mirror of https://github.com/arendst/Tasmota.git
Added: Driver xdsp_20_tm1650 for I2C-based seven-segment LED controller TM1650. (#17549)
Co-authored-by: Stefan Oskamp <stefan@scinax.lan>
This commit is contained in:
Stefan Oskamp
GitHub
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e5fd35ba85
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@ -108,3 +108,4 @@ Index | Define | Driver | Device | Address(es) | Description
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71 | USE_QMC5883L | xsns_33 | QMC5883L | 0x0D | Magnetic Field Sensor
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72 | USE_INA3221 | xsns_100 | INA3221 | 0x40-0x43 | 3-channels Voltage and Current sensor
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73 | USE_HMC5883L | xsns_101 | HMC5883L | 0x1E | 3-channels Magnetic Field Sensor
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74 | USE_DISPLAY_TM1650 | xdsp_20 | TM1650 | 0x24 - 0x27, 0x34 - 0x37 | Four-digit seven-segment LED controller
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@ -861,8 +861,10 @@ void ResponseAppendFeatures(void)
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#ifdef USE_ME007
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feature9 |= 0x00000800; // xsns_23_me007.ino
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#endif
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#if defined(USE_I2C) && defined(USE_DISPLAY) && defined(USE_DISPLAY_TM1650)
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feature9 |= 0x00001000; // xdsp_20_tm1650.ino
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#endif
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// feature9 |= 0x00001000;
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// feature9 |= 0x00002000;
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// feature9 |= 0x00004000;
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// feature9 |= 0x00008000;
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@ -0,0 +1,331 @@
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/*
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xdsp_20_tm1650.ino - TM1650 four-digit seven-segment LED display controller support for Tasmota
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Copyright (C) 2021 Stefan Oskamp, Theo Arends, Anatoli Arkhipenko
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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The TM1650 chip is a controller for a four digit seven-segment (plus dot) LED display.
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It uses eight I2C addresses; four to control the digits and four to display content.
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The addresses are not configurable: 0x24...0x27, 0x34...0x37
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There is a Chinese datasheet on the Internet and a machine translation to English.
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The Controller also supports reading a keyboard matrix of 4 x 8 keys. This is not
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supported by this driver.
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The TM1650 is found in clocks with seven-segment LED displays, e.g., the "XY-Clock".
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In this clock, the dots of the display are connected to the controller in an unintuitive
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way. While digits are counted from left to right, the associated dots on the display
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are: 0 = rightmost dot, 1 = dot after third digit, 2 = upper half of the colon
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3 = lower half of the column. The dots after the first and second digits are not
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connected. This wiring of the XY-Clock has been reflected in the time format. Other
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clocks using a TM1650 might be wired differently.
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*/
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#ifdef USE_I2C
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#ifdef USE_DISPLAY
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#ifdef USE_DISPLAY_TM1650
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#include <Wire.h>
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#define XDSP_20 20
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#define XI2C_74 74 // See I2CDEVICES.md
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#define TM1650_CONTROL_BASE 0x24 // I2C address to control left-most digit.
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#define TM1650_DISPLAY_BASE 0x34 // I2C address to display something in the left-most digit.
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#define TM1650_DIGITS 4 // One TM1650 can only control modules with up to four digits.
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// TM1650 Display bits:
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#define TM1650_DISPLAY_DOT 7
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// TM1650 Control bits:
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#define TM1650_CONTROL_ON 0
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#define TM1650_CONTROL_RESERVED1 1
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#define TM1650_CONTROL_RESERVED2 2
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#define TM1650_CONTROL_DOT 3 // Dots can be switched on/off with both control and display.
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#define TM1650_CONTROL_BRIGHTNESS 4 // Bits 4...6
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#define TM1650_CONTROL_RESERVED3 7
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static unsigned char TM1650Control[TM1650_DIGITS] = {0, 0, 0, 0};
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static unsigned char TM1650Display[TM1650_DIGITS] = {0, 0, 0, 0};
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static const byte TM1650Font[128] {
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//0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x00
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x10
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0x00, 0x82, 0x21, 0x00, 0x00, 0x00, 0x00, 0x02, 0x39, 0x0F, 0x00, 0x00, 0x00, 0x40, 0x80, 0x00, // 0x20
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0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7f, 0x6f, 0x00, 0x00, 0x00, 0x48, 0x00, 0x53, // 0x30
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0x00, 0x77, 0x7C, 0x39, 0x5E, 0x79, 0x71, 0x6F, 0x76, 0x06, 0x1E, 0x00, 0x38, 0x00, 0x54, 0x3F, // 0x40
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0x73, 0x67, 0x50, 0x6D, 0x78, 0x3E, 0x00, 0x00, 0x00, 0x6E, 0x00, 0x39, 0x00, 0x0F, 0x00, 0x08, // 0x50
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0x63, 0x5F, 0x7C, 0x58, 0x5E, 0x7B, 0x71, 0x6F, 0x74, 0x02, 0x1E, 0x00, 0x06, 0x00, 0x54, 0x5C, // 0x60
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0x73, 0x67, 0x50, 0x6D, 0x78, 0x1C, 0x00, 0x00, 0x00, 0x6E, 0x00, 0x39, 0x30, 0x0F, 0x00, 0x00 // 0x70
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};
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/*********************************************************************************************/
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void TM1650InitMode(void)
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{
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TM1650Dim();
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TM1650Clear();
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} // void TM1650InitMode(void)
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void TM1650Init(uint8_t mode)
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{
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switch(mode) {
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case DISPLAY_INIT_MODE:
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TM1650InitMode();
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break;
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case DISPLAY_INIT_PARTIAL:
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case DISPLAY_INIT_FULL:
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TM1650InitMode();
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break;
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}
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} // void TM1650Init(uint8_t mode)
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void TM1650InitDriver(void)
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{
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// AddLog(LOG_LEVEL_DEBUG, PSTR("M1650InitDriver()"));
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if (!TasmotaGlobal.i2c_enabled) {
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return;
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}
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if (!Settings->display_model) {
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if (I2cSetDevice(TM1650_CONTROL_BASE)) {
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Settings->display_address[0] = TM1650_CONTROL_BASE;
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Settings->display_model = XDSP_20;
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}
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}
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if (XDSP_20 == Settings->display_model) {
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I2cSetActiveFound(Settings->display_address[0], "TM1650");
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Settings->display_cols[0] = 4;
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Settings->display_cols[0] = 1;
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Settings->display_width = Settings->display_cols[0];
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Settings->display_height = Settings->display_rows;
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TM1650InitMode();
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AddLog(LOG_LEVEL_INFO, PSTR("DSP: TM1650"));
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}
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} // void TM1650InitDriver(void)
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void TM1650DisplayOn ()
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{
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// AddLog(LOG_LEVEL_DEBUG, PSTR("TM1650DisplayOn()"));
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for (int i = 0; i < TM1650_DIGITS; i++) {
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TM1650Control[i] |= _BV(TM1650_CONTROL_ON);
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Wire.beginTransmission(TM1650_CONTROL_BASE + i);
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Wire.write(TM1650Control[i]);
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Wire.endTransmission();
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}
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} // void TM1650DisplayOn ()
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void TM1650DisplayOff ()
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{
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// AddLog(LOG_LEVEL_DEBUG, PSTR("TM1650DisplayOff()"));
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for (int i = 0; i < TM1650_DIGITS; i++) {
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TM1650Control[i] &= ~_BV(TM1650_CONTROL_ON);
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Wire.beginTransmission(TM1650_CONTROL_BASE + i);
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Wire.write(TM1650Control[i]);
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Wire.endTransmission();
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}
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} // void TM1650DisplayOff ()
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void TM1650DisplayOnOff()
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{
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if (disp_power) {
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TM1650DisplayOn();
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}
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else {
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TM1650DisplayOff();
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}
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} // void TM1650DisplayOnOff()
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void TM1650SetBrightness (unsigned int level)
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{
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// AddLog(LOG_LEVEL_DEBUG, PSTR("TM1650SetBrightness()"));
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if (level > 0b111) level = 0b111;
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for (int i = 0; i < TM1650_DIGITS; i++) {
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TM1650Control[i] = TM1650Control[i] & ~(0b111 << TM1650_CONTROL_BRIGHTNESS) | level << TM1650_CONTROL_BRIGHTNESS;
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Wire.beginTransmission(TM1650_CONTROL_BASE + i);
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Wire.write(TM1650Control[i]);
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Wire.endTransmission();
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}
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} // void TM1650SetBrightness (unsigned int level)
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void TM1650Dim(void)
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{
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int b = GetDisplayDimmer16();
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if (b < 2) {
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TM1650DisplayOff();
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}
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else if (b > 14) {
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TM1650DisplayOn();
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TM1650SetBrightness(0); // In TM1650, brightness 0 means max brightness (level 8).
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TM1650DisplayOn();
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}
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else {
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// Map 2...14 to 1...7:
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TM1650SetBrightness(b >> 1);
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TM1650DisplayOn();
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}
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} // void TM1650Dim(void)
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void TM1650Clear (void)
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{
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// AddLog(LOG_LEVEL_DEBUG, PSTR("TM1650Clear()"));
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for (int i = 0; i < TM1650_DIGITS; i++) {
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TM1650Display[i] = 0;
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Wire.beginTransmission(TM1650_DISPLAY_BASE + i);
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Wire.write(TM1650Display[i]);
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Wire.endTransmission();
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}
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} // void TM1650Clear (void)
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void TM1650DisplayText (char *text) // Text shall match regex (([^.]?\.?){0,4}\0), e.g., 123.4
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{
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// AddLog(LOG_LEVEL_DEBUG, PSTR("TM1650DisplayText(\"%s\")"), text);
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for (int i = 0; i < TM1650_DIGITS; i++) {
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if (*text != 0) {
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if (*text == '.') {
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TM1650Display[i] = 0; // Blank this digit, set the dot below.
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}
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else { // Something to display.
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char c = *text++;
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TM1650Display[i] = TM1650Font[c & ~_BV(TM1650_DISPLAY_DOT)];
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}
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if (*text == '.') {
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char c = *text++;
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TM1650Display[i] |= _BV(TM1650_DISPLAY_DOT);
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}
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} // if (not at end of text)
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else { // No more text.
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TM1650Display[i] = 0; // Clear digits after the text.
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}
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Wire.beginTransmission(TM1650_DISPLAY_BASE + i);
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Wire.write(TM1650Display[i]);
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Wire.endTransmission();
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} // for (all digits)
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} // void TM1650DisplayText (char *text)
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void TM1650Time(void)
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{
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// AddLog(LOG_LEVEL_DEBUG, PSTR("TM1650Time()"));
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char text[TM1650_DIGITS + 2 + 1];
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int i = 0;
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text[i++] = '0' + RtcTime.hour / 10;
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text[i++] = '0' + RtcTime.hour % 10;
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text[i++] = '0' + RtcTime.minute / 10;
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text[i++] = '.'; // Lower half of the colon, depending on how the LEDs are connected to the TM1650 in the XY-Clock.
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text[i++] = '0' + RtcTime.minute % 10;
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text[i++] = '.'; // Upper half of the colon.
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text[i++] = 0;
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TM1650DisplayText(text);
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} // void TM1650Time(void)
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void TM1650Refresh(void) // Every second
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{
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if (Settings->display_mode) { // Mode 0 is User text
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switch (Settings->display_mode) {
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case 1: // Time
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TM1650Time();
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break;
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case 2: // Local
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case 4: // Mqtt
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// TM1650PrintLog();
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break;
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case 3: // Local
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case 5:
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// // Mqtt
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// if (!TM1650PrintLog()) {
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// TM1650Time();
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// }
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break;
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}
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}
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} // void TM1650Refresh(void)
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/*********************************************************************************************\
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* Interface
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\*********************************************************************************************/
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bool Xdsp20(uint32_t function)
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{
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if (!I2cEnabled(XI2C_74)) { return false; }
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bool result = false;
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if (FUNC_DISPLAY_INIT_DRIVER == function) {
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TM1650InitDriver();
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}
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else if (XDSP_20 == Settings->display_model) {
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switch (function) {
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case FUNC_DISPLAY_MODEL:
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result = true;
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break;
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case FUNC_DISPLAY_INIT:
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TM1650Init(dsp_init);
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break;
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case FUNC_DISPLAY_POWER:
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TM1650DisplayOnOff();
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break;
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case FUNC_DISPLAY_DIM:
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TM1650Dim();
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break;
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case FUNC_DISPLAY_CLEAR:
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TM1650Clear();
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break;
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case FUNC_DISPLAY_DRAW_STRING:
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TM1650DisplayText(dsp_str);
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break;
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#ifdef USE_DISPLAY_MODES1TO5
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case FUNC_DISPLAY_EVERY_SECOND:
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TM1650Refresh();
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break;
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#endif // USE_DISPLAY_MODES1TO5
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// case FUNC_DISPLAY_DRAW_HLINE:
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// break;
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// case FUNC_DISPLAY_DRAW_VLINE:
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// break;
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// case FUNC_DISPLAY_DRAW_CIRCLE:
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// break;
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// case FUNC_DISPLAY_FILL_CIRCLE:
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// break;
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// case FUNC_DISPLAY_DRAW_RECTANGLE:
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// break;
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// case FUNC_DISPLAY_FILL_RECTANGLE:
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// break;
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// case FUNC_DISPLAY_DRAW_FRAME:
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// break;
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// case FUNC_DISPLAY_TEXT_SIZE:
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// break;
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// case FUNC_DISPLAY_FONT_SIZE:
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// break;
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// case FUNC_DISPLAY_ROTATION:
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// break;
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} // switch (function)
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} // else if (display model matches)
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return result;
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} // bool Xdsp20(uint32_t function)
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#endif // USE_DISPLAY_TM1650
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#endif // USE_DISPLAY
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#endif // USE_I2C
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