How to Build a Lego Monster Truck 7/13/2017

The PulseRain M10 board is capable of a lot of things. One of them is to build a Lego Monster Truck, with PWM and Wifi Shields from Sparkfun, plus two DC motors. And here is how:

1) Get the PulseRain M10 board

2) Get the Sparkfun PWM shield
solder the parts together

3) Get the Sparkfun ESP8266 Shield
solder the connector pin head

The PWM shield needs a 5V input, that can be provided by wiring the 5V pin on ESP8266 shield to the power connector of PWM shield, and stack them together, like the following:

4) Get Two DC 3V-6V Dual Axis Gear Motor from banggood.com. Or they might cost less than $1 each if you buy them from AliExpress

solder wires to the DC motor with 22AWG solid core

5) build the steering mechanism:

6) Hack one of the DC motors according to instructions here, and attach it to the Lego Gear Box

7) Mount the steering mechanism and the DC motor to a Lego 8 x 16 plate using cable tie

8) Attach the other DC motor with two wheels. The wheels are 65 mm in diameter and 28 mm wide. You can get them from Amazon  or banggood.com

9) Attach the DC motors (with wheels) to 3 2 x 16 Lego Plate stack

10) put everything above together with cable tie, connect the DC motor to PWM shield

Now you get yourself a Lego Monster Truck. And stay tuned for firmware/software!

    Posted by Changyi at 11:46 PM


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