, not ranged working voltage (3.7V — 6V).<br>Make sure the motor shaft diameter and propeller hole diameter match!|<img src="docs/img/motor.jpeg" width=100>|4|
|Propeller|55 mm or 65 mm|<img src="docs/img/prop.jpg" width=100>|4|
@@ -152,18 +152,16 @@ You can see a user-contributed [variant of complete circuit diagram](https://mir
|-|-|
|GND|GND|
|VIN|VCC (or 3.3V depending on the receiver)|
|Signal (TX)|GPIO4¹|
|Signal (TX)|GPIO4|
*¹ — UART2 RX pin was [changed](https://docs.espressif.com/projects/arduino-esp32/en/latest/migration_guides/2.x_to_3.0.html#id14) to GPIO4 in Arduino ESP32 core 3.0.*
* Optionally connect the battery voltage divider for voltage monitoring to any ADC1 pin (e. g. *GPIO32* on ESP32, *GPIO3* on ESP32-S3).
* Optionally connect the battery voltage divider for voltage monitoring to any ADC1 pin (e. g. *GPIO32* on ESP32, *GPIO3* on ESP32S3).
ESP32 and ESP32S3 [can measure](https://docs.espressif.com/projects/arduino-esp32/en/latest/api/adc.html#analogsetattenuation) up to 3.1 V and ESP32S3/ESP32C3 can measure up to 2.5 V, so choose the voltage divider resistors accordingly.
ESP32 and ESP32-S3 [can measure](https://docs.espressif.com/projects/arduino-esp32/en/latest/api/adc.html#analogsetattenuation) up to 3.1 V and ESP32-S3/ESP32-C3 can measure up to 2.5 V, so choose the voltage divider resistors accordingly.
## Resources
* Telegram channel on developing the drone and the flight controller (in Russian): https://t.me/opensourcequadcopter.
* Official Telegram chat: https://t.me/opensourcequadcopterchat.
* Official Telegram chat: https://t.me/opensourcequadcopterchat (English / Russian).
* Detailed article on Habr.com about the development of the drone (in Russian): https://habr.com/ru/articles/814127/.
## Disclaimer
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@@ -170,7 +170,7 @@ After this setup, you should see the battery voltage in QGroundControl top panel
2. Check the attitude estimation: connect to the drone using QGroundControl, rotate the drone in different orientations and check if the attitude estimation shown in QGroundControl is correct. Compare your attitude indicator (in the *large vertical* mode) to the video:
<a href="https://youtu.be/yVRN23-GISU"><img width=300 src="https://i3.ytimg.com/vi/yVRN23-GISU/maxresdefault.jpg"></a>
<a href="https://youtu.be/yVRN23-GISU"><img width=300 src="https://i3.ytimg.com/vi/yVRN23-GISU/maxresdefault.jpg"></a>
3. Perform motor tests. Use the following commands **— remove the propellers before running the tests!**