Peripherals

Content

this repo is used for development of electronics related sw used in autonomous drone hangar:

dual camera system with saved recordings rotation
thermo regulation script for activating heating and airflow electronic elements
- sht temperature and humidity sensors
- GPIO h-bridge and relay activation
a module for monitoring battery status has been added (see battery_readout)
GPIO schematic

GPIO Description
VCC (2, 4, 6, 35, 39, 37): 12 to 5V stepdown power supply
Dependencies (9, 17): power supply for SHT and more
Motor or thermoregulation H-bridge (29, 31, 32, 36): H-bridge acts as XOR gate, hence two pins are necessary for each element
Landing pad / hangar signal flag (33): this GPIO sees whether 3.3V is being return here, if so the rest of the hangar is connected to the landing pad
Peripherals Connection & Descritpion

Cameras
There are very few drivers and libraries available for rpi5, so do not switch the camera models.
Camera with manual focus is meant to be inside the hangar, the other outside (this one is connected with the rest of the hangar to the LP)
SHT
Both SHT sensors are connected to the LP
Battery Readout Module
This module is connected with the battery
On its connector is a white cable that acts as a signal flag for the LP
Stepper Motors Control
Arduino UNO is connected to the RPI via USB (COM)
There is GRBL firmware running to process gcode sent from the RPI and interpret it to the motor drivers (A4988) and endstop switches
This setup is yet to be tested (11. 9.)

battery readout module

all peripherals