feat(minion): add reading temperature sensor

1 files changed, 42 insertions, 0 deletions

diff --git a/minion/src/temperature.hpp b/minion/src/temperature.hpp
new file mode 100644
index 0000000..dcc213c
--- /dev/null
+++ b/minion/src/temperature.hpp
@@ -0,0 +1,42 @@
+#pragma once
+
+#include <stddef.h>
+#include <stdint.h>
+
+namespace TemperatureSensorTiming
+{
+
+constexpr auto START_SIGNAL_TIME_MILLIS = 18U;
+constexpr auto RESPONSE_SIGNAL_WAIT_TIME_MICROS = 40U;
+constexpr auto RESPONSE_SIGNAL_TIME_MICROS = 80U;
+constexpr auto START_TO_TRANSMIT_SIGNAL_TIME_MICROS = 50U;
+constexpr auto DATA_TRANSMIT_TIMEOUT_MICROS = 80U;
+
+} // namespace TemperatureSensorTiming
+
+constexpr auto TEMPERATURE_SENSOR_RESPONSE_DATA_BYTE_CNT = 5U;
+constexpr auto BITS_IN_BYTE = 8U;
+
+enum class TemperatureSensorStatus
+{
+	OK,
+	TIMEOUT,
+	CHECKSUM_ERROR
+};
+
+class TemperatureSensor
+{
+public:
+	explicit TemperatureSensor(uint8_t pin) noexcept;
+
+	auto read_temperature() noexcept -> TemperatureSensorStatus;
+
+	auto temperature() const noexcept -> uint8_t;
+
+private:
+	const uint8_t _pin;
+
+	uint8_t _temperature{};
+
+	auto _wait_read(uint8_t level, size_t timeout_micros) noexcept -> bool;
+};