Decided to use arduino Uno because that’s what I had and more than 10x
Atmegas328p so I made the circuit design using EAGLE added the components:
MPU6050 Gyro Axx.
DHT Temp humidity sensor
Geiger counter for nuclear radiation sensor mSv
BMP for preassure and altitude
and many other sd card for black box saving all my data..etc
So made the Circuit design and came up with 3 circuits on of the top of other
as shield / sandwitch.
Etching process (photos) / instructions.
I made the PCB’s in EAGLE (free version) software using as base the ATmega328p microcontroller and adding the parts that I need, buttons, leds, regulators, pins for nRF24L01 ..etc
Using the transfer paper process I used laser printer and photo glossy paper to print the circuit then cut exactly the side of it and cutting as well a double side copper PCB.
after that carefully cleaning and placing the papers and locking them with paper tape, ironing it about 10 minutes both sides, pressing hard and carefully the sides. After 10 minutes placing the PCB in the water so the paper to get wet and being easy to peel.
Peel really carefully/gently the the paper, after cleaning all the paper is time for etching, using warm water making the process faster and a small sponge which is not in the picture carefully cleaning it.
At the end use a high sand paper sponge or a dish cleaner sponge to rub all the black ink / color on the PCB and finally you get a clean homemade ready PCB to use.
<<< press the arrows to see the process >>>
this is the 1st PCB only there is more.
As well managed to control the ESC and motor with the arduino and used
a cheap joystick and nRF24L01 PA as Radio Control, took the gaming joistick
modified it added and extra pot as speed control and programmed the joystick
with another circuit I made.
The airplane was made to fly and collect data in regions not accessible for
humans or hazard zones or just collect weather data. The airplane is capable
to collect, temperature, humidity, radiation (x,gama) in mSv, as well collecting
altitude data, GPS cordinates, gyro, gforce..etc
The airplane as well is capable to fly like autopilot just need to insert the
cordinates and it will go then come back, it’s self stabilized using MPU6050 and it’s hard to crash.
Total build/design time: 35~40 days. Took me like an year to build because I worked with this project only in my free time + I had to wait the components to arrive from china.
p.s. Sadly I don’t have more footage or info, I will keep looking in my project folder and update what else I got. Keep up, be optimists and always keep walking and make your dreams come true.