Delete Trackpoint_380_breadboard.ino

Example_Keyboards/IBM Thinkpad 380ED/Teensy 3p2 code/Trackpoint_380_breadboard.ino

@@ -1,77 +0,0 @@
-/* Copyright 2020 Frank Adams
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-       http://www.apache.org/licenses/LICENSE-2.0
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
-*/
-// This software interfaces the Teensy 3.2 with a Thinkpad 380ED laptop trackpoint.
-// The trackpoint strain gauge resistors are fed to an instrumentation amplifier which drives the
-// Teensy ADC inputs.   
-// In the Arduino IDE, select Tools, Teensy 3.2. Also under Tools, select Keyboard+Mouse+Joystick
-//
-// Revision History
-// Rev 1.0 - April 22, 2020 - Original Release
-//
-// declare and initialize variables  
-  int x_read; // stores the reading from the X ADC
-  int y_read; // same for the Y ADC
-  char mx; // signed byte used by the Mouse.move function for x value. Positive value moves to the right
-  char my; // positive y value moves down 
-  int x_delta; // signed 16 bit value gives x movement amount
-  int y_delta; // y version. 
-  int x_center; //resting position of x sensor
-  int y_center; //resting position of y sensor
-  int noise_zone = 50; // dead zone around the center. Can be as low as 3 but cursor may start to drift so add some safety margin. 
-                        // Increase this number if the cursor moves without touching the TP. Decrease if too much force is needed.
-  
-void setup()
-{
-  delay(1000); // delay a second to let things settle out
-  analogReadRes(13); // set ADC resolution to 13 bits (16 bit ADC but low 3 bits are random noise)
-  analogReadAveraging(8); // ADC will take the average of 8 reads to filter noise.
-  x_center = analogRead(A10); // store the center (no movement) position for x
-  y_center = analogRead(A11); // same for y. 
-// When the keyboard code is added, detect when Fn - F8 is pushed to indicate that
-// x_center and y_center should be read again from the ADC. This would be because
-// the operator notices the cursor is moving without being pushed.
-}
-//
-// ************************************Main Loop***************************************************************
-void loop() {
-  mx = 0; // for each loop, start with zero and update only if movement detected
-  my = 0; // same for y
-
-  x_read = analogRead(A10); // read the ADC tied to the X sensor
-  if (x_read > (x_center + noise_zone)) {  // is ADC to the right of the noise zone beyond the resting position?
-    x_delta = (x_read - (x_center + noise_zone)) / 10; // find out how far beyond noise zone. Divide by 10 to slow it down.
-    mx = byte(x_delta); // convert signed 16 bit to signed 8 bit
-  }
-  else if (x_read < (x_center - noise_zone)) { // is ADC to the left of the noise zone beyond the resting position?
-    x_delta = (((x_center - noise_zone) - x_read) / 10) * -1; // Answer should be negative so multiply by -1
-    mx = byte(x_delta);
-  }
-
-  y_read = analogRead(A11); // read the ADC tied to the Y sensor
-  if (y_read > (y_center + noise_zone)) {
-    y_delta = ((y_read - (y_center + noise_zone)) / 10) * -1; // up movement is negative for Mouse.move function
-    my = byte(y_delta);  
-  }
-  else if (y_read < (y_center - noise_zone)) {
-    y_delta = (((y_center - noise_zone) - y_read) / 10);
-    my = byte(y_delta);
-  }
-
-// send the x and y data over usb if either one is not at center position
-  if ((mx != 0x00) || (my != 0x00)) {
-    Mouse.move(mx,my);
-  }
-//
-// **************************************End of trackpoint routine***********************************
-// 
-  delay(30);  // wait 30ms before repeating next polling cycle
-}