Gravity: I2C 12-Bit DAC Module
Available with a lead time
Expect dispatch between May 13 and May 20
Quantity Discounts:
- 10-25 $7.89 (exc GST)
- 25+ $7.73 (exc GST)
DFRobot Gravity 12-Bit I2C DAC is a small and easy-to-use 12-bit digital-to-analog converter with EEPROM. It can accurately convert the digital value to a corresponding analog voltage signal, which is useful in may creative projects and automatic control systems. Although an analog voltage signal can be generated by PWM with traditional controllers such as Arduino and Raspberry Pi, such signal is ROUGH and NOT ACCURATE. To obtain a steady and nice analog voltage signal, the DAC is the best candidate. In addition to be applied in automatic control systems, the DAC module can be used to serve as a function generator to generate a sine wave, triangular wave and even arbitrary waveform (DFRobot provide a library to generate low-frequency sin and triangular wave with just a few parameters).
The module employs a 12-bit DAC MCP4725. It requires no external reference voltage (DAC reference is driven from VCC directly), supports 3.3V~5V wide input voltage and has a I2C address selection switch (two address 0x60 and 0x61 are available, which support maximum two modules in cascade). The EEPROM can retain the DAC input while power-off and resume the DAC output upon power-on.
- 12-bit high accuracy DAC
- On-board EEPROM, retain DAC input while power-off
- Gravity I2C interface, plug and play. XH2.54 4P reserved for expansion
- Wide voltage input, compatible with 3.3V and 5V controllers
- Small size and easy to install
- Sensor Calibration
- Automatic Control Systems
- Function Generator
- Input Voltage (VCC): 3.3V~5.0V
- Output Voltage: 0 ~ VCC
- Resolution: 12-bit
- Working Current: <0.2 mA
- Interface: Gravity I2C (logic level: 0-3.3V)
- Dimension: 27.0mm*22.0mm
- Weight: 13.8g
- Gravity: I2C 12-Bit DAC Module x1
- XH2.54-4P Header x1
- Gravity-4P I2C/ UART Sensor Wire x1
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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