Merkur buldozer

With this application we can control the bulldozer built from Merkur kit.

The mercury is assembled mechanics + 3 engines. One is in the left wheel, one in the right wheel and one controls the spoon.

The control is based on the ESP32 processor board. When the power is turned on, an access point named example: "Bulldozer xx" and the password example: "12348765"

Trowel control

Use the up and down buttons to control the loading direction of the loading bucket. Use the slider to set the bucket travel speed.

DRIVING CONTROLS

Using joysticks (in gray box) we can control movement in all directions. Driving forward and backward. Turn left and right in place. Turning forward and backward. The travel speed is set by the distance of the joystick wheel from the center. The center position is stop.

OPERATION INFORMATION

Traffic status information is displayed at the top and bottom of the screen. If OK, green text "OK" is displayed. If the device is unavailable (for example, due to a Wi-Fi connection failure), the text "CONNECTING ..." will be displayed at the bottom of the screen.

ABOUT APLICATION

The application "Bulldozer" was created by Martin Pihrt (www.pihrt.com) for the competition "technology has a golden bottom 2020".

API

App sends:

http://192.168.4.1/api?l=10&p=0&dwn=1&up=0&udpwm=255

up = 1 tbsp up

up = 0 tbsp feet

dwn = 1 tbsp down

dwn = 0 tbsp feet

udpwm = 0 to 255 Bucket Drive Engine (PWM)

l = -255 to 255 (-255 backward, 255 forward left wheel)

p = -255 to 255 (-255 backward, 255 forward right wheel)

More information at www.pihrt.com in the electronics section.