Can a Fridge Travel Into Space? Find Out How.

1. First, many

thanks to the SERVET PROYECT, for giving us the opportunity to launch the probe balloon into space.

Once mentioned this, let´s continue with the Instructable.

We are going to separate the project into 3 parts:

1. Hardware (Fridge).
2. Electronic hardware.
3. Software.

Keep in mind that temperatures are very extreme, therefore the materials has to be strong enough to resist them.

Let's see the component list we need for

the fridge.

HARDWARE FRIDGE

1. Polystyrene cooler box.
2. Thermal blanket.
3. Wood blue.
4. Loctitte Super Glue.
5. Rule.
6. Scissors.
7. Cutter knife.
8. Ropes (Max 30kg).
9. Tie wraps.
10. Links.
11. Duck tape.
12. Batteries (that resist temperatures at least of -40ºc below zero).
13. Powerbank. (that does not turn off due to low consumption).

ELECTRONIC HARDWARE

1. Two sets of ESP32 + LORA. + long-range antennas (frequencies selection are depending on the country).
2. GPS module.
3. Accelerometers and gyroscopes.
4. Optocouplers.
5. Lux sensor.
6. Barometer, altimeter.
7. Printed circuit board (own design).
8. Mini Photo and video camera.

SOFTWARE

PROBE

1. Accelerometer library.
2. Barometer library.
3. LORA Communications.
4. GPS.
5. LUX.

BASE STATION

1. LORA communications.
2. SSD1306 display library.

We take 3 pieces of the thermal blanket

and wrap around the outside of the fridge with wood glue. One for the bottom, another one for the top and the last one for the camera.

We fix the circuit board and build up
whit all the components except the lux sensor and the camera.

We will join the two buttons of the camera with the optocouplers, although in v1 they are not active, and it records continously.

FRIDGE.

First we will have to check that all the sensors are working fine with the LORA center board, once checked, we will record the final program.

BASE STATION.

Test the LORA screen and transmission.

Load the final program.

Connect the two elements and check the communication.

Finally, check the total weight to be sure that the project is within the maximum weight allowed per balloon.

ATTENTION, PLEASE CHECK THE LAWS OF YOUR

COUNTRY TO LAUNCH IT WITH AN HELIUM BALLOON! We are not responsibleof the consequences, its´ just a didactic manual.

THANKS!