Framework code

.gitignore

@@ -1,4 +1,3 @@
-.pioenvs
+.pio
-.piolibdeps
 *.kicad_pcb-bak
 *.sublime-workspace

DeskControl.sublime-project

@@ -3,7 +3,8 @@
   [
     {
       "path": ".",
-      "file_exclude_patterns": ["*.sublime-project"]
+      "file_exclude_patterns": ["*.sublime-project"],
+      "folder_exclude_patterns": [".pioenvs"]
     }
   ]
 }

README.md

@@ -0,0 +1,20 @@
+# DeskControl
+This project is for motorizing a (very specific) manually controlled standing desk. I wanted to call it AutoDesk, but I don't like getting sued :-)
+
+Contained in this repository are the hardware designs and software source code. I doubt it's useful to anyone but me, but it may contain some interesting bits of code.
+
+All contents are released under the [Unlicense](https://unlicense.org/). Help yourself!
+
+## Building and uploading
+This project uses [PlatformIO](https://platformio.org/). For reference, here are some of the common commands:
+
+
+
+_Building_
+```pio run```
+
+_Building and uploading_
+```pio run -t upload```
+
+_Installing the libraries (without building)_
+```pio lib install```

UNLICENSE

@@ -0,0 +1,24 @@
+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <http://unlicense.org/>

build.ps1

@@ -1 +0,0 @@
-& platformio run

platformio.ini

@@ -21,3 +21,6 @@ board_build.f_cpu = 8000000L
 
 lib_deps =
   Bounce2
+  Adafruit GFX Library
+  Adafruit ST7735 and ST7789 Library
+  Adafruit_VL53L0X

src/include/display.h

@@ -0,0 +1,14 @@
+#ifndef __ports
+#define __ports
+
+// Settings for an ST7789 based 240x240 pixel LCD.
+#define DISPLAY_WIDTH 240
+#define DISPLAY_HEIGHT 240
+#define DISPLAY_ROTATION 2
+
+// Control pins. Data is sent over the hardware SPI pins.
+#define DISPLAY_PORT_CS 10
+#define DISPLAY_PORT_RST 9
+#define DISPLAY_PORT_DC 8
+
+#endif

src/include/heightsensor.h

@@ -0,0 +1,6 @@
+#ifndef __heightsensor
+#define __heightsensor
+
+#define HEIGHTSENSOR_I2C_ADDRESS 0x29
+
+#endif

src/lib/menu.cpp

@@ -0,0 +1,7 @@
+#include "./menu.h"
+#include <Fonts/FreeSansBold18pt7b.h>
+
+void Menu::init()
+{
+  this->display->setFont(&FreeSansBold18pt7b);
+}

src/lib/menu.h

@@ -0,0 +1,25 @@
+#ifndef __menu
+#define __menu
+
+#include <Adafruit_GFX.h>
+#include "include/display.h"
+
+#if DISPLAY_WIDTH != 240 || DISPLAY_HEIGHT != 240
+  #error "The menu assumes a display pixel size of 240x240"
+#endif
+
+class Menu
+{
+  private:
+    Adafruit_GFX* display;
+
+  public:
+    Menu(Adafruit_GFX* display)
+    {
+      this->display = display;
+    }
+
+    void init();
+};
+
+#endif

src/lib/vl53l0x.cpp

@@ -0,0 +1,56 @@
+#include "VL53L0X.h"
+
+bool VL53L0X::init(uint8_t address)
+{
+  device.I2cDevAddr = address;
+  device.comms_type = 1;
+  device.comms_speed_khz = 400;
+  device.i2c = &Wire;
+
+  if (!VL53L0X_DataInit(&device))
+    return false;
+
+  //if (!VL53L0X_GetDeviceInfo(&device, &deviceInfo))
+  //  return false;
+
+  if (!VL53L0X_StaticInit(&device))
+    return false;
+
+
+  uint32_t refSpadCount;
+  uint8_t isApertureSpads;
+
+  if (!VL53L0X_PerformRefSpadManagement(&device, &refSpadCount, &isApertureSpads))
+    return false;
+
+
+  // TODO expose as API to be run before changing desk positions
+  uint8_t vhvSettings;
+  uint8_t phaseCal;
+
+  if (!VL53L0X_PerformRefCalibration(&device, &vhvSettings, &phaseCal))
+    return false;
+
+  if (!VL53L0X_SetDeviceMode(&device, VL53L0X_DEVICEMODE_SINGLE_RANGING))
+    return false;
+
+  if (!VL53L0X_SetLimitCheckEnable(&device, VL53L0X_CHECKENABLE_SIGMA_FINAL_RANGE, 1))
+    return false;
+
+  if (!VL53L0X_SetLimitCheckEnable(&device, VL53L0X_CHECKENABLE_SIGNAL_RATE_FINAL_RANGE, 1))
+    return false;
+
+  if (!VL53L0X_SetLimitCheckEnable(&device, VL53L0X_CHECKENABLE_RANGE_IGNORE_THRESHOLD, 1))
+    return false;
+
+  if (!VL53L0X_SetLimitCheckValue(&device, VL53L0X_CHECKENABLE_RANGE_IGNORE_THRESHOLD, (FixPoint1616_t)( 1.5 * 0.023 * 65536)))
+    return false;
+
+  return true;
+}
+
+
+bool VL53L0X::getSingleRangingMeasurement(VL53L0X_RangingMeasurementData_t *data)
+{
+  return VL53L0X_PerformSingleRangingMeasurement(&device, data);
+}

src/lib/vl53l0x.h

@@ -0,0 +1,37 @@
+/*
+
+  The Adafruit VL53L0X library is included because it's an easy way to get
+  access to the VL53L0X API headers. I will not be using the Adafruit library
+  however because it lacks a way to set the timing budget, which I found to be
+  very much required for accurate results.
+
+*/
+
+#ifndef __vl53l0x
+#define __vl53l0x
+
+#include "Arduino.h"
+#include "Wire.h"
+#include "vl53l0x_api.h"
+
+
+// TODO if begin fails, return a struct with the step and API status code
+
+#define VL53L0X_BEGIN_SUCCESS 0
+#define VL53L0X_BEGIN_SUCCESS 0
+
+
+class VL53L0X
+{
+  public:
+    bool init(uint8_t address);
+
+    // TODO set timing budget
+
+    bool getSingleRangingMeasurement(VL53L0X_RangingMeasurementData_t* data);
+
+ private:
+    VL53L0X_Dev_t device;
+};
+
+#endif

src/main.cpp

@@ -1,4 +1,47 @@
-int main()
+#include <SPI.h>
+#include <Wire.h>
+#include <Adafruit_GFX.h>
+#include <Adafruit_ST7789.h>
+
+#include "./include/display.h"
+#include "./include/heightsensor.h"
+#include "./lib/menu.h"
+#include "./lib/vl53l0x.h"
+
+
+Adafruit_ST7789 display = Adafruit_ST7789(DISPLAY_PORT_CS, DISPLAY_PORT_DC, DISPLAY_PORT_RST);
+VL53L0X heightSensor = VL53L0X();
+
+Menu menu = Menu(&display);
+
+
+void setup()
 {
-  return 0;
+  display.init(DISPLAY_WIDTH, DISPLAY_HEIGHT, SPI_MODE3);
+  display.setRotation(DISPLAY_ROTATION);
+  display.fillScreen(ST77XX_BLACK);
+
+  menu.init();
+
+  // TODO draw "initializing" text
+
+  Wire.begin();
+  heightSensor.init(HEIGHTSENSOR_I2C_ADDRESS);
+
+/*
+  Wire.begin();
+  if (!heightSensor.begin())
+  {
+    // TODO draw "height sensor error" text
+
+    while(1);
+  }
+
+  display.fillScreen(ST77XX_BLACK);
+*/
+}
+
+void loop()
+{
+  // TODO
 }

upload.ps1

@@ -1 +0,0 @@
-& platformio run --target upload