/* xdrv_37_sonoff_d1.ino - sonoff D1 dimmer support for Tasmota Copyright (C) 2021 Theo Arends 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 . */ #ifdef USE_LIGHT #ifdef USE_SONOFF_D1 /*********************************************************************************************\ * Sonoff D1 dimmer 433 * * 0 1 2 3 4 5 6 7 8 9 A B C D E F 10 * AA 55 - Header * 01 04 - Version? * 00 0A - Following data length (10 bytes) * 01 - Power state (00 = off, 01 = on, FF = ignore) * 64 - Dimmer percentage (01 to 64 = 1 to 100%) * FF FF FF FF FF FF FF FF - Not used * 6C - CRC over bytes 2 to F (Addition) \*********************************************************************************************/ #define XDRV_37 37 struct SONOFFD1 { uint8_t receive_len = 0; uint8_t power = 255; // Not initialized uint8_t dimmer = 255; // Not initialized } SnfD1; /********************************************************************************************/ void SonoffD1Received(void) { if (TasmotaGlobal.serial_in_byte_counter < 8) { return; } // Received ack from Rf chip (aa 55 01 04 00 00 05) uint8_t action = TasmotaGlobal.serial_in_buffer[6] & 1; if (action != SnfD1.power) { SnfD1.power = action; // AddLog(LOG_LEVEL_DEBUG, PSTR("SD1: Remote power (%d, %d)"), SnfD1.power, SnfD1.dimmer); ExecuteCommandPower(1, action, SRC_SWITCH); } uint8_t dimmer = TasmotaGlobal.serial_in_buffer[7]; if (dimmer != SnfD1.dimmer) { SnfD1.dimmer = dimmer; // AddLog(LOG_LEVEL_DEBUG, PSTR("SD1: Remote dimmer (%d, %d)"), SnfD1.power, SnfD1.dimmer); char scmnd[20]; snprintf_P(scmnd, sizeof(scmnd), PSTR(D_CMND_DIMMER " %d"), SnfD1.dimmer); ExecuteCommand(scmnd, SRC_SWITCH); } /* // Send Acknowledge - Copy first 5 bytes, reset byte 6 and store crc in byte 7 // AA 55 01 04 00 00 05 TasmotaGlobal.serial_in_buffer[5] = 0; // Ack TasmotaGlobal.serial_in_buffer[6] = 0; // Crc for (uint32_t i = 0; i < 7; i++) { if ((i > 1) && (i < 6)) { TasmotaGlobal.serial_in_buffer[6] += TasmotaGlobal.serial_in_buffer[i]; } Serial.write(TasmotaGlobal.serial_in_buffer[i]); } */ } bool SonoffD1SerialInput(void) { if (0xAA == TasmotaGlobal.serial_in_byte) { // 0xAA - Start of text TasmotaGlobal.serial_in_byte_counter = 0; SnfD1.receive_len = 7; } if (SnfD1.receive_len) { TasmotaGlobal.serial_in_buffer[TasmotaGlobal.serial_in_byte_counter++] = TasmotaGlobal.serial_in_byte; if (6 == TasmotaGlobal.serial_in_byte_counter) { SnfD1.receive_len += TasmotaGlobal.serial_in_byte; // 8 or 17 } if (TasmotaGlobal.serial_in_byte_counter == SnfD1.receive_len) { // Sonoff D1 codes // aa 55 01 04 00 0a 01 01 ff ff ff ff ff ff ff ff 09 - Power On, Dimmer 1% // aa 55 01 04 00 0a 01 28 ff ff ff ff ff ff ff ff 30 - Power On, Dimmer 40% // aa 55 01 04 00 0a 01 3c ff ff ff ff ff ff ff ff 44 - Power On, Dimmer 60% // aa 55 01 04 00 0a 01 64 ff ff ff ff ff ff ff ff 6c - Power On, Dimmer 100% // aa 55 01 04 00 0a 00 64 ff ff ff ff ff ff ff ff 6b - Power Off (with last dimmer 100%) // aa 55 01 04 00 0a 01 64 ff ff ff ff ff ff ff ff 6c - Power On (with last dimmer 100%) AddLogSerial(); uint8_t crc = 0; for (uint32_t i = 2; i < SnfD1.receive_len -1; i++) { crc += TasmotaGlobal.serial_in_buffer[i]; } if (crc == TasmotaGlobal.serial_in_buffer[SnfD1.receive_len -1]) { SonoffD1Received(); SnfD1.receive_len = 0; return true; } } TasmotaGlobal.serial_in_byte = 0; } return false; } /********************************************************************************************/ void SonoffD1Send() { // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 uint8_t buffer[17] = { 0xAA,0x55,0x01,0x04,0x00,0x0A,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00 }; buffer[6] = SnfD1.power; buffer[7] = SnfD1.dimmer; for (uint32_t i = 0; i < sizeof(buffer); i++) { if ((i > 1) && (i < sizeof(buffer) -1)) { buffer[16] += buffer[i]; } Serial.write(buffer[i]); } } bool SonoffD1SendPower(void) { uint8_t action = XdrvMailbox.index &1; if (action != SnfD1.power) { SnfD1.power = action; // AddLog(LOG_LEVEL_DEBUG, PSTR("SD1: Tasmota power (%d, %d)"), SnfD1.power, SnfD1.dimmer); SonoffD1Send(); } return true; } bool SonoffD1SendDimmer(void) { uint8_t dimmer = LightGetDimmer(1); dimmer = (dimmer < Settings->dimmer_hw_min) ? Settings->dimmer_hw_min : dimmer; dimmer = (dimmer > Settings->dimmer_hw_max) ? Settings->dimmer_hw_max : dimmer; if (dimmer != SnfD1.dimmer) { SnfD1.dimmer = dimmer; // AddLog(LOG_LEVEL_DEBUG, PSTR("SD1: Tasmota dimmer (%d, %d)"), SnfD1.power, SnfD1.dimmer); SonoffD1Send(); } return true; } bool SonoffD1ModuleSelected(void) { SetSerial(9600, TS_SERIAL_8N1); UpdateDevicesPresent(1); TasmotaGlobal.light_type = LT_SERIAL1; return true; } /*********************************************************************************************\ * Interface \*********************************************************************************************/ bool Xdrv37(uint32_t function) { bool result = false; if (SONOFF_D1 == TasmotaGlobal.module_type) { switch (function) { case FUNC_SERIAL: result = SonoffD1SerialInput(); break; case FUNC_SET_DEVICE_POWER: result = SonoffD1SendPower(); break; case FUNC_SET_CHANNELS: result = SonoffD1SendDimmer(); break; case FUNC_MODULE_INIT: result = SonoffD1ModuleSelected(); break; } } return result; } #endif // USE_SONOFF_D1 #endif // USE_LIGHT