diff --git a/Makefile b/Makefile
index acf4a63..85a953d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,8 @@
 cpp_src += $(wildcard *.cpp) 
 cpp_src += $(wildcard ./utils/*.cpp)
 cpp_src += $(wildcard ./interfaces/*.cpp)
+cpp_src += $(wildcard ./drivers/*.cpp)
+
 #cpp_src += $(wildcard ./communication/i2c/*.cpp)
 
 #c_src += $(wildcard ./algorithms/*.c)
diff --git a/bsl/csl/PC/peripherals/i2cDummy.hpp b/bsl/csl/PC/peripherals/i2cDummy.hpp
index e74493a..b3fcd0d 100644
--- a/bsl/csl/PC/peripherals/i2cDummy.hpp
+++ b/bsl/csl/PC/peripherals/i2cDummy.hpp
@@ -31,7 +31,10 @@ struct I2CDummy : I2C<I2CDummy>
 
     void writeBufferImpl(const uint8_t& address, const uint8_t* buffer, uint8_t len)
     {
-        std::cout << "I2C writeBuffer" << std::endl;
+        std::cout << "I2C writeBuffer to address: " << +address << std::endl;
+        for(uint8_t i = 0; i < len; i++) {
+            std::cout << +buffer[i] << std::endl;
+        }
     }
 
     void readBufferImpl(const uint8_t& address, const uint8_t* buffer, uint8_t len)
diff --git a/drivers/MCP4725/mcp4725.hpp b/drivers/MCP4725/mcp4725.hpp
new file mode 100644
index 0000000..0808315
--- /dev/null
+++ b/drivers/MCP4725/mcp4725.hpp
@@ -0,0 +1,121 @@
+#ifndef _MCP4725_HPP_
+#define _MCP4725_HPP_
+#include <stdint.h>
+#include <unistd.h>
+#include <functional>
+#include "../../interfaces/i2c.hpp"
+
+template <typename T>
+class MCP4725
+{
+	public:
+		//typedef std::function<void(uint8_t,uint8_t*,uint8_t)> i2c_write_n_t;
+		//typedef std::function<void(const uint8_t&,const uint8_t*,const uint8_t&)> i2c_write_n_t;
+		//typedef void(*i2c_write_n_t)(const uint8_t&, const uint8_t*, const uint8_t&);
+	
+		//typedef std::function<void(int)>i2c_write_n_t;
+		// address list
+		enum i2c_addr
+		{
+			addr_0x60 = 0b01100000,
+			addr_0x61 = addr_0x60 + 1,
+			addr_0x62 = addr_0x60 + 2,
+			addr_0x63 = addr_0x60 + 3,
+			addr_0x64 = addr_0x60 + 4,
+			addr_0x65 = addr_0x60 + 5,
+			addr_0x66 = addr_0x60 + 6,
+			addr_0x67 = addr_0x60 + 7
+		};
+
+		// power down impedance  modes
+		enum pwrd_md
+		{
+			normal = 0x04,
+			ohm_1k = 0x01,
+			ohm_100k = 0x02,
+			ohm_500k = 0x03
+		};
+
+		//using std::functional<uint8_t(uint8_t, uint8_t)> i2c_read_n_t;
+		//using i2c_write_n_t = std::functional<void(uint8_t, uint8_t*,uint8_t)>;
+		
+		/**
+		 * @brief Constructor of mcp4725 dac
+		 * 
+		 * @param power_down_mode pwrd_md power down mode
+		 * @param address i2c_addr i2c address of the dac
+		 * @param i2c_write i2c_write_n_t callback for i2c writ
+		 */
+
+		MCP4725(I2C<T>& i2c) :
+            power_down_mode(pwrd_md::normal),
+			address(addr_0x60),
+			i2c(i2c),
+			dac_value(0),
+			eeprom_value(0)
+        {
+            uint8_t temp[3];
+            this->dac_value = dac_value;
+            
+            temp[0] = cmd_write_dac | (power_down_mode << 1);
+            temp[1] = static_cast<uint8_t>(dac_value >> 4);
+            temp[2] = static_cast<uint8_t>(dac_value << 4);
+
+
+            i2c.writeBuffer(address, temp, 3);
+        }
+
+	//	~MCP4725();
+	
+
+
+		void operator=(uint16_t dac_value)
+        {
+            uint8_t temp[3];
+            this->dac_value = dac_value;
+            
+            temp[0] = cmd_write_dac | (power_down_mode << 1);
+            temp[1] = static_cast<uint8_t>(dac_value >> 4);
+            temp[2] = static_cast<uint8_t>(dac_value << 4);
+
+            i2c.writeBuffer(address, temp, 3);
+        }
+
+		void operator==(uint16_t dac_and_eeprom_value)
+        {
+            uint8_t temp[6];
+            dac_value = dac_and_eeprom_value;
+            eeprom_value = dac_value;
+
+            temp[0] = cmd_write_dac_and_eeprom | (power_down_mode << 1); 
+            temp[1] = static_cast<uint8_t>(dac_and_eeprom_value >> 4);
+            temp[2] = static_cast<uint8_t>(dac_and_eeprom_value << 4);
+            temp[3] = temp[0];
+            temp[4] = temp[1];
+            temp[5] = temp[2];
+            
+            i2c.writeBuffer(address, temp, 6);
+        }
+
+		//void set_power
+		
+
+	private:
+
+		enum commands_t
+		{
+			cmd_fast_mode = 0x00,
+			cmd_write_dac = 0x40,
+			cmd_write_dac_and_eeprom = 0x60
+		};
+
+		I2C<T>& i2c;
+
+		i2c_addr address;
+		pwrd_md power_down_mode;
+		uint16_t dac_value;
+		uint16_t eeprom_value;
+
+};
+
+#endif // _MCP4725_HPP_
\ No newline at end of file
diff --git a/main.cpp b/main.cpp
index c41ca16..2cc6c22 100644
--- a/main.cpp
+++ b/main.cpp
@@ -58,11 +58,20 @@ void foo()
 
 }
 
+void dac()
+{
+	MCP4725<I2CDummy> dac(dummyI2C);
+	dac = 10;
+	dac = 10;
+
+}
+
 int main(int argc, char *argv[])
 {
 	std::cout << "Main Begin" << std::endl;
 	commander.addNewCommand("dummy", "The test command for testing the test", dummy);
 	commander.addNewCommand("foo", "The test command for foo was called", foo);
+	commander.addNewCommand("dac", "The test command for dac was called", dac);
 	commander(argv[1]);
 	std::cout << "Main End" << std::endl;
 	return 1; 
diff --git a/main.hpp b/main.hpp
index 54e1c5d..9c9dfe9 100644
--- a/main.hpp
+++ b/main.hpp
@@ -12,6 +12,8 @@
 #include "./interfaces/spich.hpp"
 #include "./interfaces/i2c.hpp"
 
+#include "./drivers/MCP4725/mcp4725.hpp"
+
 #include "bsl/csl/raspberry/peripherals/pinRaspberry.hpp"
 #include "bsl/csl/PC/peripherals/pinPC.hpp"
 #include "bsl/csl/PC/peripherals/spiDummy.hpp"
diff --git a/runtest b/runtest
index 6c6cc52..79c1045 100755
Binary files a/runtest and b/runtest differ