M5Stack Midi Unit with DIN Connector (SAM2695)
📦 Location of the warehouse: US
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M5Stack Midi Unit with DIN Connector (SAM2695)
The MIDI Unit is an all-in-one solution for channel control, audio synthesis, and seamless MIDI interfacing. Tailored for real-time music performance, studio production, and interactive installations, this compact module brings together MIDI signal management, on-board sound generation, and adaptable connectivity, making it a valuable part of any MIDI-focused audio workflow.
Key Features of MIDI Unit
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Integrated
SAM2695
Audio Synthesizer
Built around the powerful SAM2695 chip, this module handles direct MIDI-to-sound conversion, generating rich, expressive tones with no need for extra hardware devices. -
Full MIDI 1.0 Protocol and UART Support
The MIDI Unit ensures universal compatibility with all MIDI 1.0 devices, making communication with synthesizers, controllers, and other gear effortless and reliable. Easily connect to M5Stack or other systems using standard UART. -
Dual Signal Routing Modes
Easily toggle between Bypass mode—direct left/right channel passthrough—and Separate mode, which allows each MIDI port to operate independently for complex signal flows. -
Versatile I/O Options
Both MIDI ports offer support for DIN 5-pin and 3.5mm TRS connections, guaranteeing broad compatibility with your instruments and DAWs. -
Grove Port for MIDI Monitoring and Output
The TXD (Grove) connects to the left MIDI port for monitoring or external control, while the RXD pin lets you trigger the built-in SAM2695 synth from an external controller or microcontroller host. -
Optocoupler Protection
Internal optocoupler isolation shields your workflow from interference and ensures signals stay clean and digitally accurate, even in complex setups. -
Direct 3.5mm Headphone Output
Instantly listen to your MIDI sequences through the 3.5mm audio output, with no other adapters needed for fast monitoring or stage output.
Includes
- 1x MIDI Unit
- 1x HY2.0-4P Grove cable (20cm)
Typical MIDI Unit Applications
- Music Creation – Seamless fit for MIDI gear, DAWs, and synth rigs—perfect for sound design or production.
- Stage Control – Ideal for performance automation, instrument switching, and complex live setups.
- Interactive Sound – Excellent for smart music installations, IoT sound systems, and creative audio projects.
Why MIDI Unit Stands Out
The MIDI Unit offers robust MIDI integration, flexible routing, and quality sound synthesis in a pocket-sized device. Whether you’re building elaborate stage rigs, composing in the studio, or designing digital installations, it empowers you to explore, control, and innovate without boundaries.
Specifications
| Specification | Parameter |
|---|---|
| MIDI Chip | SAM2695 |
| Communication Protocol | Standard MIDI 1.0 protocol |
| Communication Interface | UART (Baud rate: 31,520 bps) |
| Audio Output Interface | 3x3.5mm stereo headphone jack + 2xDIN 5-pin socket |
| Standby Current | DC5V@18.59mA |
| Operating Temperature | 0-40°C |
| Product Size | 48*40*25mm |
| Package Size | 136*92*26mm |
| Product Weight | 28.2g |
| Package Weight | 33.4g |
1. General Shipping Information
- We provide premium shipping methods with a tracking number for each order.
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Shipping address should be input in English without any special symbols to help the courier company recognize your address in the system. We will ship according to the shipping address you provided. Please notify us of any address change before your order is marked "Shipped" to avoid parcel loss.
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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.
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We can ship all in-stock orders within 1 business day as your order has been confirmed.
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All items are inspected before dispatch and are carefully hand-packed.
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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.
2. Shipping Options & Rates (United States)
(For Products in the US Warehouse & Global Warehouse)
2.1 Continental U.S. (50 States)
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| USPS Ground Advantage | $0.00 - $5.00 | $9.99 | 3-7 Business Days |
| USPS Ground Advantage | $5.00 - $50.00 | $5.99 | 3-7 Business Days |
| USPS Ground Advantage | Over $50.00 | Free | 3-7 Business Days |
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USPS Priority Mail (Faster Option) |
$0.00 - $50.00 | $19.99 | 1-4 Business Days |
| USPS Priority Mail | Over $50.00 | $17.59 | 1-4 Business Days |
2.2 Non-Continental U.S.
(Includes Alaska, Hawaii, Puerto Rico, Guam, Virgin Islands, etc.)
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| USPS Ground Advantage | $0.00 - $5.00 | $9.99 | 5-9 Business Days |
| USPS Ground Advantage | $5.00 - $70.00 | $7.99 | 5-9 Business Days |
| USPS Ground Advantage | Over $70.00 | Free | 5-9 Business Days |
Important Notice:
- Before placing your order, please check the inventory location on the product page to confirm the delivery timeframes.
- For products stored in the Global Warehouse (Shenzhen), we will ship them directly from China.
- If you place an order for products from both the U.S. warehouse and the Global warehouse, we will ship your order separately: the products from the Global warehouse will be sent from China, and the products from the U.S. warehouse will be sent from the U.S. warehouse.
3. Warehouse Locations
Our products are stored in both our U.S. and Global warehouses to provide more flexible logistics solutions. On each product's description page, we indicate the specific warehouse location.
3.1 U.S. Warehouse
For products stored here, we use USPS for shipping. Logistics within U.S. are very efficient, with an estimated delivery time of 3-7 business days.
3.2 Global Warehouse (China)
Located in Shenzhen, Guangdong.
For orders shipping from our Global Warehouse, we typically use YunExpress. Given the complexities of international shipping, the estimated delivery time is around 10 business days, though this may vary due to customs processes.
4. Customs and Taxes
Effective Date: December 10, 2025
At OpenELAB, we are committed to providing accurate product descriptions and high-quality electronics. The following policy outlines your rights and obligations, designed to be fair to both our customers and our business operations globally.
1. Warranty Policy
A. Standard Limited Warranty (Global & US)
For customers in the United States, Asia, and other non-EU regions:
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Warranty Period: OpenELAB provides a 12-month warranty from the date of delivery.
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Coverage: This warranty covers defects in material and workmanship under normal use.
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Resolution: We will repair or replace defective units at no charge.
B. Statutory Rights for EU/UK Customers (EU Compliance)
If you are a consumer residing in the European Union or the UK purchasing from our global site:
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Statutory Guarantee: You are entitled to a 24-month statutory guarantee for conformity defects present at the time of delivery, in accordance with EU consumer protection laws.
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Relation: The Standard Limited Warranty (Section 1.A) applies in addition to, and does not replace, your statutory rights.
C. Warranty Exclusions (Applies to ALL Regions)
Warranty coverage is VOID if the damage is caused by:
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Misuse: Incorrect installation, reverse polarity, or exceeding voltage limits.
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Unauthorized Modification: This explicitly includes soldering, cutting pins, modifying the PCB, or flashing unauthorized/beta firmware that "bricks" the device.
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Physical Damage: Drops, moisture/water damage, or electrical surges (lightning).
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Normal Wear & Tear: Consumable parts (e.g., batteries), unless defective upon arrival.
Note: For non-warranty repairs (e.g., customer-induced damage), we may offer repair services for a fee. Shipping and diagnostic costs will be borne by the customer.
2. Return & Refund Policy
A. Return Window
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Standard: You may request a return within 31 days of receiving your order.
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EU Customers: You have the statutory right to withdraw from the contract within 14 days of receipt without giving a reason.
B. Refund Conditions & Restocking Fees
To protect against policy abuse, the refund amount is strictly determined by the condition of the returned item.
1. Full Refund (100%)
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The item is Brand New, Unopened, and Unused.
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The original packaging is intact and sealed.
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All accessories are present.
2. Partial Refund (Restocking Fee / Value Depreciation)
If the item is returned in a condition that prevents it from being sold as new, OpenELAB reserves the right to deduct a Restocking Fee (or "Compensation for Loss of Value" for EU customers) from the refund.
Deductions apply if:
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Signs of Use: Visible scratches, mounting marks on screw holes, or fingerprints.
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Damaged Packaging: Original box is torn, written on, or missing.
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Technical Modification: The device has been powered on, programmed/flashed, or soldered.
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Broken Seals: Anti-static bags or security seals have been opened.
Depending on the severity of the usage/damage, the deduction may range from 15% to 50% of the product price. Items damaged beyond repair due to misuse will not be refunded.
C. Shipping Costs
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Defective / Wrong Item: OpenELAB covers the return shipping cost.
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Customer Remorse (Changed Mind / Ordered Wrong Item): The customer is responsible for all return shipping costs to our designated return center (located in the US, Germany, or China, depending on your region). Original shipping fees are non-refundable unless required by local law.
3. Return Process (RMA)
To ensure a smooth return process, please follow these steps:
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Authorization: Contact us at info@openelab.io before returning any item. Returns without prior authorization will not be accepted.
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RMA Number: We will provide you with a Return Merchandise Authorization (RMA) number and the correct return address.
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Packing: Ship the item back in its original packaging with the RMA number clearly marked on the shipping label (not on the product box).
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Tracking: We strongly recommend using a trackable shipping method. OpenELAB is not responsible for returns lost in transit.
