Gravity: Digital I2C Signal Isolator
Available with a lead time
Expect dispatch between May 10 and May 16
Quantity Discounts:
- 10-25 $25.26 (exc GST)
- 25+ $24.75 (exc GST)
Introduction
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. This digital signal isolator can be used for multi-parameter water quality detection systems to prevent water quality sensors from interfering with each other. In many cases, interference sources are existing. For example, a running pump in a fish tank will release signals into the water, which interferes the sensors in the fish tank. In this case, electrical isolation is needed to ensure the stable operation of the sensors. 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 order to ensure stable operation of the sensor modules, it is necessary to isolate the signal and the power. After the analog signal isolator, we launched this digital signal isolator which specifically isolates the I2C digital signal. What's more, the on-board 5V isolation power chip can directly supply the sensor module, without additional power. This product is designed specifically for DFRobot I2C connector sensor or modules, plug and play, no welding. 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.
Note: 1. Please pay attention to the operating current of your sensor or module, the maximum output current from Module side is 150mA. 2. All pins on the Module side (isolation side) are isolated from all pins on the Controller side (non-isolation side). Do not short-circuit them. 3. It is normal for the isolator generates heat while working. FEATURES
- Onboard 5V 0.75W isolation power chip, no additional power needed, simple and convenient
- Almost compatible with all DFRobot I2C connector sensors or modules, plug and play, no welding
Specification
- Operating Voltage: 5.0V
- Connector Type: PH2.0-4P
- Interface Protocol: I2C(IIC)
- Interface Signal Level: High 3.3V, Low 0V
- Dimension: 42 * 32mm / 1.65 * 1.26 inch
- Supply Voltage: 5.0 ± 0.15V
- No-load Current: 15mA(TYP)
- Output Voltage: 5.0 ± 0.15V
- Output Current: 150mA(MAX)
Documents
Parts List
- Gravity: Digital I2C Signal Isolator x1
- Double PH2.0-4P Cable x1
- Gravity-4P I2C/ UART Sensor Cable x1
- XH2.54-4Pin Header x2
Exact shipping can be calculated on the view cart page (no login required).
Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).
We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):
- $3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
- $6+ for Standard Post (typically 6+ business days, tracked)
- $10+ for Express Post (typically 2+ business days, tracked)
- Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.
Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.
Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.
International Orders - the following rates are for New Zealand and will vary for other countries:
- $11+ for Pack and Track (3+ days, tracked)
- $16+ for Express International (2-5 days, tracked)
If you order lots of gear, the postage amount will increase based on the weight of your order.
Our physical address (here's a PDF which includes other key business details):
Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia
Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.
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