mirror of https://github.com/arendst/Tasmota.git
136 lines
4.5 KiB
C++
136 lines
4.5 KiB
C++
/*
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xsns_85_mpu6886.ino - MPU6886/MPU9250 accelerometer support for Tasmota
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Copyright (C) 2021 Stephan Hadinger and Theo Arends
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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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#ifdef USE_I2C
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#if defined(USE_MPU6886) || defined(USE_MPU_ACCEL) // USE_MPU6886 deprecated, prefer USE_MPU_ACCEL
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#include <MPU_accel.h>
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/*********************************************************************************************\
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* MPU6886/MPU9250
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* Internal chip found in M5Stack devices, using `Wire1` internal I2C bus
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*
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* I2C Address: 0x68
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*
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\*********************************************************************************************/
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#define XSNS_85 85
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#define XI2C_58 58 // See I2CDEVICES.md
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#define MPU_ACCEL_ADDRESS 0x68
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struct {
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MPU_accel Mpu;
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uint32_t mpu_model;
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int16_t ax=0, ay=0, az=0; // accelerator data
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int16_t gyx=0, gyy=0, gyz=0; // accelerator data
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uint8_t bus = 0; // I2C bus
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bool ready = false;
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} mpu_sensor;
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/********************************************************************************************/
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const char HTTP_MPU6686[] PROGMEM =
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"{s}MPU%d acc_x" "{m}%3_f G" "{e}"
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"{s}MPU%d acc_y" "{m}%3_f G" "{e}"
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"{s}MPU%d acc_z" "{m}%3_f G" "{e}"
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"{s}MPU%d gyr_x" "{m}%i dps" "{e}"
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"{s}MPU%d gyr_y" "{m}%i dps" "{e}"
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"{s}MPU%d gyr_z" "{m}%i dps" "{e}"
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;
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void MPU_Show(uint32_t json) {
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if (json) {
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ResponseAppend_P(PSTR(",\"MPU%d\":{\"AX\":%i,\"AY\":%i,\"AZ\":%i,\"GX\":%i,\"GY\":%i,\"GZ\":%i}"),
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mpu_sensor.mpu_model,
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mpu_sensor.ax, mpu_sensor.ay, mpu_sensor.az,
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mpu_sensor.gyx, mpu_sensor.gyy, mpu_sensor.gyz);
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#ifdef USE_WEBSERVER
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} else {
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float ax = mpu_sensor.ax / 1000.0f;
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float ay = mpu_sensor.ay / 1000.0f;
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float az = mpu_sensor.az / 1000.0f;
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WSContentSend_PD(HTTP_MPU6686, mpu_sensor.mpu_model, &ax, mpu_sensor.mpu_model, &ay, mpu_sensor.mpu_model, &az,
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mpu_sensor.mpu_model, mpu_sensor.gyx, mpu_sensor.mpu_model, mpu_sensor.gyy, mpu_sensor.mpu_model, mpu_sensor.gyz);
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#endif // USE_WEBSERVER
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}
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}
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void MPU_Detect(void) {
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#ifdef ESP32
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if (!I2cSetDevice(MPU_ACCEL_ADDRESS, 0)) {
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if (!I2cSetDevice(MPU_ACCEL_ADDRESS, 1)) { return; } // check on bus 1
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mpu_sensor.bus = 1;
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mpu_sensor.Mpu.setBus(mpu_sensor.bus); // switch to bus 1
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}
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#else
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if (!I2cSetDevice(MPU_ACCEL_ADDRESS)) { return; }
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#endif
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if (mpu_sensor.Mpu.Init() == 0) {
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char model_name[16];
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mpu_sensor.mpu_model = mpu_sensor.Mpu.getModel();
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snprintf_P(model_name, sizeof(model_name), PSTR("MPU%04d"), mpu_sensor.mpu_model);
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I2cSetActiveFound(MPU_ACCEL_ADDRESS, model_name, mpu_sensor.bus);
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mpu_sensor.ready = true;
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}
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}
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void MPU_Every_Second(void) {
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mpu_sensor.Mpu.getAccelDataInt(&mpu_sensor.ax, &mpu_sensor.ay, &mpu_sensor.az);
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mpu_sensor.Mpu.getGyroDataInt(&mpu_sensor.gyx, &mpu_sensor.gyy, &mpu_sensor.gyz);
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// AddLog(LOG_LEVEL_DEBUG, PSTR(">> Acc x=%i y=%i z=%i gx=%i gy=%i gz=%i"), mpu_sensor.ax, mpu_sensor.ay, mpu_sensor.az,
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// mpu_sensor.gyx, mpu_sensor.gyy, mpu_sensor.gyz);
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}
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/*********************************************************************************************\
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* Interface
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\*********************************************************************************************/
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bool Xsns85(uint32_t function) {
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if (!I2cEnabled(XI2C_58)) { return false; }
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bool result = false;
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if (FUNC_INIT == function) {
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MPU_Detect();
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}
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else if (mpu_sensor.ready) {
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switch (function) {
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case FUNC_EVERY_SECOND:
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MPU_Every_Second();
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break;
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case FUNC_JSON_APPEND:
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MPU_Show(1);
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break;
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#ifdef USE_WEBSERVER
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case FUNC_WEB_SENSOR:
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MPU_Show(0);
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break;
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#endif // USE_WEBSERVER
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}
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}
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return result;
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}
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#endif // USE_MPU6886 USE_MPU_ACCEL
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#endif // USE_I2C
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