MicroView Widget Style Guide

This is a visual guide for the various MicroView widget styles that are part of the MicroView Library. Please note that any fuzziness or lack of clarity in the display is due to the shutter speed of my camera having to be open long enough to capture the full display without worrying about refresh rates.

All examples are screenshots taken of the MicroView running the example sketch, “MicroViewWidgetDemo”, provided upon installation of the MicroView Library in the Arduino IDE. The full code is provided at the bottom for reference, and the library can be downloaded from the GeekAmmo GitHub Arduino Library repository.

MicroView Widget Styles – Sliders

1. Horizontal MicroView Slider Style 0 widget1 = new MicroViewSlider(4, 16, 0, 100, WIDGETSTYLE0);
widget2 = new MicroViewSlider(4, 32, 0, 100, WIDGETSTYLE0 + WIDGETNOVALUE);

The top slider displays the numerical value to the right of the graphical display. The bottom slider suppresses the numerical value. In both cases, the triangle indicator slides left and right across the meter as the value changes by using the spin() method.

2. Horizontal MicroView Slider Style 1 widget1 = new MicroViewSlider(0, 10, 100, 200, WIDGETSTYLE1);
widget2 = new MicroViewSlider(0, 32, 100, 200, WIDGETSTYLE1 + WIDGETNOVALUE);

The top slider displays the numerical value below and justified with the left side of the slider. The bottom slider suppresses the numerical value. In both cases, the triangle indicator slides left and right across the meter as the value changes by using spin() method.

3. Vertical MicroView Slider Style 2 widget1 = new MicroViewSlider(10, 12, 0, 5000, WIDGETSTYLE2);
widget2 = new MicroViewSlider(48, 12, 0, 5000, WIDGETSTYLE2 + WIDGETNOVALUE);

The left slider displays the numerical value below and justified with the left side of the slider. The right slider suppresses the numerical value. In both cases, the triangle indicator slides up and down across the meter as the value changes by using the spin() method. Described in the documentation as “like 0, but vertical”.

4. Vertical MicroView Slider Style 3 widget1 = new MicroViewSlider(16, 4, -20, 20, WIDGETSTYLE3);
widget2 = new MicroViewSlider(54, 4, -20, 20, WIDGETSTYLE3 + WIDGETNOVALUE);

The left slider displays the numerical value to the right of the slider. The right slider suppresses the numerical value. In both cases, the triangle indicator slides up and down across the meter as the value changes by using the spin() method. Described in the documentation as “like 1, but vertical”.

MicroView Widget Styles – Gauges

5. MicroView Gauge Style 0 widget1 = new MicroViewGauge(15, 24, 0, 200, WIDGETSTYLE0);
widget2 = new MicroViewGauge(48, 24, 0, 200, WIDGETSTYLE0 + WIDGETNOVALUE);

The left gauge displays the numerical value right justified at the base of the gauge, looking centered with a three digit value. The right gauge suppresses the numerical value. In both cases, the needle indicator rotates around the meter as the value changes by using the spin() method.

6. MicroView Gauge Style 1 widget1 = new MicroViewGauge(32, 24, -10, 150, WIDGETSTYLE1);

A single large gauge displaying the numerical value at the base, inside the circle of the gauge face. The needle indicator rotates around the meter as the value changes by using the spin() method.

7. MicroView Gauge Style 1 widget1 = new MicroViewGauge(32, 24, 0, 240, WIDGETSTYLE1 + WIDGETNOVALUE);

A single large gauge with the numerical value suppressed. The needle indicator rotates, as above, around the meter however no value is present. Rotation is performed via the spin() method.

MicroView Widget Styles – Custom Value Displays

The following images are examples of the styles from above, with the default numerical value display suppressed, then replaced by a value in a different format in custom locations. The correspond with demos 8 through 13 in the code at the bottom.

[masterslider id=25]

/*
	MicroView Arduino Library
	Copyright (C) 2014 GeekAmmo

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include <MicroView.h>

// The Arduino build process doesn't create a prototype for the spin function,
// (probably because it has a function pointer as a parameter)
// so it's added here.
void spin(int16_t lowVal, int16_t highVal, int16_t stepSize,
          unsigned long stepDelay, void (*drawFunction)(int16_t val));

MicroViewWidget *widget1, *widget2;

int16_t prevVal; // previous widget value

void setup() {
  uView.begin();
}

void loop() {
  /*  ==================== Demo 1 ====================
      Horizontal slider style 0, with and without numeric value.
      Range 0 to 100.
      ================================================ */
  demoNumber(1);

  widget1 = new MicroViewSlider(4, 16, 0, 100);
  widget2 = new MicroViewSlider(4, 32, 0, 100, WIDGETSTYLE0 + WIDGETNOVALUE);

  spin(0, 100, 5, 100, update2widgets);

  delete widget1;
  delete widget2;

  /*  ==================== Demo 2 ====================
      Horizontal slider style 1, with and without numeric value.
      Range 100 to 200.
      ================================================ */
  demoNumber(2);

  widget1 = new MicroViewSlider(0, 10, 100, 200, WIDGETSTYLE1);
  widget2 = new MicroViewSlider(0, 32, 100, 200, WIDGETSTYLE1 + WIDGETNOVALUE);

  spin(100, 200, 5, 100, update2widgets);

  delete widget1;
  delete widget2;

  /*  ==================== Demo 3 ====================
      Vertical slider style 2, with and without numeric value.
      Range 0 to 5000.
      ================================================ */
  demoNumber(3);

  widget1 = new MicroViewSlider(10, 12, 0, 5000, WIDGETSTYLE2);
  widget2 = new MicroViewSlider(48, 12, 0, 5000, WIDGETSTYLE2 + WIDGETNOVALUE);

  spin(0, 5000, 250, 100, update2widgets);

  delete widget1;
  delete widget2;

  /*  ==================== Demo 4 ====================
      Vertical slider style 3, with and without numeric value.
      Range -20 to 20.
      ================================================ */
  demoNumber(4);

  widget1 = new MicroViewSlider(16, 4, -20, 20, WIDGETSTYLE3);
  widget2 = new MicroViewSlider(54, 4, -20, 20, WIDGETSTYLE3 + WIDGETNOVALUE);

  spin(-20, 20, 2, 100, update2widgets);

  delete widget1;
  delete widget2;

  /*  ==================== Demo 5 ====================
      Gauge style 0, with and without numeric value.
      Range 0 to 200.
      ================================================ */
  demoNumber(5);

  widget1 = new MicroViewGauge(15, 24, 0, 200, WIDGETSTYLE0);
  widget2 = new MicroViewGauge(48, 24, 0, 200, WIDGETSTYLE0 + WIDGETNOVALUE);

  spin(0, 200, 10, 100, update2widgets);

  delete widget1;
  delete widget2;

  /*  ==================== Demo 6 ====================
      Gauge style 1, with numeric value.
      Range -10 to 150.
      ================================================ */
  demoNumber(6);

  widget1 = new MicroViewGauge(32, 24, -10, 150, WIDGETSTYLE1);

  spin(-10, 150, 8, 100, update1widget);

  delete widget1;

  /*  ==================== Demo 7 ====================
      Gauge style 1, with no numeric value.
      Range 0 to 240.
      ================================================ */
  demoNumber(7);

  widget1 = new MicroViewGauge(32, 24, 0, 240, WIDGETSTYLE1 + WIDGETNOVALUE);

  spin(0, 240, 4, 33, update1widget);

  delete widget1;

  /*  ==================== Demo 8 ====================
      Slider style 0, with no numeric value.
      Value manually displayed in hexadecimal.
      Range 0 to 0xff.
      ================================================ */
  demoNumber(8);

  widget1 = new MicroViewSlider(4, 16, 0, 0xff, WIDGETSTYLE0 + WIDGETNOVALUE);

  spin(0, 0xff, 5, 39, customSlider0);

  delete widget1;

  /*  ==================== Demo 9 ====================
      Slider style 1, with no numeric value.
      Value manually displayed, centred above the slider.
      Range -30000 to 30000.
      ================================================ */
  demoNumber(9);

  widget1 = new MicroViewSlider(2, 24, -30000, 30000, WIDGETSTYLE1 + WIDGETNOVALUE);

  spin(-30000, 30000, 1500, 50, customSlider1);

  delete widget1;

  /*  ==================== Demo 10 ====================
      Slider style 2, with no numeric value.
      Value manually displayed.
      Pointer moves from low at the top to high at the bottom.
      Range 0 to 600.
      Note: The widget getValue() method will return a wrong
      value. It is changed to reverse the pointer direction.
      ================================================ */
  demoNumber(10);

  widget1 = new MicroViewSlider(20, 10, 0, 600, WIDGETSTYLE2 + WIDGETNOVALUE);

  spin(0, 600, 30, 100, customSlider2);

  delete widget1;

  /*  ==================== Demo 11 ====================
      Slider style 3, with no numeric value.
      Value manually displayed, beside the pointer.
      Range 0 to 11.
      "These go to eleven!" - Nigel Tufnel of Spinal Tap.
      ================================================ */
  demoNumber(11);

  widget1 = new MicroViewSlider(24, 2, 0, 11, WIDGETSTYLE3 + WIDGETNOVALUE);
  prevVal = widget1->getValue();

  spin(0, 11, 1, 250, customSlider3);

  delete widget1;

  /*  ==================== Demo 12 ====================
      Gauge style 0, with no numeric value.
      Value manually displayed beneath, with a decimal point,
      in a larger font.
      "km/h" added to the bottom of the gauge.
      For simplicity, the range and values are actually
      10 times what is to be displayed, so they can be set,
      stored and manipulated as integers.
      Range 0.0 to 20.0 (actually 0 to 200).
      ================================================ */
  demoNumber(12);

  widget1 = new MicroViewGauge(35, 17, 0, 200, WIDGETSTYLE0 + WIDGETNOVALUE);

  // draw the fixed "km/h" text
  uView.setCursor(widget1->getX() - 11, widget1->getY() + 11);
  uView.print("km/h");

  spin(0, 200, 1, 40, customGauge0);

  delete widget1;

  /*  ==================== Demo 13 ====================
      Gauge style 1, with no numeric value.
      Value manually displayed as a letter.
      Range 1 to 26 (A to Z).
      ================================================ */
  demoNumber(13);
 
  widget1 = new MicroViewGauge(36, 24, 1, 26, WIDGETSTYLE1 + WIDGETNOVALUE);

  spin( 1, 26, 1, 200, customGauge1);

  delete widget1;

/* ================== end of loop() ================== */
}

// Function to update widget1
void update1widget(int16_t val) {
  widget1->setValue(val);
}

// Function to update widget1 and widget2
void update2widgets(int16_t val) {
  widget1->setValue(val);
  widget2->setValue(val);
}

// Update function for Demo 8
void customSlider0(int16_t val) {
  widget1->setValue(val);
  uView.setCursor(widget1->getX() + 34, widget1->getY() + 1);
  uView.print("0x");
  if (val < 0x10) { // add leading 0 if necessary. Only 2 digits supported.
    uView.print('0');
  }
  uView.print(val, HEX);
}

// Update function for Demo 9
void customSlider1(int16_t val) {
  widget1->setValue(val);
  uint8_t offsetY = widget1->getY() - 10;
  uint8_t offsetX = widget1->getX() + 14;
  uView.setCursor(offsetX, offsetY);
  uView.print("      "); // erase the previous value in case it's longer
  // calculate the offset to centre the value
  offsetX += ((widget1->getMaxValLen() - widget1->getValLen()) * 3);
  uView.setCursor(offsetX, offsetY);
  uView.print(val);
}

// Update function for Demo 10
void customSlider2(int16_t val) {
  uView.setCursor(widget1->getX() + 1, widget1->getY() + 24);
  widget1->drawNumValue(val);
  // calculate to reverse the pointer direction
  widget1->setValue((int16_t) ((int32_t) widget1->getMaxValue() +
                               (int32_t) widget1->getMinValue() -
                               (int32_t) val));
}

// Update function for Demo 11
void customSlider3(int16_t val) {
  int16_t maxVal = widget1->getMaxValue();
  uint16_t range = (uint16_t) (maxVal - widget1->getMinValue());
  uint8_t offsetX = widget1->getX() + 9;

  // erase previous value.
  // pointer position is calculated the same way as the widget code.
  uint8_t offsetY = (float)(uint16_t)(maxVal - prevVal) / (float)range * 40;
  uView.setCursor(offsetX, offsetY);
  uView.print("  "); // This is being lazy. Should calculate width for value.

  // draw new value
  offsetY = (float)(uint16_t)(maxVal - val) / (float)range * 40;
  uView.setCursor(offsetX, offsetY);
  widget1->drawNumValue(val);

  widget1->setValue(val);
}

// Update function for Demo 12
void customGauge0(int16_t val) {
  widget1->setValue(val);
  
  uView.setCursor(widget1->getX() - 17, widget1->getY() + 19);
  uView.setFontType(1);
  // add leading space if necessary, to right justify.
  // only 2 digit (plus decimal) numbers are supported.
  if (val < 100) {
    uView.print(' ');
  }
  uView.print((float)val / 10, 1);
  uView.setFontType(0);
}

// Update function for Demo 13
void customGauge1(int16_t val) {
  widget1->setValue(val);
  uView.setCursor(widget1->getX() - 2, widget1->getY() + 9);
  uView.print((char)(val + 'A' - 1));
}

// Clear the screen buffer and draw the demo number in the corner
void demoNumber(int num) {
  uView.clear(PAGE);
  uView.setCursor(0, 0);
  uView.print(num);
  uView.print(":");
}

// Spin up, then down, through the values.
//
// For each value, call the update function and display the new screen.
void spin(int16_t lowVal, int16_t highVal, int16_t stepSize,
          unsigned long stepDelay, void (*drawFunction)(int16_t val)) {
  drawFunction(lowVal);
  uView.display();
  prevVal = lowVal;
  delay(1500);

  for (int16_t i = lowVal + stepSize; i <= highVal; i += stepSize) {
    drawFunction(i);
    uView.display();
    prevVal = i;
    delay(stepDelay);
    if ((i == 0) && (lowVal != 0)) { // pause briefly for a value of 0
      delay(750);
    }
  }

  delay(1500);

  for (int16_t i = highVal; i >= lowVal; i -= stepSize) {
    drawFunction(i);
    uView.display();
    prevVal = i;
    delay(stepDelay);
    if ((i == 0) && (lowVal != 0)) { // pause briefly for a value of 0
      delay(750);
    }
  }

  delay(1500);
}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

333

334

335

336

337

338

339

340

341

342

343

344

345

346

347

348

349

350

351

352

353

MicroView Arduino Library

This program is free software: you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation, either version 3 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program. If not, see <http://www.gnu.org/licenses/>.

#include <MicroView.h>

// The Arduino build process doesn't create a prototype for the spin function,

// (probably because it has a function pointer as a parameter)

// so it's added here.

void spin(int16_t lowVal, int16_t highVal, int16_t stepSize,

unsigned long stepDelay, void (*drawFunction)(int16_t val));

MicroViewWidget *widget1, *widget2;

int16_t prevVal; // previous widget value

void setup() {

uView.begin();

}

void loop() {

/* ==================== Demo 1 ====================

Horizontal slider style 0, with and without numeric value.

Range 0 to 100.

================================================ */

demoNumber(1);

widget1 = new MicroViewSlider(4, 16, 0, 100);

widget2 = new MicroViewSlider(4, 32, 0, 100, WIDGETSTYLE0 + WIDGETNOVALUE);

spin(0, 100, 5, 100, update2widgets);

delete widget1;

delete widget2;

/* ==================== Demo 2 ====================

Horizontal slider style 1, with and without numeric value.

Range 100 to 200.

================================================ */

demoNumber(2);

widget1 = new MicroViewSlider(0, 10, 100, 200, WIDGETSTYLE1);

widget2 = new MicroViewSlider(0, 32, 100, 200, WIDGETSTYLE1 + WIDGETNOVALUE);

spin(100, 200, 5, 100, update2widgets);

delete widget1;

delete widget2;

/* ==================== Demo 3 ====================

Vertical slider style 2, with and without numeric value.

Range 0 to 5000.

================================================ */

demoNumber(3);

widget1 = new MicroViewSlider(10, 12, 0, 5000, WIDGETSTYLE2);

widget2 = new MicroViewSlider(48, 12, 0, 5000, WIDGETSTYLE2 + WIDGETNOVALUE);

spin(0, 5000, 250, 100, update2widgets);

delete widget1;

delete widget2;

/* ==================== Demo 4 ====================

Vertical slider style 3, with and without numeric value.

Range -20 to 20.

================================================ */

demoNumber(4);

widget1 = new MicroViewSlider(16, 4, -20, 20, WIDGETSTYLE3);

widget2 = new MicroViewSlider(54, 4, -20, 20, WIDGETSTYLE3 + WIDGETNOVALUE);

spin(-20, 20, 2, 100, update2widgets);

delete widget1;

delete widget2;

/* ==================== Demo 5 ====================

Gauge style 0, with and without numeric value.

Range 0 to 200.

================================================ */

demoNumber(5);

widget1 = new MicroViewGauge(15, 24, 0, 200, WIDGETSTYLE0);

widget2 = new MicroViewGauge(48, 24, 0, 200, WIDGETSTYLE0 + WIDGETNOVALUE);

spin(0, 200, 10, 100, update2widgets);

delete widget1;

delete widget2;

/* ==================== Demo 6 ====================

Gauge style 1, with numeric value.

Range -10 to 150.

================================================ */

demoNumber(6);

widget1 = new MicroViewGauge(32, 24, -10, 150, WIDGETSTYLE1);

spin(-10, 150, 8, 100, update1widget);

delete widget1;

/* ==================== Demo 7 ====================

Gauge style 1, with no numeric value.

Range 0 to 240.

================================================ */

demoNumber(7);

widget1 = new MicroViewGauge(32, 24, 0, 240, WIDGETSTYLE1 + WIDGETNOVALUE);

spin(0, 240, 4, 33, update1widget);

delete widget1;

/* ==================== Demo 8 ====================

Slider style 0, with no numeric value.

Value manually displayed in hexadecimal.

Range 0 to 0xff.

================================================ */

demoNumber(8);

widget1 = new MicroViewSlider(4, 16, 0, 0xff, WIDGETSTYLE0 + WIDGETNOVALUE);

spin(0, 0xff, 5, 39, customSlider0);

delete widget1;

/* ==================== Demo 9 ====================

Slider style 1, with no numeric value.

Value manually displayed, centred above the slider.

Range -30000 to 30000.

================================================ */

demoNumber(9);

widget1 = new MicroViewSlider(2, 24, -30000, 30000, WIDGETSTYLE1 + WIDGETNOVALUE);

spin(-30000, 30000, 1500, 50, customSlider1);

delete widget1;

/* ==================== Demo 10 ====================

Slider style 2, with no numeric value.

Value manually displayed.

Pointer moves from low at the top to high at the bottom.

Range 0 to 600.

Note: The widget getValue() method will return a wrong

value. It is changed to reverse the pointer direction.

================================================ */

demoNumber(10);

widget1 = new MicroViewSlider(20, 10, 0, 600, WIDGETSTYLE2 + WIDGETNOVALUE);

spin(0, 600, 30, 100, customSlider2);

delete widget1;

/* ==================== Demo 11 ====================

Slider style 3, with no numeric value.

Value manually displayed, beside the pointer.

Range 0 to 11.

"These go to eleven!" - Nigel Tufnel of Spinal Tap.

================================================ */

demoNumber(11);

widget1 = new MicroViewSlider(24, 2, 0, 11, WIDGETSTYLE3 + WIDGETNOVALUE);

prevVal = widget1->getValue();

spin(0, 11, 1, 250, customSlider3);

delete widget1;

/* ==================== Demo 12 ====================

Gauge style 0, with no numeric value.

Value manually displayed beneath, with a decimal point,

in a larger font.

"km/h" added to the bottom of the gauge.

For simplicity, the range and values are actually

10 times what is to be displayed, so they can be set,

stored and manipulated as integers.

Range 0.0 to 20.0 (actually 0 to 200).

================================================ */

demoNumber(12);

widget1 = new MicroViewGauge(35, 17, 0, 200, WIDGETSTYLE0 + WIDGETNOVALUE);

// draw the fixed "km/h" text

uView.setCursor(widget1->getX() - 11, widget1->getY() + 11);

uView.print("km/h");

spin(0, 200, 1, 40, customGauge0);

delete widget1;

/* ==================== Demo 13 ====================

Gauge style 1, with no numeric value.

Value manually displayed as a letter.

Range 1 to 26 (A to Z).

================================================ */

demoNumber(13);

widget1 = new MicroViewGauge(36, 24, 1, 26, WIDGETSTYLE1 + WIDGETNOVALUE);

spin( 1, 26, 1, 200, customGauge1);

delete widget1;

/* ================== end of loop() ================== */

}

// Function to update widget1

void update1widget(int16_t val) {

widget1->setValue(val);

}

// Function to update widget1 and widget2

void update2widgets(int16_t val) {

widget1->setValue(val);

widget2->setValue(val);

}

// Update function for Demo 8

void customSlider0(int16_t val) {

widget1->setValue(val);

uView.setCursor(widget1->getX() + 34, widget1->getY() + 1);

uView.print("0x");

if (val < 0x10) { // add leading 0 if necessary. Only 2 digits supported.

uView.print('0');

}

uView.print(val, HEX);

}

// Update function for Demo 9

void customSlider1(int16_t val) {

widget1->setValue(val);

uint8_t offsetY = widget1->getY() - 10;

uint8_t offsetX = widget1->getX() + 14;

uView.setCursor(offsetX, offsetY);

uView.print(" "); // erase the previous value in case it's longer

// calculate the offset to centre the value

offsetX += ((widget1->getMaxValLen() - widget1->getValLen()) * 3);

uView.setCursor(offsetX, offsetY);

uView.print(val);

}

// Update function for Demo 10

void customSlider2(int16_t val) {

uView.setCursor(widget1->getX() + 1, widget1->getY() + 24);

widget1->drawNumValue(val);

// calculate to reverse the pointer direction

widget1->setValue((int16_t) ((int32_t) widget1->getMaxValue() +

(int32_t) widget1->getMinValue() -

(int32_t) val));

}

// Update function for Demo 11

void customSlider3(int16_t val) {

int16_t maxVal = widget1->getMaxValue();

uint16_t range = (uint16_t) (maxVal - widget1->getMinValue());

uint8_t offsetX = widget1->getX() + 9;

// erase previous value.

// pointer position is calculated the same way as the widget code.

uint8_t offsetY = (float)(uint16_t)(maxVal - prevVal) / (float)range * 40;

uView.setCursor(offsetX, offsetY);

uView.print(" "); // This is being lazy. Should calculate width for value.

// draw new value

offsetY = (float)(uint16_t)(maxVal - val) / (float)range * 40;

uView.setCursor(offsetX, offsetY);

widget1->drawNumValue(val);

widget1->setValue(val);

}

// Update function for Demo 12

void customGauge0(int16_t val) {

widget1->setValue(val);

uView.setCursor(widget1->getX() - 17, widget1->getY() + 19);

uView.setFontType(1);

// add leading space if necessary, to right justify.

// only 2 digit (plus decimal) numbers are supported.

if (val < 100) {

uView.print(' ');

}

uView.print((float)val / 10, 1);

uView.setFontType(0);

}

// Update function for Demo 13

void customGauge1(int16_t val) {

widget1->setValue(val);

uView.setCursor(widget1->getX() - 2, widget1->getY() + 9);

uView.print((char)(val + 'A' - 1));

}

// Clear the screen buffer and draw the demo number in the corner

void demoNumber(int num) {

uView.clear(PAGE);

uView.setCursor(0, 0);

uView.print(num);

uView.print(":");

}

// Spin up, then down, through the values.

// For each value, call the update function and display the new screen.

void spin(int16_t lowVal, int16_t highVal, int16_t stepSize,

unsigned long stepDelay, void (*drawFunction)(int16_t val)) {

drawFunction(lowVal);

uView.display();

prevVal = lowVal;

delay(1500);

for (int16_t i = lowVal + stepSize; i <= highVal; i += stepSize) {

drawFunction(i);

uView.display();

prevVal = i;

delay(stepDelay);

if ((i == 0) && (lowVal != 0)) { // pause briefly for a value of 0

delay(750);

}

delay(1500);

for (int16_t i = highVal; i >= lowVal; i -= stepSize) {

drawFunction(i);

uView.display();

prevVal = i;

delay(stepDelay);

if ((i == 0) && (lowVal != 0)) { // pause briefly for a value of 0

delay(750);

}

delay(1500);

}

Digital Logic 01: Logic Gates

Digital Logic 02: Flip Flops

MicroView Widget Style Guide

MicroView Widget Styles – Sliders

MicroView Widget Styles – Gauges

MicroView Widget Styles – Custom Value Displays

You might also like

Changing the I2C Library…

I2C Display Add-on – Functionality Overview

HP QDSP6064 Bubble Display

AT25SF081 Tutorial 05: Erasing Memory

AT25SF081 Tutorial 01: Functionality Overview 02

Arduino from Scratch Part 7 – Arduino USB Connection

Decimal and Binary Number Conversion

USEFUL LINKS

CONNECT PEOPLE

CONTACT US