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New driver for I2C HT16K33 backpack 7 segment LED

This commit is contained in:
Khoa Ton 2020-04-10 01:02:23 -07:00
parent 6da4ec4404
commit eb796f8976
3 changed files with 310 additions and 0 deletions
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1
I2CDEVICES.md
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@ -67,3 +67,4 @@ Index | Define | Driver | Device | Address(es) | Description
43 | USE_AHT1x | xsns_63 | AHT10/15 | 0x38 | Temperature and humidity sensor
44 | USE_WEMOS_MOTOR_V1 | xdrv_34 | | 0x2D - 0x30 | WEMOS motor shield v1.0.0 (6612FNG)
45 | USE_HDC1080 | xsns_65 | HDC1080 | 0x40 | Temperature and Humidity sensor
46 | USE_DISPLAY_SEVENSEG| xdsp_11 | HT16K33 | 0x70 - 0x77 | Seven segment LED

4
tasmota/my_user_config.h
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@ -502,6 +502,8 @@
// #define USE_DISPLAY // Add I2C Display Support (+2k code)
#define USE_DISPLAY_MODES1TO5 // Enable display mode 1 to 5 in addition to mode 0
#define USE_DISPLAY_LCD // [DisplayModel 1] [I2cDriver3] Enable Lcd display (I2C addresses 0x27 and 0x3F) (+6k code)
#define USE_DISPLAY_LCD_ROWS 4 // Rows of display
#define USE_DISPLAY_LCD_COLS 20 // Columns of display
#define USE_DISPLAY_SSD1306 // [DisplayModel 2] [I2cDriver4] Enable SSD1306 Oled 128x64 display (I2C addresses 0x3C and 0x3D) (+16k code)
#define USE_DISPLAY_MATRIX // [DisplayModel 3] [I2cDriver5] Enable 8x8 Matrix display (I2C adresseses see below) (+11k code)
#define MTX_ADDRESS1 0x71 // [DisplayAddress1] I2C address of first 8x8 matrix module
@ -512,6 +514,8 @@
#define MTX_ADDRESS6 0x76 // [DisplayAddress6] I2C address of sixth 8x8 matrix module
#define MTX_ADDRESS7 0x00 // [DisplayAddress7] I2C address of seventh 8x8 matrix module
#define MTX_ADDRESS8 0x00 // [DisplayAddress8] I2C address of eigth 8x8 matrix module
#define USE_DISPLAY_SEVENSEG // [DisplayModel 11] [I2cDriver46] Enable sevenseg display (I2C 0x70-0x77) (<+11k code)
#define SEVENSEG_ADDRESS1 0x70 // [DisplayAddress1] I2C address of first sevenseg matrix module
// #define USE_DISPLAY_SH1106 // [DisplayModel 7] [I2cDriver6] Enable SH1106 Oled 128x64 display (I2C addresses 0x3C and 0x3D)
#endif // USE_I2C

305
tasmota/xdsp_11_sevenseg.ino Normal file
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@ -0,0 +1,305 @@
/*
xdsp_03_matrix.ino - Display 8x8 matrix support for Tasmota
Copyright (C) 2020 Theo Arends and Adafruit
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/>.
*/
#ifdef USE_I2C
#ifdef USE_DISPLAY
#ifdef USE_DISPLAY_SEVENSEG
#define XDSP_11 11
#define XI2C_46 46 // See I2CDEVICES.md
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_LEDBackpack.h> // Seven segment LED
Adafruit_7segment sevenseg = Adafruit_7segment();
uint8_t sevenseg_state = 0;
/*********************************************************************************************/
void SevensegWrite(void)
{
sevenseg.writeDisplay();
}
void SevensegClear(void)
{
sevenseg.clear();
SevensegWrite();
}
/*********************************************************************************************/
void SevensegInitMode(void)
{
sevenseg.setBrightness(Settings.display_dimmer);
sevenseg.blinkRate(0); // 0 - 3
SevensegClear();
}
void SevensegInit(uint8_t mode)
{
switch(mode) {
case DISPLAY_INIT_MODE:
case DISPLAY_INIT_PARTIAL:
case DISPLAY_INIT_FULL:
SevensegInitMode();
break;
}
}
void SevensegInitDriver(void)
{
if (!Settings.display_model) {
if (I2cSetDevice(SEVENSEG_ADDRESS1)) {
Settings.display_model = XDSP_11;
}
}
if (XDSP_11 == Settings.display_model) {
sevenseg_state = 1;
sevenseg.begin(SEVENSEG_ADDRESS1);
Settings.display_width = 4;
Settings.display_height = 1;
SevensegInitMode();
}
}
void SevensegOnOff(void)
{
if (!disp_power) { SevensegClear(); }
}
void SevensegDrawStringAt(uint16_t x, uint16_t y, char *str, uint16_t color, uint8_t flag)
{
uint16_t number = 0;
boolean hasnumber= false;
uint8_t dots= 0;
boolean t=false;
boolean T=false;
boolean d=false;
boolean hex=false;
boolean done=false;
boolean s=false;
for (int i=0; (str[i]!='\0') && (!done); i++) {
// [prefix(es) chars]digits
// Some combinations won't make sense.
// Reference: https://learn.adafruit.com/adafruit-led-backpack/1-2-inch-7-segment-backpack-arduino-wiring-and-setup
// Valid combinations:
// x32 => 20
// st:241 => 04:01
// sT240 => 4 01
switch (str[i]) {
case 'x': // print given dec value as hex
hex = true;
break;
case ':': // print colon
dots |= 0x02;
break;
case '^': // print top_left_dot
dots |= 0x08;
break;
case 'v': // print bottom_left_dot
dots |= 0x04;
break;
case '.': // print ampm
dots |= 0x10;
break;
case 'T': // print as time 12 format
t = true;
break;
case 't': // print as time 24 format
T = true;
break;
case 's': // duration in seconds
s = true;
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
hasnumber= true;
number = atoi(str+i);
done = true;
break;
default: // unknown format, ignore
break;
}
}
if (s) {
// number is duration in seconds
hex = false;
int hour = number/60/60;
int minute = (number/60)%60;
if (hour) {
// HH:MM
number = hour*100 + minute;
} else {
// MM:SS
number = minute*100 + number%60;
}
}
if (hasnumber) {
if (hex) {
sevenseg.print(number, HEX);
} else {
sevenseg.print(number, DEC);
}
}
if (dots) {
sevenseg.writeDigitRaw(2, dots);
}
sevenseg.writeDisplay();
}
/*********************************************************************************************/
#ifdef USE_DISPLAY_MODES1TO5
void SevensegTime(boolean time_24)
{
uint hours = RtcTime.hour;
uint minutes = RtcTime.minute;
uint second = RtcTime.second;
uint16_t displayValue = hours * 100 + minutes;
uint16_t dots = 0;
// Do 24 hour to 12 hour format conversion when required.
if (!time_24) {
// Handle when hours are past 12 by subtracting 12 hours (1200 value).
if (hours > 12) {
displayValue -= 1200;
}
// Handle hour 0 (midnight) being shown as 12.
else if (hours == 0) {
displayValue += 1200;
}
}
// Now print the time value to the display.
sevenseg.print(displayValue, DEC);
// Add zero padding when in 24 hour mode and it's midnight.
// In this case the print function above won't have leading 0's
// which can look confusing. Go in and explicitly add these zeros.
if (time_24) {
if (hours == 0) {
// Pad hour 0.
sevenseg.writeDigitNum(1, 0);
// Also pad when the 10's minute is 0 and should be padded.
if (minutes < 10) {
sevenseg.writeDigitNum(3, 0);
}
}
if (hours < 10) {
// Always have 4 digits time
sevenseg.writeDigitNum(0, 0);
}
} else {
// Identify and display AM/PM
if (hours >= 12) {
dots |= 0x10;
}
}
sevenseg.writeDigitRaw(2, dots |= ((second%2) << 1));
sevenseg.writeDisplay();
}
#endif // USE_DISPLAY_MODES1TO5
void SevensegRefresh(void) // Every second
{
if (disp_power) {
if (Settings.display_mode) { // Mode 0 is User text
switch (Settings.display_mode) {
case 1: // Time 12
SevensegTime(false);
break;
case 2: // Time 24
SevensegTime(true);
break;
case 4: // Mqtt
case 3: // Local
case 5: { // Mqtt
break;
}
}
}
}
}
/*********************************************************************************************\
* Interface
\*********************************************************************************************/
bool Xdsp11(uint8_t function)
{
if (!I2cEnabled(XI2C_46)) { return false; }
bool result = false;
if (FUNC_DISPLAY_INIT_DRIVER == function) {
SevensegInitDriver();
}
else if (XDSP_11 == Settings.display_model) {
switch (function) {
case FUNC_DISPLAY_MODEL:
result = true;
break;
case FUNC_DISPLAY_INIT:
SevensegInit(dsp_init);
break;
case FUNC_DISPLAY_CLEAR:
SevensegClear();
break;
case FUNC_DISPLAY_EVERY_SECOND:
SevensegRefresh();
break;
case FUNC_DISPLAY_ONOFF:
case FUNC_DISPLAY_POWER:
SevensegOnOff();
break;
case FUNC_DISPLAY_DRAW_STRING:
SevensegDrawStringAt(dsp_x, dsp_y, dsp_str, dsp_color, dsp_flag);
break;
}
}
return result;
}
#endif // USE_DISPLAY_MATRIX
#endif // USE_DISPLAY
#endif // USE_I2C