Ardumower Gasoline

Ardumower Gasoline R/C is an ordinary gasoline powered mower converted to remote control (R/C) using Ardumower parts.

Parts list

All parts can be purchased in the shop . Click on a part for more details:

• 2x 260mm tires
• this 3d printed tire adapter or this one
• 1x free wheel
• 2x clamping elements
• 2x Ardumower gear motors
• 2x motor drivers BTS7960
• 1x Ardumower Power pack charger
• 1x Ardumower Power pack battery
• 1x DC/DC converter
• 1x Arduino Nano
• Arduino Nano I/O shield
• a model R/C receiver and a remote control (e.g. 2.4 Ghz R/C control)
• 1x fuse holder
• 1x fuse 4A
• 1x diode 10A
• 1x emergency switch
• 1x charging socket

Motors

Find a place on your mower for the gear motors. Use the clamping elements and the tire adapters to attach the tires to the motors.

Free wheel

Use 4 screws and a plate to support the free wheel.

Control box

Mount the Ardumower Power Pack battery, emergency switch, fuse holder, BTS7960 motor drivers, Arduino Nano, DC/DC converter and the model R/C receiver in a box.

Wiring

Connect the components as shown below. The emergency switch is to switch on and off the battery. The fuse holder will hold the 4A fuse. The diode is used to get down the battery voltage by at least 0.5 volt so the overvoltage protection of the BTS7960 motor drivers does not take place when the battery is fully charged. The DC/DC converter converts the Ardumower Power Pack battery 24v down to 9v for the Arduino voltage input. The motor drivers control the two motors via the Arduino Nano. The signal of two model R/C receiver channels are sent to the Arduino Nano allowing the user to steer the mower and to control the speed. The charging socket is used to connect the Ardumower charger for charging the battery.

Wiring Arduino and motor drivers

Connect your left BTS7960 motor driver to these Arduino pins:

left BTS7960   Arduino pin
GND            GND
VCC            +5V
R_EN           A1  
L_EN           A0
R_PWM          9
L_PWM          10

Connect your right BTS7960 motor driver to these Arduino pins:

right BTS7960   Arduino pin
GND             GND
VCC             +5V
R_EN            A3
L_EN            A2
R_PWM           3
L_PWM           11

Wiring Arduino and model R/C receiver

Connect your model R/C receiver to these Arduino pins:

model R/C receiver   Arduino pin
GND                  GND
VCC                  +5V
CH_Steering          5  
CH_Speed             6

Arduino code upload

Finally, download the Arduino IDE and upload this code to your Arduino Nano:

1. Download and install Arduino IDE
2. Upload this code to your Arduino Nano:

https://github.com/Ardumower/ardumower/blob/master/code/tests/rcmower/rcmower.ino