add soldering tutorial (#15)

Author: DTeodor-Alexaandru

docs/autonomous_cars/1.electronics/2.soldering/index.md

@@ -1,3 +1,52 @@
 ---
 title: Soldering
----
+---
+
+## Soldering tutorial
+
+A quick start-up guide to soldering techniques and good practices can be found [here](https://www.youtube.com/watch?v=Qps9woUGkvI).
+
+## Wiring
+
+### Motor Drivers
+
+| Connection     | Pin Mapping              |
+|----------------|--------------------------|
+| Vbat           | VCC                      |
+| GND            | GND                      |
+| Motor 1 Pin1   | Driver 1 OUT1 & OUT2     |
+| Motor 1 Pin2   | Driver 1 OUT3 & OUT4     |
+| Motor 2 Pin1   | Driver 2 OUT1 & OUT2     |
+| Motor 2 Pin2   | Driver 2 OUT3 & OUT4     |
+| P0_25          | Driver 1 IN1 & IN3       |
+| P0_24          | Driver 1 IN2 & IN4       |
+| P0_26          | Driver 2 IN1 & IN3       |
+| P0_27          | Driver 2 IN2 & IN4       |
+
+---
+
+### Pixy Cam
+
+| Connection | Pin Mapping |
+|------------|-------------|
+| 5V         | VCC         |
+| GND        | GND         |
+| P4_1       | SCL         |
+| P4_0       | SDA         |
+
+---
+
+### Servo Motor
+
+| Connection | Pin Mapping              |
+|------------|--------------------------|
+| 5V         | VCC (red wire)           |
+| GND        | GND (black wire)         |
+| P1_12      | SIG (yellow wire)        |
+
+## Schematic
+
+
+<div align="center">
+![pixy_cam](../assets/schematic_ipw.png)
+</div>