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3d printed mounting for sonars
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general placement of the sonars while i'm waiting for the 3d printed mounting to arrive. the control pcb is just floating, i should bolt it down...
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soldering done! this PCB supports all the resistors you need for 3 hcsr04 sonars
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( the setup my PCB is replacing, too much going on with that breadboard!!! )
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new PCB from http://fab.fritzing.org/ done! will handle the 3 HC-SR04 sonars
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A C++ ROS node wrapper for publishing sonar readings from a set of sonars (one per topic)
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PCB design for three HC-SR04 sonars. "321GV" pins connect to Gnd and VCC on PI and whatever three GPIO pins are going be connected to the sonar echos. Note: triggers will be directly from the sonar to the pi and don't need to go through this board. If I were to start from scratch again I'd make this a HAT to sit on top of the MotorHat.
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wired up the first (of three) sonars today and works fine. tested it with a simple python script but will replace it with a ros node similar to https://github.com/matpalm/ros-mpu6050-node that will just publish a 3 tuple to a topic
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wrote a simple c++ ROS wrapper for the Adafruit DC Motor HAT
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