RC car lesson (#519)

* initial drop

* fixing summary

* adding images

* Adding basic connect code

* connect section

* moving video

* adding ignores

docs/projects/rc-car.md

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+# RC car
+
+### ~avatar avatar
+
+Hack a toy RC car with your @boardname@!
+
+### ~
+
+https://youtu.be/xQJCZwVvjyw
+
+### ~ hint
+
+This activity involves opening an electronic toy, cutting into cables and potentially rendering it completly useless.
+
+### ~
+
+## Materials
+
+* Toy RC car with 4 or 6 AA batteries
+* 1 @boardname@
+* a cable trimmer
+* small Philips screw driver
+* [1 Kitronik motor driver](https://www.kitronik.co.uk/5620-motor-driver-board-for-the-bbc-microbit-v2.html)
+
+## What's the plan?
+
+Most toy RC car use 3 small DC motors to operate:
+* 1 DC motor for the back wheels torque,
+* 1 DC motor for the front wheels torque,
+* 1 DC motor to steer the front wheels
+
+The plan is to open up the RC car, remove the existing electronic controller and replace it with the motor driver
+that can control 2 DC motors. We will connect both torque motors to one controller and the steering motor to the other controller.
+
+Once the motor driver is connected, we will use a @boardname@ to control it. Another @boardname@ can also be used as a radio controller
+for the @boardname@ in the car.
+
+### ~ hint
+
+Ask friends and family for old RC cars lying around, scout thrift shops and other second hand shops for discarded RC cars.
+
+### ~
+
+## Activities
+
+* [Make](/projects/rc-car/make)  
+* [Code](/projects/rc-car/code)
+* [Connect](/projects/rc-car/connect)
+
+### ~button /projects/rc-car/make
+
+Let's make it!
+
+### ~