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 reliable shipping services with a tracking number for each order.
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- Please make sure your shipping address is accurate before placing your order. We ship strictly according to the address provided at checkout.
- In-stock orders are usually dispatched within 1 business day after order confirmation.
- Estimated delivery times refer to the period after dispatch and do not include order processing time, weekends, public holidays, customs inspection, or force majeure delays.
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2. Shipping Rates & Options
Shipping rates are calculated based on order value, destination, and available shipping methods. The final available options will be displayed at checkout.
2.1 Germany Domestic Shipping
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| Deutsche Post | €0.00 - €50.00 | €4.95 | 2-4 Business Days |
| Deutsche Post | Over €50.00 | Free | 2-4 Business Days |
|
DHL Paket (Faster Delivery) |
€0.00 - €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 Selected EU Countries / Regions
Available EU shipping destinations are shown at checkout based on your shipping address. For orders shipped to selected EU countries or regions outside Germany, we use FedEx Regional Economy.
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| FedEx Regional Economy | €0.00 - €100.00 | €7.95 | 3-5 Business Days |
| FedEx Regional Economy | Over €100.00 | Free | 3-5 Business Days |
EU orders may be fulfilled from our Munich warehouse or, when applicable, from our Shenzhen warehouse depending on inventory availability. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.
2.3 United States
| Region | Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|---|
|
Continental U.S. (50 States) |
USPS Ground Advantage | €0.00 - €45.00 | €4.95 | 3-7 Business Days |
| USPS Ground Advantage | Over €45.00 | Free | 3-7 Business Days | |
| USPS Priority Mail | €0.00 - €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 | €0.00 - €60.00 | €6.95 | 5-9 Business Days |
| USPS Ground Advantage | Over €60.00 | Free | 5-9 Business Days |
Non-Continental U.S. regions include Alaska, American Samoa, Guam, Hawaii, the Marshall Islands, the Northern Mariana Islands, Palau, Puerto Rico, the U.S. Virgin Islands, and U.S. Armed Forces addresses.
2.4 International Destinations Outside the EU
For selected international destinations outside the EU, including Switzerland, the United Kingdom, and Norway, shipping rates are as follows:
| Order Amount | Shipping Cost |
|---|---|
| €0.00 - €300.00 | €19.95 |
| Over €300.00 | Free |
For non-EU destinations, import duties, taxes, and customs fees may be charged by the destination country and are the responsibility of the recipient.
3. Warehouses & Fulfillment
Our products may be stored in our Munich, Arlington, and Shenzhen warehouses. The actual shipping warehouse depends on product availability and destination.
3.1 Munich Warehouse
For products stored in our Munich warehouse, we use Deutsche Post or DHL Paket for domestic deliveries within Germany. For selected EU destinations outside Germany, we use FedEx Regional Economy.
3.2 Arlington Warehouse
For products stored in our Arlington warehouse, we use USPS or UPS for deliveries within the United States.
3.3 Shenzhen Warehouse
For pre-order items or products fulfilled directly from our Shenzhen warehouse, we arrange reliable international shipping based on destination and inventory status. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.
4. Inventory, Pre-orders & Split Shipments
- Inventory Status: Please check the product page for real-time stock information. If an item is out of stock in our local warehouses, it may be marked as “Pre-order”.
- Pre-order Fulfillment: Pre-order items may be shipped directly from Shenzhen or restocked to a local warehouse first before final delivery.
- Split Shipments: If your order contains both in-stock and pre-order items, we may ship them separately. No additional shipping fee will be charged for split shipments caused by our fulfillment arrangement.
5. Customs, Taxes & Delivery Issues
5.1 Customs and Taxes
For EU Member States:
Whether shipped from Germany or China, OpenELAB covers applicable import duties and taxes under DDP service where required. Customers in EU member states should not be charged additional import duties or VAT upon delivery.
For destinations outside the European Union, such as Switzerland, Norway, and the United Kingdom, import duties, taxes, and customs fees may be charged by local authorities upon delivery. These fees are the responsibility of the recipient.
5.2 Damaged, Delayed, or Lost Parcels
Please inspect your parcel upon delivery where possible. If you notice visible damage, please report it to the courier and contact us as soon as possible. This does not affect your statutory consumer rights.
If your parcel is delayed, lost, returned to sender, or the tracking information has not updated for an unusual period of time, please contact us at info@upenelab.com. We will assist you in checking the shipment status with the courier.
5.3 Incorrect Address or Failed Delivery
If a parcel cannot be delivered due to an incorrect or incomplete address provided by the customer, refusal of delivery, or failure to collect the parcel, additional shipping or return costs may apply.
6. VAT
For orders within the EU, VAT is collected at checkout according to the applicable destination rules. No additional VAT should be collected upon delivery for EU member state orders covered under our DDP shipping arrangement.








