M5Stack Unit PoE Ethernet embedded controller with ESP32-P4
Need a larger quantity?
Need bulk pricing?
Get a formal quotation with lead time and volume pricing.
For universities, companies, distributors, and project orders.
M5Stack Unit PoE Ethernet embedded controller with ESP32-P4
M5Stack Unit PoE‑P4 is a high‑performance PoE Ethernet embedded controller powered by the ESP32‑P4 SoC (RISC‑V 32‑bit dual‑core @ 360MHz + LP single‑core @ 40MHz). It integrates 16MB Flash and 32MB PSRAM, and features the built‑in IP101GRI Ethernet PHY supporting 10/100 Mbps communication. The Unit PoE also supports PoE power delivery with a maximum output of 6W, including an onboard DC‑DC converter to supply system power, greatly simplifying wiring in practical M5Stack applications.
It is equipped with a 24P FPC display expansion interface (MIPI DSI + TP + BL) and a 24P FPC camera interface (MIPI CSI), supporting high‑resolution display output and image capture. For peripheral expansion, it provides 1x USB Type‑C Host (USB 2.0) port for connecting U disks, HID devices, and other peripherals, plus 1x USB Type‑C OTG/debug port for firmware download. In addition, the Unit PoE‑P4 features a Hat expansion interface, SDIO & ISP IO expansion interfaces, and a Grove interface, enabling flexible connection to a wide range of sensors and peripherals.
The device also integrates an RGB indicator LED, an infrared transmitter circuit, and a user button to support status indication, local interaction, and infrared signal transmission. It is ideal for applications such as industrial HMI, PoE smart terminals, vision acquisition nodes, smart home controllers, and edge computing devices built on the M5Stack ecosystem.
Features
-
ESP32‑P4 main controller:
- 16MB Flash + 32MB PSRAM
-
Peripheral interfaces:
- 1x 24P FPC camera interface: MIPI CSI 2‑Lane
- 1x 24P FPC display expansion interface: MIPI DSI 2‑Lane + TP + BL
- 1x USB Type‑C Host interface (USB 2.0)
- 1x USB Type‑C firmware download / OTG interface (USB 2.0)
-
Ethernet:
- Integrated IP101 10/100M Ethernet PHY chip
- Supports PoE power supply, enabling data transmission and power delivery over a single Ethernet cable
-
Human‑machine interaction:
- 1x RGB LED indicator
- 1x user button
- 1x infrared transmitter
-
Expansion interfaces:
- HY2.0‑4P expansion interface
- Hat2‑Bus 2.54‑16P
- SDIO‑Bus 2.56‑9P
- ISP‑Bus 2.56‑6P
Includes
- 1 x Unit PoE-P4
- 1 x HY2.0-4P Grove Cable (20cm)
Applications
- Industrial Human‑Machine Interface (HMI)
- PoE smart terminals
- Vision acquisition nodes
- Smart home controllers
- Edge computing devices
Specifications
| Specification | Parameter |
|---|---|
| SoC | ESP32-P4NRW32 (RISC-V 32‑bit high‑performance dual‑core processor @ 360 MHz + RISC‑V 32‑bit low‑power single‑core coprocessor @ 40 MHz) |
| Flash | 16MB |
| PSRAM | 32MB |
| Power Input | DC 5V (USB Type‑C) / PoE |
| Ethernet Controller | IP101GRI |
| Ethernet Speed | 10/100M adaptive |
| Ethernet Interface | RJ45 |
| PoE Standard | Compliant with IEEE 802.3at |
| PoE Power | Maximum power 6W |
| Display Interface | 24P FPC MIPI DSI 2‑Lane + TP + BL |
| Display Resolution | MIPI DSI display supports up to 1920×1080 (limited by lane count and frame rate) |
| Camera Interface | 24P FPC MIPI CSI 2‑Lane |
| USB Type‑C | 1x USB Type‑C Host interface (USB 2.0) 1x USB Type‑C firmware download / OTG interface (USB 2.0) |
| Power Consumption | Operating current: 5V @ 73.82mA Infrared transmission: 3.3V @ 23.57mA (instantaneous) RGB: 5V @ 75.32mA Full load (display, camera, IR, RGB, etc.): 277.10mA Deep sleep: 5V @ 19.85mA |
| RGB LED | 1 x NH-B2020RGBA-HF |
| Infrared Transmitter | 1 x MHS153IRCT |
| Operating Temperature | 0 ~ 40°C |
| Product Size | 64.0 x 24.0 x 20.2mm |
| Product Weight | 28.2g |
| Package Size | 65.0 x 33.0 x 21.2mm |
| Gross Weight | 35.0g |
Download Mode
To flash firmware on the M5Stack Unit PoE‑P4, connect the device to a computer via a USB Type‑C data cable. Press and hold the side button for 3 seconds until the green LED lights up. The ESP32‑P4 controller will then enter download mode and wait for firmware flashing, ensuring a smooth and reliable update process.

Access Device Control Page
The factory default firmware of the Unit PoE‑P4 includes a built‑in WEB control panel, supporting RGB LED color control, button press statistics, GPIO pin mode switching, and high/low level output. This makes it easy to manage and configure your M5Stack Unit PoE directly from a browser. To access the device control page:
- Power on the Unit PoE‑P4 and connect it to the Ethernet network.
- Open the serial monitor and note the device’s current IP address.
- Ensure your computer or mobile phone is on the same LAN as the device.
- Access the web control page using one of the following methods:

- Enter
poe-p4.localin your browser - Copy the IP address shown in the serial monitor and paste it into the browser address bar


Schematics
- Unit PoE‑P4 Mainboard Schematics PDF
- Unit PoE‑P4 Power Board Schematics PDF
- Unit PoE‑P4 HAT Expansion Interface Schematics PDF
- Unit PoE‑P4 Model Size PDF
Datasheets
Softwares
Arduino
ESP-IDF
1. General Shipping Information
- We provide reliable shipping services with a tracking number for each order.
- Shipping addresses must be entered in English and should not contain special symbols, so that the courier system can recognize your location correctly.
- 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.
- If you need to cancel or modify your order, please contact us before the order is marked as “Shipped”. Once shipped, the order cannot be canceled or changed.
🚀 Need Faster Shipping?
If you require expedited shipping, please contact our customer support team at info@upenelab.com for a customized quote based on your destination.
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.








