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Description
M5Stack PowerHub IoT Development Kit (ESP32-S3)Description: PowerHub Programmable Multi Channel Power Controller PowerHub is a programmable controller designed for multi channel power management, providing precise control, monitoring, and low power operation for industrial and IoT systems. It is powered by the ESP32 S3 WROOM 1U N16R8 main control module, featuring a dual core Xtensa LX7 processor running up to 240 MHz, with integrated 2. 4 GHz Wi Fi, 16MB Flash, and 8MB PSRAM. Dual Processor
Description:
PowerHub Programmable Multi-Channel Power Controller
PowerHub is a programmable controller designed for multi-channel power management, providing precise control, monitoring, and low-power operation for industrial and IoT systems. It is powered by the ESP32-S3-WROOM-1U-N16R8 main control module, featuring a dual-core Xtensa® LX7 processor running up to 240 MHz, with integrated 2.4 GHz Wi-Fi, 16MB Flash, and 8MB PSRAM.
Dual-Processor Architecture for Precise Power Control
An onboard STM32G031G8U6 coprocessor works in conjunction with multiple INA226 voltage and current monitoring ICs and an electronic switch design to enable accurate power state management across multiple expansion interfaces. This architecture delivers fine-grained power consumption monitoring, reliable power switching, and low-power wake-up functionality for the entire system.
Flexible USB Connectivity
The USB Type-C interface supports firmware download and USB OTG functionality. An internal USB interface switch allows the bottom USB port to be dynamically routed to either the front USB Type-A or USB Type-C interface, enabling flexible expansion of USB peripherals.
Multiple Power Input Modes
PowerHub features an efficient and robust power management system that supports multiple power supply options, including DC input, 2S lithium battery power, and PWR485 / PWR CAN input power. This design ensures stable operation across a wide range of deployment scenarios, from fixed industrial installations to mobile or battery-powered systems.
Industrial Communication & Expansion Interfaces
To support diverse applications, PowerHub is equipped with 2 × HY2.0-4P Grove ports, RS485, and CAN bus communication interfaces. These interfaces enable seamless integration with sensors, actuators, and industrial control equipment, making system expansion straightforward and reliable.
Application Scenarios
PowerHub is well suited for industrial automation control, smart home systems, and other IoT applications that require reliable power distribution, real-time monitoring, and flexible communication. It provides developers with a stable, efficient, and scalable power management solution for professional IoT deployments.
Features:
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ESP32-S3-WROOM-1U-N16R8 core module
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Supports low-power timed wake-up
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USB Type-A / USB Type-C expansion ports
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2 x HY2.0-4P expansion ports
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2.54-16P expansion bus interface
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RS485 communication interface (with 120Ω terminal resistor switch)
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CAN bus communication interface (with 120Ω terminal resistor switch)
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2.4 GHz SMA mini antenna
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Multiple power supply modes:
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PWR485/PWR CAN input power
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2S battery power supply
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DC 7 ~ 20V input power
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Human-machine interaction:
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Multi-channel status indicator LEDs
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3 x physical buttons
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Multiple mounting options:
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Magnetic design for easy attachment to metal surfaces
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Cross mounting hole design on the back for easy wall mounting
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LEGO mounting holes
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M2 screw holes
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Specifications:
SoC: ESP32-S3-WROOM-1U-N16R8@Dual-core Xtensa LX7 processor, up to 240MHz
MCU: STM32G031G8U6
Flash: 16MB
PSRAM: 8MB
Wi-Fi: 2.4 GHz Wi-Fi
Expansion Ports: 2 x HY2.0-4P + EXT 2.54-16P
RS485 Interface:
Connector type: VH3.96-4P with 120Ω terminal resistor switch
Reverse input voltage: DC 9 ~ 20V
CAN Interface:
Connector type: XT30 (2+2) with 120Ω terminal resistor switch
Reverse input voltage: DC 9 ~ 20V
USB Interface: 1 x USB Type-A, 2 x USB Type-C
RGB LED: 8 x WS2812
Antenna Specs: Size: 15 x 14mm, SMA connector (inner thread, inner hole), operating band: 2.4 GHz, gain: 2dB, VSWR ≤ 1.8
Compatible Battery: NP-F550/750/950, lithium 2S @ 7.4V
DC Power Input Port: Input voltage: DC 9 ~ 20V, spec: 5.5 x 2.1 mm, polarity: positive inside, negative outside
Operating Temp: 0 ~ 40°C
Product Size: 88.0 x 56.0 x 38.5mm
Product Weight: PowerHub: 71.0g
PowerHub Kit (with battery): 174.8g
Package Size: 110.0 x 73.0 x 42.0mm
Gross Weight:
PowerHub: 105.5g
PowerHub Kit (with battery): 208.2g
Inclusions:
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1 x PowerHub
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1 x NP‑F550 2000mAh removable battery (optional)
Applications:
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Smart Home
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Industrial Automation
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
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4.8 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Looks nice, easy to install
Color: Rustic Brown, Number Of Shelves: 2, Size: 22in
This shelf is lightweight, looks nice, and was easy to install. It comes with a little level to help you install it properly. There are plenty of mounting holes to choose from, so it is easy to screw it directly into a stud, or to just use holes that are convenient for you. It comes with a plethora of mounting hardware.
I mounted mine a bit high up and chose to mount it upside down so that I wouldn't see the three screws that hold the shelf to the mounting bracket.
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Reviewed in the United States on April 8, 2026
★★★★★ 5
Solid Floating Shelves 🛠️🏠
Color: Black, Number Of Shelves: 4, Size: 15.7in
I have installed four sets of the black floating shelves in my office. They are made of high quality materials, featuring a sophisticated black woodgrain finish with a natural texture. Supposedly, each unit can handle up to 22 pounds, though I would not recommend testing that limit with your vintage bowling ball collection if you value your flooring. They are awesome.
The value is good for a set of two. Each shelf measures 22x7x1 (56x17x3 cm) inches, providing a decent amount of storage for books or decor. The installation was straightforward since the hardware for multiple wall types was included. They work well in the kitchen for spices or in the bedroom for personal belongings.
One tip for a secure fit: use a level during installation and make sure the bracket is flush against the wall before sliding the shelf on, or your photos might look like they are sliding off a mountain 📐
These shelves offer a clean, modern look and stay stable once mounted correctly. They are a practical choice for adding functional display space to any room 🖼️
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Good looking shelves and easy install - skip the included drywall anchors
Color: Black, Number Of Shelves: 2, Size: 22in
I installed these shelves in a bedroom to get things off my dresser and some decor. Once mounted they look really nice. The black finish looks clean and modern and they blend in well with the room.
Installation was pretty straightforward. The metal bracket mounts to the wall first and then the shelf slides over the bracket. As long as you take your time lining things up it’s a simple project.
One thing I strongly recommend is not using the white plastic self-drilling drywall anchors that come with the kit. I’ve used that style before on other projects and they tend to strip out easily and leave larger holes in drywall. I used better anchors instead and the shelves mounted much more securely.
The rest of the hardware worked fine and once installed the shelves feel solid and hold items well.
Pros
- Clean modern look
- Easy installation
- Feels solid once mounted
- Good size for books or decor
Cons
- The small level included isn’t very accurate — use your own level
- One of the metal brackets was slightly bent out of the box but straightened out easily
Helpful tip:
Use your own level and better drywall anchors if you have them. It makes installation easier and the shelves will mount much more securely.
Final thoughts:
For the price these are nice looking floating shelves that install easily and work well for light storage and decor.
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Reviewed in the United States on March 13, 2026
★★★★★ 5
Cheap, and effective!
Color: Black, Number Of Shelves: 4, Size: 15.7in
Looks good, works great, low cost. I'll be purchasing more in the future.
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Reviewed in the United States on May 12, 2026
★★★★★ 4
Cute for coffee bar!
Color: Black, Number Of Shelves: 4, Size: 15.7in
Great for above my coffee bar. Easy to mount and align. Seems stable!
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Reviewed in the United States on April 14, 2026