{"title":"Gravity: I2C 4-20mA DAC Module (Arduino Compatible)","handle":"gravity-i2c-4-20ma-dac-module-arduino-compatible","url":"/products/gravity-i2c-4-20ma-dac-module-arduino-compatible","description":"The Gravity I2C 4-20mA DAC Module outputs 0–25 mA of current controlled via I2C, with high-accuracy 4–20 mA output available after calibration (0.2% linearity error). Built around the GP8302 chip, it provides 12-bit resolution and is compatible with Arduino, enabling precise current-loop control of industrial devices such as motors, inverters, valves, and pumps.\n\nThe module uses a Gravity I2C interface for easy connection and requires an 18–24V power supply (24V recommended). It supports a maximum load resistance of 750Ω at 24V, with a start-up time under 2 ms and operating temperatures from −40°C to 125°C.\n\nKey Features\n\n\n0–25 mA Current Output – 4–20 mA with 0.2% accuracy after calibration\n\n12-Bit Resolution – GP8302 DAC chip (0x000–0xFFF)\n\nGravity I2C Interface – Simple connection to Arduino and compatible boards\n\nI2C Address – 0x58\n\nHigh Level Input – 2.7–5V I2C signal compatible\n\nLow Power – Less than 5 mA consumption, under 2 ms start-up\n\nWide Temperature Range – −40°C to 125°C\n\n\nSpecifications\n\n\nDAC Chip – GP8302\n\nPower Supply – 18–24V DC (24V recommended)\n\nOutput Current – 0–25 mA\n\nAccuracy – 0.5% before calibration, 0.2% after calibration\n\nMax Load Resistance – 450Ω @ 18V, 750Ω @ 24V\n\nPower Consumption – <5 mA\n\nStart-Up Time – <2 ms\n\nOperating Temperature – −40°C to 125°C\n\n\nIdeal For\n\nIndustrial 4–20 mA current loop control\nMotor, inverter, valve, and pump automation\nFunction signal generation\nEquipment debugging and test device prototyping\n\n\nPackage Contents\n\n1× Gravity I2C 4-20mA DAC Module\n1× Gravity I2C/UART Sensor Connector\n\n\nResources\n\nProduct Wiki\nSchematic (PDF)\nDimensions (PDF)\nDatasheet (PDF)\n","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":1811,"title":"Default Title","sku":"DF-DFR0972","price":18.25,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":477,"option1":"Default Title"}]}