+// license info at bottom of file
+// tl;dr AGPLv3+
+
+/*
+ define which pins are connected to which components
+*/
+
+//////////////////////
+// right motor
+//////////////////////
+// blue wire
+int right_motor_forward_pin = 3;
+// orange wire
+int right_motor_backward_pin = 4;
+// white wire
+int right_motor_speed_pin = 5;
+
+//////////////////////
+// right sonar sensor
+//////////////////////
+// yellow wire
+int right_echo_pin = 6;
+// blue wire
+int right_trigger_pin = 7;
+
+//////////////////////
+// left motor
+//////////////////////
+// blue wire
+int left_motor_forward_pin = 8;
+// orange wire
+int left_motor_backward_pin = 9;
+// white wire
+int left_motor_speed_pin = 10;
+
+//////////////////////
+// left sonar sensor
+//////////////////////
+// yellow wire
+int left_echo_pin = 11;
+// blue wire
+int left_trigger_pin = 12;
+
+/*
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as
+ published by the Free Software Foundation, either version 3 of the
+ License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */