jeans/Tasmota
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fix I2C-issues, refactoring and code shrink

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This commit is contained in:
Staars 2019-11-23 18:55:48 +01:00
parent 0830fe113d
commit 35990dbad4
2 changed files with 30 additions and 47 deletions
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6
tasmota/xsns_26_lm75ad.ino
View File

@ -53,7 +53,11 @@ void LM75ADDetect(void)
{ {
for (uint32_t i = 0; i < sizeof(lm75ad_addresses); i++) { for (uint32_t i = 0; i < sizeof(lm75ad_addresses); i++) {
lm75ad_address = lm75ad_addresses[i]; lm75ad_address = lm75ad_addresses[i];
if (I2cActive(lm75ad_address)) { continue; } if (I2cActive(lm75ad_address)) {
continue; }
if (!I2cSetDevice(lm75ad_address)) {
break; // do not make the next step without a confirmed device on the bus
}
uint16_t buffer; uint16_t buffer;
if (I2cValidRead16(&buffer, lm75ad_address, LM75_THYST_REGISTER)) { if (I2cValidRead16(&buffer, lm75ad_address, LM75_THYST_REGISTER)) {
if (buffer == 0x4B00) { if (buffer == 0x4B00) {

71
tasmota/xsns_46_MLX90614.ino
View File

@ -31,58 +31,37 @@
#define MLX90614_TOBJ1 0x07 #define MLX90614_TOBJ1 0x07
#define MLX90614_TOBJ2 0x08 #define MLX90614_TOBJ2 0x08
bool mlx_ready = false; struct {
float obj_temp; union {
float amb_temp; uint16_t value;
uint32_t i2c_buf;
};
float obj_temp;
float amb_temp;
bool ready = false;
} mlx90614;
void MLX90614_Init(void) void MLX90614_Init(void)
{ {
if (!I2cSetDevice(I2_ADR_IRT)) { return; } if (!I2cSetDevice(I2_ADR_IRT)) { return; }
I2cSetActiveFound(I2_ADR_IRT, "MLX90614"); I2cSetActiveFound(I2_ADR_IRT, "MLX90614");
mlx_ready = true; mlx90614.ready = true;
// not needed on tasmota
//Wire.begin();
//delay(500);
}
// return ir temp
// 0 = chip, 1 = object temperature
// * 0.02 - 273.15
uint16_t read_irtmp(uint8_t flag)
{
Wire.beginTransmission(I2_ADR_IRT);
if (!flag) {
Wire.write(MLX90614_TA);
} else {
Wire.write(MLX90614_TOBJ1);
}
Wire.endTransmission(false);
Wire.requestFrom(I2_ADR_IRT, 3);
uint8_t low = Wire.read();
uint8_t hig = Wire.read();
Wire.read();
uint16_t val = ((uint16_t)hig << 8) | low;
return val;
} }
void MLX90614_Every_Second(void) void MLX90614_Every_Second(void)
{ {
uint16_t uval = read_irtmp(1); mlx90614.i2c_buf = I2cRead24(I2_ADR_IRT, MLX90614_TOBJ1);
if (uval & 0x8000) { if (mlx90614.value & 0x8000) {
obj_temp = -999; mlx90614.obj_temp = -999;
} else { } else {
obj_temp = ((float)uval * 0.02) - 273.15; mlx90614.obj_temp = ((float)mlx90614.value * 0.02) - 273.15;
} }
uval = read_irtmp(0); mlx90614.i2c_buf = I2cRead24(I2_ADR_IRT,MLX90614_TA);
if (uval & 0x8000) { if (mlx90614.value & 0x8000) {
amb_temp = -999; mlx90614.amb_temp = -999;
} else { } else {
amb_temp = ((float)uval * 0.02) - 273.15; mlx90614.amb_temp = ((float)mlx90614.value * 0.02) - 273.15;
} }
} }
#ifdef USE_WEBSERVER #ifdef USE_WEBSERVER
@ -94,9 +73,9 @@ void MLX90614_Every_Second(void)
void MLX90614_Show(uint8_t json) void MLX90614_Show(uint8_t json)
{ {
char obj_tstr[16]; char obj_tstr[16];
dtostrfd(obj_temp, Settings.flag2.temperature_resolution, obj_tstr); dtostrfd(mlx90614.obj_temp, Settings.flag2.temperature_resolution, obj_tstr);
char amb_tstr[16]; char amb_tstr[16];
dtostrfd(amb_temp, Settings.flag2.temperature_resolution, amb_tstr); dtostrfd(mlx90614.amb_temp, Settings.flag2.temperature_resolution, amb_tstr);
if (json) { if (json) {
ResponseAppend_P(PSTR(",\"MLX90614\":{\"OBJTMP\":%s,\"AMBTMP\":%s}"), obj_tstr, amb_tstr); ResponseAppend_P(PSTR(",\"MLX90614\":{\"OBJTMP\":%s,\"AMBTMP\":%s}"), obj_tstr, amb_tstr);
@ -120,7 +99,7 @@ bool Xsns46(byte function)
if (FUNC_INIT == function) { if (FUNC_INIT == function) {
MLX90614_Init(); MLX90614_Init();
} }
else if (mlx_ready) { else if (mlx90614.ready) {
switch (function) { switch (function) {
case FUNC_EVERY_SECOND: case FUNC_EVERY_SECOND:
MLX90614_Every_Second(); MLX90614_Every_Second();