Microswitch Board

In the Microswitch Board we have an microswitch witch we detect the obstacle's , the evacuation zone's wall , etc (you can learn more information about it in our programming blog)

Also we detect our alive and dead victim's with this board , we twisted aluminium foil so it will be conductive.

And we can now that the victim is dead or no because dead victim's aren't conductive but alive victim's are, and there is a lots of ways to detect the alive or dead victims for example you can detect them with color but we detect them with their conductivity or un conductivity.

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Sensor Board

This board is located on the bottom of the robot and has the task of following the line. Sensor board includes: IR Sensor's Apds 9960's Multiplexer's Ams1117 We used 34 IR sensor's to follow the line, It has a receiver and transmitter , infrared waves are from 300GHZ to 430 GHZ and the length of these waves are from 1mm to 740nm. We could use a lots of things to detect red and green color but we choose APDS9960 Because it was more accurate and cheaper. We used two of them in the robot. Also we used multiplexer's because we didn't have enough pin's, 4051 and 4052 multiplexer's. We used Ams1117 because the input voltage of our color sensor (APDS9960) is 3.3Volts and our battery's are 12Volts so we need to reduce the voltage, you may ask yourself why didn't we use Resistor's to decrease the voltage , because it will be destroyed and we should use a lots of them and it will occupy a lots of space and the main reason is regulators make our voltage...

LCD Board

We used this board to connect our LCD Display (TFT ST7735R) to our robot, Also this board has a gyroscope (GY-25) and a buzzer. The gyroscope is because we need to know if we are on a ramp Our gyroscope (GY-25) can communicate two different type of communication protocol's I2C and USART , we used USART communicating protocol, the accuracy of this module is up to ± 180 degrees.

OpenMV

We had a lots of options to use for detecting the color of Evacuation Points , like OpenMV Camera , APDS9960 , Pixy Camera , We used OpenMV h7 plus to detect the color of the Evacuation Point in the Evacuation Zone. The OpenMV that we used has a 5 megapixel camera and supports several communication protocols including UART, I2C, WIFI, SPI , USB , Bluetooth , etc. To receive information from this camera , we used a 5 pin connector , which includes: VCC , GND and three digital pins. This camera has three microcontrollers named STM32H753, IS42S32800G 6BLI and 25Q256JVEQ-1912.

Pishnam Electronic