Serial Wombat Arduino Library

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SerialWombatTM1637.h
Go to the documentation of this file.
1#pragma once
2/*
3 Copyright 2021-2023 Broadwell Consulting Inc.
4
5"Serial Wombat" is a registered trademark of Broadwell Consulting Inc. in
6 the United States. See SerialWombat.com for usage guidance.
7
8 Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14
15 The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
22 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
23 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
24 * OTHER DEALINGS IN THE SOFTWARE.
25*/
26
27#include <stdint.h>
28#include "SerialWombat.h"
29
30 enum SWTM1637Mode {
31 tm1637Decimal16 = 0,
32 tm1637Hex16 = 1,
33 tm1637CharArray = 2,
34 tm1637RawArray = 3,
35 tm1637Animation = 4,
36};
37
74 class SerialWombatTM1637:public Print, public SerialWombatPin
75{
76 public:
81 SerialWombatTM1637(SerialWombatChip& serialWombat): SerialWombatPin(serialWombat)
82 {
83 }
84
96 int16_t begin(uint8_t clkPin, uint8_t dioPin, uint8_t digits, SWTM1637Mode mode, uint8_t dataSourcePin, uint8_t brightness0to7)
97 {
98 _pin = clkPin;
99 uint8_t tx_200[8] = {
100 200, // Pin Set command
101 clkPin,
102 11, // TM1637
103 dioPin,
104 digits,
105 (uint8_t)mode,
106 dataSourcePin,
107 brightness0to7,
108 };
109 int16_t retval = _sw.sendPacket(tx_200);
110 return retval;
111 }
112
113
114 /*
115 \brief Used to reorder the digits of the display to match display hardware.
116
117 TM1637 displays do not have a standardized wiring of LED module to the TM1637 driver pins.
118 This can cause numbers to appear in the wrong order.
119 This can be fixed by displaying the string "012345" on the display. If it appears out of
120 order, then issue this command with the parameters matching what is displayed on the screen.
121
122 For instance, if a Six digit display showed 210543 when commanded to show "012345", calling
123 \code
124 orderDigits(2,1,0,5,4,3);
125 \endcode
126 after begin() would cause the driver to reorder the output to make the display appear in the desired order.
127
128 \return Returns a negative error code if errors occur during configuration
129 */
130 int16_t writeDigitOrder(uint8_t first, uint8_t second, uint8_t third, uint8_t fourth, uint8_t fifth, uint8_t sixth )
131 {
132 uint8_t tx_201[8] = {
133 201, // Pin Set command
134 _pin,
135 11, // TM1637
136 first,
137 second,
138 third,
139 fourth,
140 fifth,
141 };
142 int retval = _sw.sendPacket(tx_201);
143 if (retval < 0)
144 {
145 return retval;
146 }
147 uint8_t tx_202[8] = {
148 202, // Pin Set command
149 _pin,
150 11, // TM1637
151 sixth,
152 0x55,
153 0x55,
154 0x55,
155 0x55,
156 };
157 return _sw.sendPacket(tx_202);
158 }
159
160 /*
161 \brief Used to send data to the data array of the driver.
162
163 \param data A 6 byte array that is sent to the display driver
164 \return Returns a negative error code if errors occur during configuration
165
166 The meaning of this data varies based on mode. See examples.
167 */
168 int16_t writeArray(uint8_t data[6])
169 {
170 uint8_t tx_204[8] = {
171 204, // Pin Set command
172 _pin,
173 11, // TM1637
174 data[0],
175 data[1],
176 data[2],
177 data[3],
178 data[4],
179 };
180 int retval = _sw.sendPacket(tx_204);
181 if (retval < 0)
182 {
183 return retval;
184 }
185 uint8_t tx_205[8] = {
186 205, // Pin Set command
187 _pin,
188 11, // TM1637
189 data[5],
190 0x55,
191 0x55,
192 0x55,
193 0x55,
194 };
195 return _sw.sendPacket(tx_205);
196 }
197
198 /*
199 \brief Set a bitmap of the MSB of each digit to control decimal points
200
201 Note that TM1637 decimal point implementation varies greatly depending on the
202 display manufacturer. Setting bits may or may not cause decimal points to display,
203 the clock colon to display, or other undefined behavior. Unexpected behavior is likely
204 the result of display pcb implementation, not an issue with this library or the Serial Wombat
205 firmware.
206 \param decimalBitmapLSBleftDigit A bitmap indicating if the decimal for each digit should be lit. LSB is first digit Valid values are 0 - 0x3F
207 \return Returns a negative error code if errors occur during configuration
208
209 */
210 int16_t writeDecimalBitmap(uint8_t decimalBitmapLSBleftDigit)
211 {
212 uint8_t tx_206[8] = {
213 206, // Pin Set command
214 _pin,
215 11, // TM1637
216 decimalBitmapLSBleftDigit,
217 0x55,
218 0x55,
219 0x55,
220 0x55,
221 };
222 return _sw.sendPacket(tx_206);
223 }
224
225 /*
226 \brief Changes the brightness of the display
227
228 \param Brightness - a value from 0 (dimmest) to 7 (brightest) based on the TM1637 hardware. This scale is not linear.
229 \return Returns a negative error code if errors occur during configuration
230 */
231 int16_t writeBrightness(uint8_t brightness0to7)
232 {
233 uint8_t tx_203[8] = {
234 203, // Pin Set command
235 _pin,
236 11, // TM1637
237 brightness0to7,
238 0x55,
239 0x55,
240 0x55,
241 0x55,
242 };
243 return _sw.sendPacket(tx_203);
244 }
245
246 /*
247 \brief Loads an animation to the Serial Wombat user buffer area and initializes the animation
248
249 The pin should have previously been initialized with the begin() command an animation mode prior to
250 this call.
251
252 \param bufferIndex The index into the User Buffer where the data for the animation should be stored
253 \param delay How long the animation display driver should wait between loading new data
254 \param Number of Frames to be displayed before returning to the first frame. This should be the number of lines in data
255 \param data A 2 dimensional array of width 6 and arbitrary length.
256 \return Returns a negative error code if errors occur during configuration
257 */
258 int16_t writeAnimation(uint16_t bufferIndex, uint16_t delay, uint8_t numberOfFrames, uint8_t data[][6])
259 {
260 int result = _sw.writeUserBuffer(bufferIndex, (uint8_t*)data, numberOfFrames * 6);
261
262 if (result < 0)
263 {
264 return result;
265 }
266 uint8_t settings[] = { SW_LE16(bufferIndex), SW_LE16(delay), numberOfFrames, 0 };
267 return writeArray(settings);
268
269 }
270
271 /*
272 \brief Whether or not to suppress leading zeros in decimal mode
273
274 \return Returns a negative error code if errors occur during configuration
275 \param supress true: suppress leading zeros false: Do not suppress leading zeros
276 */
277 int16_t suppressLeadingZeros(bool suppress)
278 {
279 uint8_t tx_203[8] = {
280 203, // Pin Set command
281 _pin,
282 11, // TM1637
283 0x55, // Don't change brightness
284 suppress?(uint8_t)1:(uint8_t)0,
285 0x55,
286 0x55,
287 0x55,
288 };
289 return _sw.sendPacket(tx_203);
290 }
291
292 /*
293 \brief Set a bitmap of the digits that should blink at 2Hz with 7/8 duty cycle
294
295 This function is useful for creating user interfaces where the user increments or decrements
296 one digit of a number at a time. The blinking digit indicates the digit that will change.
297
298 \param blinkBitmap A bitmap indicating if the decimal for each digit should be lit. LSB is first digit Valid values are 0 - 0x3F. 1 = blink
299 \return Returns a negative error code if errors occur during configuration
300
301 */
302 int16_t writeBlinkBitmap(uint8_t blinkBitmapLSBleftDigit)
303 {
304 uint8_t tx_207[8] = {
305 207, // Pin Set command
306 _pin,
307 11, // TM1637
308 blinkBitmapLSBleftDigit,
309 0x55,
310 0x55,
311 0x55,
312 0x55,
313 };
314 return _sw.sendPacket(tx_207);
315 }
316
317
318 /*
319 \brief Write a byte to String mode, shifting other characters
320
321 This function allows the TM1637 mode to use Arduino Print statements.
322
323 \param data Byte to be written to display
324 \return Number of bytes written
325
326 */
327 size_t write(uint8_t data)
328 {
329 uint8_t tx[8] = {
330 (uint8_t)SerialWombatCommands::CONFIGURE_PIN_MODE8, // Pin Set command
331 _pin,
332 PIN_MODE_TM1637, // TM1637
333 1,
334 data,
335 0x55,
336 0x55,
337 0x55,
338 };
339 if (_sw.sendPacket(tx) < 0)
340 {
341 return 0;
342 }
343 else
344 {
345 return 1;
346 }
347 }
348
349 size_t write(const uint8_t* buffer, size_t size)
350 {
351 size_t initialSize = size;
352 if (size > 6) // We can only display 6 characters. Skip the first ones if more than 6
353 {
354 buffer += size - 6;
355 size = 6;
356 }
357 if (size > 4)
358 {
359 uint8_t tx[8] = {
360 (uint8_t)SerialWombatCommands::CONFIGURE_PIN_MODE8, // Pin Set command
361 _pin,
362 PIN_MODE_TM1637, // TM1637
363 4,
364 buffer[0],
365 buffer[1],
366 buffer[2],
367 buffer[3],
368 };
369 _sw.sendPacket(tx);
370 size -= 4;
371 buffer += 4;
372 }
373
374 {
375 uint8_t tx[8] = {
376 (uint8_t)SerialWombatCommands::CONFIGURE_PIN_MODE8, // Pin Set command
377 _pin,
378 PIN_MODE_TM1637, // TM1637
379 (uint8_t)size,
380 buffer[0],
381 size > 1 ? buffer[1] : (uint8_t)0x55,
382 size > 2 ? buffer[2] : (uint8_t)0x55,
383 size > 3 ? buffer[3] : (uint8_t)0x55,
384 };
385 _sw.sendPacket(tx);
386 }
387 return size_t(initialSize);
388 }
389
390 virtual int availableForWrite() { return 100; } // We will throw out everthing but the last 6.
391 using Print::write;
392
393 private:
394
395 uint8_t _dioPin = 255;
396};
397
SerialWombat.h
SW_LE16
#define SW_LE16(_a)
Convert a uint16_t to two bytes in little endian format for array initialization.
Definition SerialWombat.h:41
SerialWombatCommands::CONFIGURE_PIN_MODE8
@ CONFIGURE_PIN_MODE8
(208)
Definition SerialWombat.h:236
PIN_MODE_TM1637
@ PIN_MODE_TM1637
(11)
Definition SerialWombat.h:261
SWTM1637Mode
SWTM1637Mode
Definition SerialWombatTM1637.h:30
tm1637Decimal16
@ tm1637Decimal16
Get the number to display from a pin or data source and display in decimal.
Definition SerialWombatTM1637.h:31
tm1637Animation
@ tm1637Animation
Definition SerialWombatTM1637.h:35
tm1637CharArray
@ tm1637CharArray
Display a string sent by the host.
Definition SerialWombatTM1637.h:33
tm1637RawArray
@ tm1637RawArray
Display raw LED segments sent by the host.
Definition SerialWombatTM1637.h:34
tm1637Hex16
@ tm1637Hex16
Get the number to display from a pin or data source and display in hex.
Definition SerialWombatTM1637.h:32
SerialWombatChip
Class for a Serial Wombat chip. Each Serial Wombat chip on a project should have its own instance.
Definition SerialWombat.h:297
SerialWombatPin::_sw
SerialWombatChip & _sw
Definition SerialWombatPin.h:194
SerialWombatPin::SerialWombatPin
SerialWombatPin(SerialWombatChip &serialWombatChip)
Instantiates a Serial Wombat Pin.
Definition SerialWombatPin.h:45
SerialWombatPin::_pin
uint8_t _pin
Definition SerialWombatPin.h:193
SerialWombatTM1637::writeBlinkBitmap
int16_t writeBlinkBitmap(uint8_t blinkBitmapLSBleftDigit)
Definition SerialWombatTM1637.h:302
SerialWombatTM1637::suppressLeadingZeros
int16_t suppressLeadingZeros(bool suppress)
Definition SerialWombatTM1637.h:277
SerialWombatTM1637::writeDigitOrder
int16_t writeDigitOrder(uint8_t first, uint8_t second, uint8_t third, uint8_t fourth, uint8_t fifth, uint8_t sixth)
Definition SerialWombatTM1637.h:130
SerialWombatTM1637::write
size_t write(uint8_t data)
Definition SerialWombatTM1637.h:327
SerialWombatTM1637::writeAnimation
int16_t writeAnimation(uint16_t bufferIndex, uint16_t delay, uint8_t numberOfFrames, uint8_t data[][6])
Definition SerialWombatTM1637.h:258
SerialWombatTM1637::writeArray
int16_t writeArray(uint8_t data[6])
Definition SerialWombatTM1637.h:168
SerialWombatTM1637::writeBrightness
int16_t writeBrightness(uint8_t brightness0to7)
Definition SerialWombatTM1637.h:231
SerialWombatTM1637::writeDecimalBitmap
int16_t writeDecimalBitmap(uint8_t decimalBitmapLSBleftDigit)
Definition SerialWombatTM1637.h:210
SerialWombatTM1637::begin
int16_t begin(uint8_t clkPin, uint8_t dioPin, uint8_t digits, SWTM1637Mode mode, uint8_t dataSourcePin, uint8_t brightness0to7)
Initialize an instance of the TM1637 class.
Definition SerialWombatTM1637.h:96
SerialWombatTM1637::write
size_t write(const uint8_t *buffer, size_t size)
Definition SerialWombatTM1637.h:349
SerialWombatTM1637::SerialWombatTM1637
SerialWombatTM1637(SerialWombatChip &serialWombat)
Constructor for SerialWombatTM1637 class.
Definition SerialWombatTM1637.h:81
SerialWombatTM1637::availableForWrite
virtual int availableForWrite()
Definition SerialWombatTM1637.h:390