> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt # Gravity: GP8413 2-Channel 15-bit I2C to 0-5V/10V DAC Module **Type:** Product page · **SKU:** DFR1073 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia) **Page:** https://core-electronics.com.au/gravity-gp8413-2-channel-15-bit-i2c-to-0-5v10v-dac-module.html ([markdown](https://core-electronics.com.au/gravity-gp8413-2-channel-15-bit-i2c-to-0-5v10v-dac-module.html.md)) High-resolution, high-precision, dual-channel DAC voltage module. Expandable to 16 output channels through I2C cascading... ## Pricing - **Price:** $23.50 (inc GST) — $21.36 AUD, exc GST - **Quantity discounts:** 6+ $20.29 (exc GST) · 12+ $19.44 (exc GST) ## Availability & dispatch - In stock, ships same business day if ordered before 2PM (Australia/Sydney). - We can dispatch 2 today, and up to 350 more in 8–12 days. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=DFR1073:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart. - **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/DFR1073:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.) - **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description This is a 2-channel DAC module with I2C communication, a resolution of 15-bit, and an accuracy of 0.2%, capable of generating analog voltage outputs of 0-10V or 0-5V. The 0-10V or 0-5V voltage range is a standard driving method. It can be widely used in automation applications such as light adjustment, frequency converters, valve regulation, and pump control. This product can drive a variety of 0-10V or 0-5V controlled devices available in the market through Arduino programming. The high precision and resolution of this module make it suitable for control scenarios that require higher signal accuracy, such as fine speed control or angle control. DAC series modules are a range of products that can be controlled through I2C or PWM signals to generate voltage or current output signals. This series of DAC products not only offers a variety of output signal ranges, but also provides three selectable resolutions: 8-bit, 12-bit, and 15-bit. It allows for the choice of either single-channel or dual-channel configurations, and multiple modules can be cascaded to form a multi-channel output. ![Functional Diagram of Gravity: GP8413 2-Channel 15-bit I2C to 0-5V/10V DAC Module](https://core-electronics.com.au/attachments/localcontent/DFR1073-GP8413-FUN_7648051d98b.png) Functional Diagram of Gravity: GP8413 2-Channel 15-bit I2C to 0-5V/10V DAC Module ![Wiring Diagram of Gravity: GP8413 2-Channel 15-bit I2C to 0-5V/10V DAC Module](https://core-electronics.com.au/attachments/localcontent/DFR1073-GP8413-CON_166184869cd.png) Wiring Diagram of Gravity: GP8413 2-Channel 15-bit I2C to 0-5V/10V DAC Module and Arduino UNO We provide various models of DAC modules. If you need a different model, please check the selection guide: **[Selection Guide of DAC Modules](https://www.dfrobot.com/blog-13458.html)** ### Features 11. Support 3.3V-5V power supply. 12. Output voltage error is less than 0.2%. 13. Output voltage linearity error is 0.01%. 14. Two channels of voltage output, either 0-5V or 0-10V, enabling connection and control ofstandard analog voltage devices. 15. Gravity interface, I2C communication, Arduino control, suitable for program automationcontrol. 16. Features 8 adjustable I2C addresses, allowing simultaneous control of up to 16 devices. 17. The high precision and resolution of this module make it suitable for control scenarios thatrequire higher signal accuracy. ### Applications 19. Automatic light adjustment 20. Variable frequency drive (VFD) 21. Automatic valve regulation 22. Automatic water pump control ### Specification 24. Operating voltage: 3.3V to 5V 25. Communication Method: I2C 26. Chip Type: GP8413 27. Resolution: 15-bit 28. Output Voltage: 0-5V or 0-10V 29. Number of channels: 2 channels 30. Value Range: 0 - 32767 corresponding to 0-5V or 0-10V 31. Output voltage: 0.2% 32. Output voltage linearity error: 0.01% ### Documents 34. [Product wiki](https://wiki.dfrobot.com/SKU_DFR1073_2_Channel_15bit_I2C_to_0-10V_DAC) ### Parts List 36. GP8413: 2-Channel 15-bit I2C to 0-5V/10V DAC Module ×1 37. Gravity-4P I2C/UART Sensor Cable × 1 ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/D/F/DFR1073-1.jpg)