- Vex limit switch control update#
- Vex limit switch control driver#
- Vex limit switch control full#
- Vex limit switch control professional#
– Could we make the robot wait to start it’s timer until we were ready? Any ideas? Wasting Time? – The time it takes to turn on the VEX and start Radio Control is wasted time.Solution: Timers – Can be thought of as internal stopwatches (4 available) – Like encoders, timers should be “cleared” anytime before they are used.More loop control please? – Is remote controlling the robot forever always appropriate? – Question: Where would the wait statement go if we wanted the robot to be remote controlled for a controlled amount of time? – Answer: Nowhere! We need something else.Use the Transmitter buttons to control the arm – The Transmitter buttons send values of -127, 0, or 127 – Would direct mapping or indirect mapping be most appropriate for controlling the arm? Why?.Indirect Value Mapping – Values from the transmitter are modified before being used to control motors – Can make the robot easier to control – Appropriate in situations that require more “delicate” movements – Notice: the robot reads the right side of the equal sign first.Program Flow Tracing – Radio Control with Wait States – Radio Control with a Loop (real-time control).Direct Value Mapping – Values from the transmitter are directly used to control the motors (1:1 ratio).– Watch the Radio Control Setup and Values and Axes (Part 1) Videos in TRC4V, found in Radio Control > Control Mapping – Be sure to follow along with the Radio Control Setup Video! Since the Radio Control Transmitter can be configured, there’s the possibility that it’s configured inappropriately for our purposes.
Vex limit switch control full#
Vex limit switch control professional#
SabertoothTXPinSerial.begin(9600) // This is the baud rate you chose with the DIP switches.ROBOTC for VEX On-Site Professional Development Signed char sendMotorStates īounce buttons)] īounce limitSwitches)] just for easy access but we don’ even use it… Connections to make from arduino to sabertooth:
I get the rest of my hardware tomorrow, hopefully can give this a run outside of the IDE #include I started down the path of separate variables for each button, direction, motor, ect… and it got super messy.
Vex limit switch control update#
I have to update safeToMove() fcn to use the new 2D array approach. Here’s my approach to button control of motors 1 & 2 whattya think? It’s a Sabertooth 2x32A which will only require one I/O pin.
Vex limit switch control driver#
Next step will be to add the motor driver to the schematic. Am I on the right track so far or are there serious problems with the design? Each I/O pin wired to the NC limit switches will be held LOW, then when opened go HIGH via a 10K resistor. The TOP/BOTTOM of each roll-up side will have a limit switch to tell me when the side is fully open or closed. When the switch gets closed, (depending on the direction), one of the I/O pins will go LOW. Each I/O pin on the switch is held HIGH via a 10K resistor. I need to detect UP, DOWN position of each switch, so I used two I/O pins for each switch. Hence, my “external power supply” question.Ģ SPDT momentary (center off, normally open) switches. Since I’ll be using a 12VDC 36Amp power supply for this project to power the 2x32Amp motor driver, I figured I would use the logic +5v output off the driver to power the switches. The project is to control 2 roll-up sides of a greenhouse UP/DOWN. I’m scrapping the idea to supply 12VDC to the limit switches… see below.