Add Grove - I2C Thermocouple Amplifier (MCP9600)

grove_temp_mcp9600/grove_temp_mcp9600.cpp

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+/*
+ * grove_temp_mcp9600.cpp
+ *
+ * Copyright (c) 2019 Seeed K.K.
+ * Website    : www.seeed.co.jp
+ * Author     : Takashi Matsuoka
+ *
+ * The MIT License (MIT)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "suli2.h"
+#include "grove_temp_mcp9600.h"
+
+#define I2C_ADDRESS								(0x60 << 1)
+
+#define REG_HOT_JUNCTION_TEMPERATURE			(0x00)
+#define REG_JUNCTIONS_TEMPERATURE_DELTA			(0x01)
+#define REG_COLD_JUNCTION_TEMPERATURE			(0x02)
+#define REG_RAW_DATA_ADC						(0x03)
+#define REG_STATUS								(0x04)
+#define REG_THERMOCOUPLE_SENSOR_CONFIGURATION	(0x05)
+#define REG_DEVICE_CONFIGURATION				(0x06)
+#define REG_DEVICE_ID							(0x20)
+
+GroveTempMCP9600::GroveTempMCP9600(int pinsda, int pinscl)
+{
+	error = false;
+
+    this->i2c = (I2C_T *)malloc(sizeof(I2C_T));
+    suli_i2c_init(i2c, pinsda, pinscl);
+	suli_i2c_clock(i2c, 50000);
+
+	uint8_t readData[2];
+	if (suli_i2c_read_reg(i2c, I2C_ADDRESS, REG_DEVICE_ID, readData, sizeof(readData)) != sizeof(readData))
+	{
+		error = true;
+		return;
+	}
+	if (readData[0] != 0x40)
+	{
+		error = true;
+	}
+}
+
+bool GroveTempMCP9600::write_thermocouple_type(int type)
+{
+	if (error) return false;
+
+	uint8_t data[1];
+	if (suli_i2c_read_reg(i2c, I2C_ADDRESS, REG_THERMOCOUPLE_SENSOR_CONFIGURATION, data, sizeof(data)) != sizeof(data)) return false;
+	data[0] &= ~0x70;
+	data[0] |= (type & 0x07) << 4;
+	if (suli_i2c_write_reg(i2c, I2C_ADDRESS, REG_THERMOCOUPLE_SENSOR_CONFIGURATION, data, sizeof(data)) != sizeof(data)) return false;
+
+	return true;
+}
+
+bool GroveTempMCP9600::read_temp(float *temperature)
+{
+	if (error) return false;
+
+	uint8_t readData[2];
+	if (suli_i2c_read_reg(i2c, I2C_ADDRESS, REG_HOT_JUNCTION_TEMPERATURE, readData, sizeof(readData)) != sizeof(readData)) return false;
+	uint16_t tc_u16 = readData[0] << 8 | readData[1];
+	int16_t tc_i16 = *(int16_t*)&tc_u16;
+
+	*temperature = (float)tc_i16 / 16;
+
+	return true;
+}

grove_temp_mcp9600/grove_temp_mcp9600.h

@@ -0,0 +1,73 @@
+/*
+ * grove_temp_mcp9600.h
+ *
+ * Copyright (c) 2019 Seeed K.K.
+ * Website    : www.seeed.co.jp
+ * Author     : Takashi Matsuoka
+ *
+ * The MIT License (MIT)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+#ifndef __GROVE_TEMP_MCP9600_H__
+#define __GROVE_TEMP_MCP9600_H__
+
+#include "suli2.h"
+
+//GROVE_NAME        "Grove - I2C Thermocouple Amplifier (MCP9600)"
+//SKU               101020594
+//IF_TYPE           I2C
+//IMAGE_URL         https://www.seeedstudio.com/media/catalog/product/cache/9d0ce51a71ce6a79dfa2a98d65a0f0bd/h/t/httpsstatics3.seeedstudio.comseeedfile2018-10bazaar970557_1.jpg
+//DESCRIPTION       "The Grove - I2C Thermocouple Amplifier (MCP9600) is a thermocouple-to-digital converter with integrated cold-junction and I2C communication protocol."
+//WIKI_URL          http://wiki.seeedstudio.com/Grove-I2C_Thermocouple_Amplifier-MCP9600/
+//ADDED_AT          "2019-08-27"
+//AUTHOR            "Seeed K.K."
+
+class GroveTempMCP9600
+{
+public:
+    GroveTempMCP9600(int pinsda, int pinscl);
+
+    /**
+     * Set thermocouple type
+     *
+     * @param type - 0:K, 1:J, 2:T, 3:N, 4:S, 5:E, 6:B, 7:R
+     *
+     * @return bool
+     */
+    bool write_thermocouple_type(int type);
+
+    /**
+     * Read the temperature value of the envirenment
+     *
+     * @param temperature - unit: Celsius degree
+     *
+     * @return bool
+     */
+    bool read_temp(float *temperature);
+
+private:
+    I2C_T *i2c;
+	bool error;
+
+};
+
+#endif