Resistive Touch Panel Driver
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Classes
class	TouchDriver.TouchDriver
	Resistive touch panel driver class More...

Variables
	TouchDriver.pinxp = Pin(Pin.cpu.A7)
	Positive x-direction pin object.

	TouchDriver.pinxm = Pin(Pin.cpu.A1)
	Negative x-direction pin object.

	TouchDriver.pinyp = Pin(Pin.cpu.A6)
	Positive y-direction pin object.

	TouchDriver.pinym = Pin(Pin.cpu.A0)
	Negative y-direction pin object.

float	TouchDriver.width = 0.108
	Width of the touch plate (y-direction)

float	TouchDriver.length = 0.186
	Length of the touch plate (x-direction)

list	TouchDriver.center = [0.105,0.067]
	Coordinates of the center of the plate.

	TouchDriver.touchObject = TouchDriver(pinxp,pinxm,pinyp,pinym,width,length,center)
	Touch panel driver object.

	TouchDriver.startTime = utime.ticks_us()
	The time in microseconds directly before method starts.

	TouchDriver.zTest = touchObject.zScan()
	Test output of zScan() method.

	TouchDriver.endTime = utime.ticks_us()
	The time in microseconds after method ends.

	TouchDriver.xTest = touchObject.xScan()
	Test output of xScan() method.

	TouchDriver.yTest = touchObject.yScan()
	Test output of yScan() method.

int	TouchDriver.timeSum = 0
	Total time for 100 read() methods to run.

	TouchDriver.readTest = touchObject.read()
	Test output of read() method.

	TouchDriver.testTime = utime.ticks_diff(endTime,startTime)
	The time for one single iteration of the read() method to complete.

int	TouchDriver.timeAvg = timeSum/100
	The average time for the read() method to complete over 100 runs.

Detailed Description

Resistive Touch Panel Driver

Date: 02/25/2021 This driver class can be used to scan for a point of contact on a resistive touch panel. Its constructor requires 4 pin objects - one for each of the nodes of the resistive elements within the panel - as well as a measurement for the width and length of the panel in units of cm. The center coordinate of the panel can also be defined, although it is set as an origin by default. This class has 4 methods; xscan() and yscan() determine the x- and y-position, respectively, of the point of contact on the panel from the center coordinates; zscan() determines whether an object is in contact with the panel; and read() scans all three consecutively and returns a tuple containing their readings.
Source https://bitbucket.org/MilesYoung/lab-4-term-project/src/master/Lab09/TouchDriver.py

Classes