M5Stack CM4Stack Development Kit
📦 Location of the warehouse: China
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M5Stack CM4Stack Development Kit
CM4STACK is an integrated microcontroller built around the Raspberry Pi Compute Module 4. It harnesses the capabilities of the CM4104032 module, boasting impressive features such as built-in WiFi, 4GB of memory, and a spacious 32GB eMMC storage. This compact and efficient controller is designed to streamline projects and deliver exceptional performance.
CM4STACK features a vivid 2.0-inch IPS-LCD screen with a capacitive touch, offering a crisp resolution of 320x240. It also provides convenient connectivity options, including two USB3.2-A ports (pcie+ASM3042) and a versatile USB-C (2.0) interface that supports OTG and power delivery. HDMI, Gigabit Ethernet RJ45, and DC-JACK 12V @ 3A are also provided for seamless integration.
CM4STACK goes beyond the basics with its expandability and security features. It offers two HY2.0-4P expansion ports, providing I2C and UART interfaces respectively for easy integration of additional modules. It comes equipped with a built-in 2W speaker and AW88298 16-Bits I2S amplifier, ensuring high-quality audio output. It also includes a dedicated ATECC608B security encryption chip and RTC chip BM8563, bolstering data protection and real-time clock functionalities. To guarantee optimal cooling, CM4STACK features an active cooling fan and an aluminum alloy heat sink frame.
Designed with versatility in mind, CM4STACK supports various mounting options, including DIN rail, wall hanging, and screw fixing methods. This makes it an ideal choice for industrial automation, smart homes, and IoT applications. Experience the power and flexibility of CM4STACK and unlock new possibilities for projects.
To learn more about the CM4Stack boot configuration, visit CM4Stack Quick Guide (by Adam), or https://docs.m5stack.com/en/quick_start/cm4stack
| SKU | Difference |
|---|---|
| K127 | Paired with Japanese power adapter |
| K127-US | Paired with an American version power adapter |
| K127-EU | Paired with a European version power adapter |
Features
- High-performance embedded system: built-in multiple powerful chips and interfaces, equipped with a 2.0-inch LCD screen and touch function, capable of displaying high-quality videos and images.
- Multiple interfaces and functions: including antenna interface, 2W speaker, HDMI interface, USB-C (2.0) interface, USB3.2 interface, Gigabit Ethernet interface (RJ45), I2C interface, serial port, and DC power input port, supporting various peripheral devices and data transmission methods.
- Security performance: equipped with a security authentication chip AW32901ID-KEY (ATECC608B), capable of secure data transmission and storage.
- Clock function: equipped with RTC chip BM8563, capable of clock function.
- Heat dissipation design: equipped with a heat dissipation base and heat dissipation fan to ensure stable system operation for a long time.
Includes
- 1 x CM4Stack
- 1 x CM4Stack Power Adapter (input:100-240VAC,output:DC_12V 3A)
- 1 x Hex key 2mm
- 1 x CM4Stack instruction manual
- 1 x CM4Stack base snap
- 1 x CM4Stack screw holder
Applications
- Industrial Automation
- Smart Home
- Internet of Things (IoT)
- Education and Development
Specification
| Resources | Parameters |
|---|---|
| CM4 Mainboard | CM4104032, processor: Broadcom BCM2711, quad-core Cortex-A72 64-bit SoC, clock speed 1.5 GHz, running memory (RAM): 4G, storage (eMMC): 32G |
| 2.0 inch LCD | screen with touch function and ST7789V2 controller |
| Antenna Interface | connector for an external antenna |
| Speaker | 2W audio output with AW88298 driver |
| USB-C Port | USB 2.0 port with OTG function, powered by MP8759 and AW32901 controllers |
| I2C Interface | inter-integrated circuit interface for communication with other devices |
| Serial Port | communication interface for transmitting and receiving serial data |
| AC Power Input | 100-240VAC power input connector |
| DC Power Input | 12V/3A DC power input connector |
| Gigabit Ethernet Port | RJ45 port for connecting to a gigabit Ethernet network |
| USB 3.2 Ports | Two USB 3.2 ports with ASM3042 controllers |
| Aluminum Heat Sink | DIN-rail mounted heat sink with a built-in cooling fan (ME1502) |
| Download Button | button for entering the download mode |
| HDMI Port | connector for transmitting high-definition video and audio |
| RTC | real-time clock module with BM8563 |
| SY8003 and ME1502 | Power management and control ICs |
| AW88298 | Audio amplifier IC |
| MP8759 and AW32901 | USB power delivery and type-C port control ICs |
| ID-KEY (ATECC608B) | cryptographic authentication IC for secure communication |
| ASM3042 | USB 3.2 host controller |
| BM8563 | Real-time clock IC |
| WIFI | 2.4 GHz, 5.0 GHz IEEE 802.11 b/g/n/ac |
| Product Size | 59*46*44mm |
| Package Size | 160mm*107mm*47mm |
| Product Weight | 118.8g |
| Package Weight | 353.4g |
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 for Germany and EU* countries
(For Products in Munich Warehouse)
2.1 Shipping options for an order value of up to €30 inside Germany or €50 inside the EU*
Shipping Options:
| Shipping Options | Germany | EU* |
|---|---|---|
|
Deutsche Post |
€3.5 Arrive in 3-4 Business Days |
€6 Arrive in 5-9 Business Days |
|
DHL Paket |
€6 Arrive in 2-3 Business Days |
€15 Arrive in 3-7 Business Days |
|
DHL Express |
€14 Arrive in 1-2 Business Day |
€65 Arrive in 2-3 Business Days |
2.2 Free shipping options for an order value of above €30 inside Germany or €50 inside the EU*:
| Free Shipping Options | Germany | EU* |
|---|---|---|
|
Deutsche Post |
Free Above €30 | Free Above €50 |
|
DHL Paket |
+ €2 for Above €30 / Free Above €60 | + €8 for Above €50 / Free Above €80 |
|
DHL Express |
+ €10 for Above €30 | + €60 for Above €50 |
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Certain EU Countries are not included in our EU Zone definition: United Kingdom (excluding Ireland), Switzerland, Liechtenstein, Vatican City, Albania, Belarus, Norway, Ukraine, and Iceland. For the above countries, the International Shipping Rule applies.
2.3 Shipping Options for International Countries:
(via Deutsche Post or YunExpress)
| Order Amount | International |
|---|---|
| €0 - €15 | €8 |
| €15 - €30 | €7 |
| €30 - €50 | €6 |
| €50 and above | €4 |
Important Notice:
- Please verify the inventory location on the product page before placing your order to confirm delivery timeframes.
- For products in the Shenzhen warehouse, we will typically first ship the products from the Shenzhen warehouse to our Munich warehouse, which will take around 1.5 weeks. After we receive the shipment in Munich, we will send the items to you. We will only arrange YunExpress shipping from Shenzhen for orders with products in the Shenzhen warehouse worth more than €50.
- If you place an order with products from both Munich and Shenzhen warehouses, we will first ship the products in the Munich warehouse, and then send the remaining products to you when we receive them from Shenzhen.
3. International Warehouse
3.1 German Warehouse
3.2 Chinese Warehouse
4. Customs and Taxes
4.1 How are customs handled by OpenELAB for import or export?
4.2 How is VAT charged when the Customer places an order from OpenELAB?
4.3 What kind of fee will be charged except VAT?
Effective Date: March 27, 2025
At OpenELAB, we are committed to providing accurate product descriptions and delivering high-quality products. If you experience any issues with your purchase, please notify us within 60 days of the shipment date.
1. Warranty Disclaimer
Unless explicitly stated in a specific agreement or purchase order, OpenELAB makes no warranties—express or implied—regarding the fitness, suitability, or merchantability of any product for a particular purpose or special use.
2. Warranty Policy
Warranty Period
The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.
Under this warranty, OpenELAB will make a reasonable effort to repair or replace products free of charge if defects are due to issues with raw materials, design, or manufacturing.
If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.
After the warranty period, support may still be available at a reasonable fee.
Warranty Exclusions
The warranty does not apply in the following cases:
- The product is beyond the 12-month warranty period.
- Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
- Issues caused by Force Majeure events (e.g., natural disasters, war, legal changes, etc.).
- Unauthorized repair attempts by the customer.
- The product is not defective but has been opened and is non-returnable by policy.
3. Returns & Refunds
If you're not satisfied with your purchase, you may be eligible for a return or exchange:
- Return for Refund: Within 15 days of receipt (unopened).
- Return for Replacement: Within 30 days of receipt (damaged or defective).
- Exchange Window: Up to 30 days from receipt.
Please email us at info@openelab.io for a return authorization before sending anything back.
Return Conditions
- Items must be in original, clean, and mint condition with packaging intact.
- Returns of damaged, used, scratched, modified, or programmed items will not be accepted.
- Include the receipt, a brief note with your name, order number, and reason for return.
Shipping & Fees
- Customers are responsible for return shipping to our warehouses in Europe, the US, or China.
- Refunds may be subject to additional shipping fees unless the return is due to our error.
- A flat €8 shipping fee will be deducted for returned items that originally qualified for free shipping.
Payment Platform Fees
For refunds processed through third-party platforms such as PayPal or Braintree, a standard 3.5% service fee may be deducted to cover payment processing costs.
