Electronique production¶
We designed our card at week8. You can download the .png files below.
to use Mods CE, the eye path generator, our work on week4 will be of great help.
in your browser, go to mods CE
you will need to obtain files in .rml format, which look like this:
Normally, if you have used our work from week4 to place the tools and other items, you should obtain the map we hold in your hand.
for the rest, you’ll just have to solder your components
List of components
| Components | Qté |
|---|---|
| buzzer | 1 |
| Led smd | 1 |
| Resistor smd | 1 |
| Capacitor smd | 2 |
| screw connector | - |
| female connector | - |
| male connector | - |
here’s the inside of our robot where we’ll wire up all the components
Here, we’ve wired the motors to the circuit we’ve made for the l293d drivers used to control the motors.
Here, on the other hand, is the circuit for the LEDs, the HC-SR04 sensor and the buzzer. Since the components are far from the center of the robot, we used jumpers to wire them.
For the power supply, we used a Lipo-type battery. Beforehand, we made some calculations to see how much current the components consume.
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12V gearmotors: 74 mA
-
HC-SR05 (ultrasonic sensor): Approx. 15 mA.
-
LEDs: Approx. 20 mA per LED. So 2 LEDs consume 40 mA.
-
Buzzer: Approx. 30 mA.
- Laser diode: Approx. 40 mA.
-
ESP-CAM: Approx. 300 mA when taking photos, otherwise approx. 80 mA.
-
ESP32: Approx. 160 mA in normal operation.
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L293D drivers (x2): Approx. 60 mA each, for a total of 120 mA.
Normally, a 1500mAh Lipo battery will be enough to power your system for at least 1 hour 30 minutes. we’ve done a repicage, with the battery powering both the drivers and the designed board. You’ll notice that we’ve fitted a regulator to lower the voltage at the board.
END