M5Stack DAC 2 I2C Unit (GP8413)
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M5Stack DAC 2 I2C Unit (GP8413)
The M5Stack DAC 2 I2C Unit (GP8413) is a compact and high-performance digital-to-analog signal conversion module designed for professional and industrial applications. Also referred to as the M5Stack DAC 2 or DAC2 Unit, this device offers outstanding precision, scalability, and robust safety features.
At its core, the DAC2 Unit utilizes the GP8413 chipset, capable of 15-bit resolution digital-to-analog conversion, outputting two independent analog voltages in the 0–5V or 0–10V range. With up to 0.01% linearity and a voltage error margin of only 0.2%, it ensures highly reliable and stable analog signal generation.
Key Features of M5Stack DAC 2 I2C Unit (GP8413)
-
15-bit High-Precision DAC Output
Converts digital signals into two independent 0–5V or 0–10V analog outputs with exceptional accuracy. -
I2C Communication (Default Address: 0x59)
Easy and reliable data transmission with support for multiple parallel connections thanks to a 3-bit hardware address, enabling up to 8 DAC2 Units on a single I2C bus. -
High Precision, Minimal Error
Achieves 0.01% linearity and maintains a low output voltage error (0.2%), delivering professional-grade analog signal quality. -
Built-in Short-Circuit Protection
Protects the module by automatically disabling output in case of a short between the output pins and ground. -
Compact, Reliable, and Expandable Design
Perfect for use in scalable IoT and industrial environments.
Communication Protocol
The M5Stack DAC 2 communicates using the I2C protocol, with a default address of 0x59. Thanks to address configurability, multiple DAC2 Units can operate simultaneously in complex systems, offering flexibility for advanced designs.
Typical Applications for the DAC2 Unit
-
General Digital-to-Analog Signal Conversion
Seamlessly translate digital commands into precise analog voltages. -
Motor Speed Control
Achieve fine-grained motor control with adjustable analog voltage output. -
LED Dimming Control
Enable smooth and programmable brightness adjustments for LED systems. -
Industrial Inverter and Power Supply Systems
Generate reliable analog references for inverters and voltage regulators. -
Industrial Analog Signal Isolation
Enhance signal integrity and system stability with precision DAC outputs. -
Smart Factory and IoT Applications
Integrate precise analog controls into automated industrial systems.
Includes
- 1x DAC2 Unit
- 1x VH3.96-4P
- 1x Sticker
Applications
- Universal signal conversion
- Motor speed regulation, LED dimming
- Inverter, power supply
- Industrial analog signal isolation
Specification
| DAC Chip | GP8413 |
| Rresolution Ratio | 15Bit |
| I2C Serial Communication | 0x59 (default) |
| Maximum Output Voltage | 10V |
| Output Voltage Error | <0.2% |
| Output Voltage Linearity error | 0.01% |
| Operating Temperature | 0-40°C |
| Product Size | 32* 24* 10.2mm |
| Package Size | 136* 92* 13.7mm |
| Product Weight | 5g |
| Package Weight | 13.3g |
FAQs – M5Stack DAC 2 I2C Unit (GP8413)
Q1: What communication protocol does the M5Stack DAC 2 Unit use?
A:
The M5Stack DAC 2 Unit uses the I2C communication protocol with a default address of 0x59. This allows for easy connection and reliable data transmission between the DAC2 Unit and microcontrollers like M5Core.
Q2: How many DAC2 Units can I connect in one system?
A:
Thanks to its 3-bit hardware address configuration, you can connect up to 8 DAC2 Units in parallel on the same I2C bus, enabling flexible and scalable system designs.
Q3: What is the resolution and accuracy of the M5Stack DAC 2 I2C Unit?
A:
The DAC2 Unit provides a 15-bit digital-to-analog conversion, achieving up to 0.01% linearity and maintaining a very low output voltage error of only 0.2%. This ensures high precision for industrial and professional applications.
Q4: Does the DAC2 Unit offer any protection features?
A:
Yes, the DAC2 Unit is equipped with short-circuit protection. If the output pins are accidentally shorted to ground, the module automatically enters protection mode to prevent damage.
Q5: What voltage ranges does the DAC2 Unit support?
A:
The M5Stack DAC 2 can output two independent analog voltages, either in the 0–5V or 0–10V range, making it versatile for different application requirements like motor speed control, LED dimming, and signal isolation.
Q6: What are typical use cases for the M5Stack DAC 2 Unit?
A:
Typical applications include:
-
Motor speed control
-
LED brightness adjustment
-
Signal conversion in industrial systems
-
Power inverter reference signal generation
-
Analog signal isolation in smart factories and IoT solutions
1. General Shipping Information
- We provide premium shipping methods with a tracking number for each order.
- Shipping addresses must be entered in English without special symbols to help the courier company recognize your address in the system. We will ship strictly according to the shipping address you provided. Please notify us of any address change before your order is marked "Shipped" to avoid parcel loss.
- Please contact our customer service staff immediately if you need to cancel or change an order. Once your order has reached "Shipped" status, it can no longer be canceled or changed in any way. To avoid complications, please recheck your shopping cart before checkout.
- We can ship all in-stock orders within 1 business day after your order has been confirmed.
- All items are inspected before dispatch and are carefully hand-packed.
- With standard courier practice, you need to check the contents of the parcel before signing for your goods. Otherwise, we will not be held responsible for any damage that may have occurred in transit.
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If you require expedited shipping (Express), please contact our customer support team at info@openelab.io for a customized quote tailored to your location.
2. Shipping Rates & Options
Our shipping rates are calculated based on the order value and destination. Please refer to the tables below for details.
2.1 Germany (Domestic)
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| Deutsche Post | €0 - €50.00 | €4.95 | 2-4 Business Days |
| Deutsche Post | Over €50.00 | Free | 2-4 Business Days |
|
DHL Paket (Faster Delivery) |
€0 - €50.00 | €6.95 | 1-3 Business Days |
|
DHL Paket (Faster Delivery) |
€50.00 - €100.00 | €2.00 | 1-3 Business Days |
|
DHL Paket (Faster Delivery) |
Over €100.00 | Free | 1-3 Business Days |
2.2 European Union (EU)*
*Including:
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| Deutsche Post | €0 - €100.00 | €7.95 | 5-9 Business Days |
| Deutsche Post | Over €100.00 | Free | 5-9 Business Days |
|
DHL Paket (Faster Delivery) |
€0 - €100.00 | €15.95 | 3-7 Business Days |
|
DHL Paket (Faster Delivery) |
€100.00 - €250.00 | €7.95 | 3-7 Business Days |
|
DHL Paket (Faster Delivery) |
Over €250.00 | Free | 3-7 Business Days |
2.3 United States
| Region | Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|---|
|
Continental U.S. (50 States) |
USPS Ground Advantage | €0 - €45.00 | €5.95 | 3-7 Business Days |
| USPS Ground Advantage | Over €45.00 | Free | 3-7 Business Days | |
| USPS Priority Mail | €0 - €45.00 | €16.95 | 1-4 Business Days | |
| USPS Priority Mail | Over €45.00 | €14.95 | 1-4 Business Days | |
|
Non-Continental U.S. (AK, HI, PR, etc.) |
USPS Ground Advantage | €0 - €60.00 | €6.95 | 5-9 Business Days |
| USPS Ground Advantage | Over €60.00 | Free | 5-9 Business Days |
* The regions in the Non-Continental U.S. include: Alaska, American Samoa, Guam, Hawaii, the Marshall Islands, the Northern Mariana Islands, Palau, Puerto Rico, the U.S. Virgin Islands, and all U.S. Armed Forces addresses. The shipping and delivery to these areas are subject to the Non-Continental U.S. shipping rules.
2.4 International (Outside EU)
For specific international destinations, including Switzerland, United Kingdom, and Norway.
| Order Amount | Shipping Cost |
|---|---|
| €0 - €300.00 | €19.95 |
| Over €300.00 | Free |
Important Notice:
- Inventory Status: Please check the inventory status on the product page. Our system displays real-time stock for our Munich and Long Beach warehouses. If an item is out of stock in these locations, it will be marked as "Pre-order". You can still place an order for these items.
- Pre-order Fulfillment: For "Pre-order" items, we arrange the most efficient logistics solution to ensure you receive your goods as quickly as possible. Your package may be shipped directly from our Shenzhen warehouse. Alternatively, as part of our standard restocking process, we may transport the goods to our Munich or Long Beach warehouse first (typically taking 5-10 business days) before dispatching them to you.
- Split Shipments: If your order contains both in-stock and Pre-order items, we will prioritize shipping the in-stock items from the local warehouse immediately. The remaining Pre-order items will be sent to you in a separate shipment once they are ready.
3. International Warehouse
Our products are stored in our Munich, Long Beach, and Shenzhen warehouses to provide more flexible logistics solutions tailored to different regions and customer needs. On each product's description page, we indicate the specific warehouse location to help you better plan your purchase and delivery schedule.
3.1 German Warehouse
For products stored in our warehouse in Munich, we use either Deutsche Post or DHL for shipping, depending on the size of the package. Logistics within Germany are very efficient, with an estimated delivery time of 2-4 business days, ensuring you receive your order quickly and conveniently. For Western EU countries, the estimated delivery time is 4-6 business days. For Eastern EU countries, the estimated delivery time is 6-8 business days.
3.2 US Warehouse
For products stored in our warehouse in Long Beach, we use either USPS or UPS for shipping, depending on the size of the package. Logistics within U.S. are very efficient, with an estimated delivery time of 3-7 business days, ensuring you receive your order quickly and conveniently.
3.3 Chinese Warehouse
For Pre-order items or orders fulfilled directly from our Shenzhen warehouse, we utilize YunExpress for reliable international shipping. Given the complexities of international shipping, the estimated delivery time for these packages is around 10 business days, though this may vary slightly due to customs processes or other uncontrollable factors. Otherwise, products will be restocked to our Munich or US warehouses before final delivery, as detailed in the "Important Notice" above.
4. Customs and Taxes
4.1 How are customs handled by OpenELAB for import or export?
For EU Member States: Whether shipped from Germany or China, we cover all import duties and taxes (DDP), ensuring that you receive your package without any additional costs or hassle with customs.
For countries outside of the European Union, such as Switzerland and Norway, you may be subject to import duties, taxes, and/or customs fees charged upon delivery. These fees vary from country to country and are the sole responsibility of the recipient.
⚠️ Refusal of Delivery: If you refuse to pay these fees upon delivery and the package is returned to us, the refund amount will be calculated after deducting the original shipping costs, return shipping costs, and any applicable customs or storage fees.
4.2 How is VAT charged when the Customer places an order from OpenELAB?
In accordance with the newest VAT e-commerce rules in the EU, OpenELAB shall have the right to charge the amount of VAT at checkout. The standard rate of actual VAT applied is subject to the destination country's regulations. No additional VAT will be charged upon delivery for these orders.






