![]() ![]() Module options are available with compatibility to SPI (LTM2810-S) and I 2C (LTM2810-I), master mode only, specifications. Separate logic supply pins allow easy interfacing with different logic levels from 1.62V to 5.5V, independent of the main supply. Individual 3V to 5.5V supplies power each side of the digital isolator. Get Gravity: Digital Signal Isolator from DFRobot Store or DFRobot Distributor.The LTM2810 is a complete galvanic digital µModule (micromodule) isolator. The code of the sensor or module in the main control board is the original code, so you do not need to be modified.įAQ For any questions, advice or cool ideas to share, please visit the DFRobot Forum. Then connect the Controller Side of the isolation module to the I2C bus of the Arduino board.Īfter the steps above, the electrical isolation of the DAC module has been completed. Gravity-4P I2C/ UART Sensor Cable x1 (or several DuPont cables) x1Īs shown in the picture below, connect the I2C sensor or module to the Module Side of the isolation module (use a dual-head PH2.0 cable, this cable is included with the product).This tutorial will use a I2C DAC module as an example to demonstrate how to connect this digital signal isolator in the circuit,to electrically isolate the sensor or module. The left connector named Module should be connected to the sensor or module.The right connector named Controller should be connected to the I2C bus of the main control board. Dimension: 42 * 32mm / 1.65 * 1.26 inchĪs shown in the figure below, this digital signal isolator has two connectors, one is on the left and another is on the right.Interface Signal Level: High 3.3V, Low 0V. ![]() Do not short-circuit them.ģ.It is normal for the isolator generates heat while working. Connect it into your circuit to get electrical isolation, and the code of sensor module in control board does not need to be modified, which is simple and convenient.ġ.Please pay attention to the operating current of your sensor or module, the maximum output current from Module side is 150mA.Ģ.All pins on the Module side (isolation side) are isolated from all pins on the Controller side (non-isolation side). This product is designed specifically for DFRobot I2C connector sensor or modules, plug and play, no welding. What's more, the on-board 5V isolation power chip can directly supply the sensor module, without additional power. In order to ensure stable operation of the sensor modules, it is necessary to isolate the signal and the power.Īfter the analog signal isolator, we launched this digital signal isolator which specifically isolates the I2C digital signal. ![]() Some sensors, such as pH sensors and electrical conductivity sensors, which share the same power source and measure in the same container, will interfere with each other and do not work properly. In this case, electrical isolation is needed to ensure the stable operation of the sensors. For example, a running pump in a fish tank will release signals into the water, which interferes the sensors in the fish tank. ![]() In many cases, interference sources are existing. This digital signal isolator can be used for multi-parameter water quality detection systems to prevent water quality sensors from interfering with each other. Gravity: Digital Signal Isolator is capable of isolating I2C digital signal and providing isolated power to the sensor module, effectively preventing mutual interference between the sensor modules. Gravity_Digital_Signal_Isolator_SKU_DFR0565-DFRobot ![]()
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