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Update max31855.cpp (#1273)

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line 47: mem 

It's valid to have mem value of zero (0) when the temperature of the IC and the k-probe equals exactly zero degrees.
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EmbeddedDevver 2020-09-16 12:41:29 +02:00 committed by GitHub
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commit b5df50893b
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esphome/components/max31855/max31855.cpp
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@ -44,7 +44,7 @@ void MAX31855Sensor::read_data_() {
const uint32_t mem = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3] << 0;
// Verify we got data
if (mem != 0 && mem != 0xFFFFFFFF) {
if (mem != 0xFFFFFFFF) {
this->status_clear_error();
} else {
ESP_LOGE(TAG, "No data received from MAX31855 (0x%08X). Check wiring!", mem);