M5Stack DIN Rail Energy Meter V1.1 with Integrated M5Stamp S3A

Description

/* ===== Scoped Description Style ===== */.product-description.rte { font-family: -apple-system, BlinkMacSystemFont, “Segoe UI”, Roboto, “Helvetica Neue”, Arial, sans-serif; color: #2c2c2c; line-height: 1.65; font-size: 16px;}/* ===== Headings ===== */.product-description.rte h2 { font-size: 1.8em; color: #0D47A1; border-left: 4px solid #1f6fe5; padding-left: 12px; margin-top: 32px; margin-bottom: 16px;}/* ===== H3 Titles Optimization ===== */.product-description.rte h3 { font-size: 1.4em; color: #0D47A1; margin-top: 24px; margin-bottom: 12px; font-weight: 500; padding-bottom: 6px; border-bottom: 2px solid #e6e6e6;}/* ===== Paragraphs ===== */.product-description.rte p { margin-bottom: 20px; line-height: 1.8; color: #4a4f57; font-size: 16px;}/* ===== Paragraph Images (only in description) ===== */.product-description.rte img { display: block; max-width: 100%; height: auto; margin: 24px auto; border-radius: 12px; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);}/* ===== Lists ===== */.product-description.rte ul { padding-left: 20px; margin-bottom: 16px; list-style-type: disc;}.product-description.rte li { margin-bottom: 6px;}/* ===== Links ===== */.product-description.rte a { color: #0288D1; text-decoration: none; transition: color 0.3s ease;}.product-description.rte a:hover { color: #01579B;}/* ===== M5Stack-style Spec Table ===== */.product-description.rte .table-container { width: 100%; margin: 24px 0; overflow-x: auto;}.product-description.rte .table-container table { width: 100%; border-collapse: collapse; font-family: inherit; font-size: 14px; color: #2c2f36; background-color: #ffffff; border-radius: 10px; overflow: hidden; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);}.product-description.rte .table-container thead th { background: #1f6fe5; color: #ffffff; padding: 14px 16px; text-align: center; font-weight: 600; border: none; vertical-align: middle;}.product-description.rte .table-container td { padding: 14px 16px; border-bottom: 1px solid #e6ebf2; vertical-align: middle;}.product-description.rte .table-container tbody td:first-child { width: 36%; text-align: center; font-weight: 500; color: #4a4f57; background-color: rgba(31, 111, 229, 0.02);}.product-description.rte .table-container tbody tr:nth-child(even) { background-color: #f7f9fc;}@media (hover: hover) { .product-description.rte .table-container tbody tr:hover { background-color: #eef3ff; }}/* ===== Learn & Documents Button ===== */.product-description.rte #learn-and-documents-btn { display: inline-flex; align-items: center; padding: 6px 14px; background-color: #1f6fe5; color: #ffffff; font-weight: 600; border-radius: 6px; margin-top: 8px; text-decoration: none; transition: background 0.3s ease;}.product-description.rte #learn-and-documents-btn:hover { background-color: #1661c1;}/* ===== Responsive Design for Smaller Screens (with table adjustments) ===== */@media screen and (max-width: 768px) { .product-description.rte .table-container table, .product-description.rte .table-container thead, .product-description.rte .table-container tbody, .product-description.rte .table-container th, .product-description.rte .table-container td, .product-description.rte .table-container tr { display: block; width: 100%; } .product-description.rte .table-container thead { display: none; } .product-description.rte .table-container tbody tr { padding: 12px 0; border-bottom: 1px solid #e6ebf2; } .product-description.rte .table-container tbody td { padding: 8px 16px; border: none; text-align: left; } .product-description.rte .table-container tbody td:first-child { width: 100%; background: none; color: #1f6fe5; font-weight: 600; padding-top: 16px; } .product-description.rte .table-container tbody td:last-child { padding-bottom: 16px; color: #2c2f36; line-height: 1.6; } /* Ensure button appears correctly on mobile */ .product-description.rte #learn-and-documents-btn { font-size: 14px; padding: 8px 16px; }}

Description

DinMeter v1.1 is an iterative upgrade of the DinMeter product, with the core enhancement being the main control module upgraded from Stamp-S3 to Stamp-S3A. DinMeter v1.1 adopts the 1/32 DIN standard digital meter cutout size, allowing direct installation into reserved mounting openings of mainstream equipment such as industrial control cabinets and PLC control boxes, without the need for custom brackets or panel modifications. This significantly reduces integration cost and assembly time. It supports two mounting methods—double-sided adhesive and screw hole fixation—to meet installation requirements in different scenarios. The product integrates a 1.14-inch ST7789 display and a rotary encoder with button, enabling precise knob position tracking and interactive operation. An onboard RTC real-time clock, buzzer, and function buttons support scheduled reminders and wake-up functions. The power supply design is flexible, supporting a wide DC input range of 6 ~ 36V, and includes a lithium battery interface with charging circuitry to adapt to various power scenarios. In addition, the development board provides PORT.A and PORT.B expansion interfaces for easy connection of I2C and GPIO peripherals, making it suitable for various embedded instrumentation display and control input applications.

Features

• ST7789V display
• Stamp-S3A as the main controller
• Rotary encoder
• Wide voltage input
• Reserved PORT.A and PORT.B interfaces
• Lithium battery interface (rechargeable)
• 1/32 DIN standard (45 x 22.5mm)
• Two mounting methods:
  • Double-sided adhesive
  • Screw hole fixation
• Development Platform
  • UiFlow2
  • Arduino IDE
  • ESP-IDF
  • PlatformIO

Includes

• 1 x DinMeter v1.1
• 1 x 250mAh Polymer Lithium Battery
• 1 x 2.54-2P Terminal
• 1 x Plastic Back Clip
• 1 x Adhesive Tape
• 1 x Pin Sticker

Applications

• Smart home monitoring and control systems
• Access control systems
• Industrial control
• Maker and DIY projects

Specifications

Specification	Parameter
SoC	ESP32-S3FN8 @ Xtensa LX7 Dual-core, 240MHz
Flash	8MB
Wi-Fi	2.4 GHz Wi-Fi
USB	USB OTG, USB Serial/JTAG
Wide Voltage Input Range	6 ~ 36V
Display Driver	ST7789V
Display Resolution	135 x 240
Charging Current	100mA
Grove Load Capability	PORT.A Load: DC 5V@220mA PORT.B Load: DC 5V@220mA
Standby Current (Battery Power)	DC 4.2V@38.4uA
Battery Socket Specification	1.25-2P
Power Supply Methods	USB / DC Power / Battery
Operating Temperature	0 ~ 40°C
Product Size	53.0 x 30.0 x 32.0mm
Product Weight	17.8g
Package Size	136.0 x 95.0 x 24.0mm
Gross Weight	44.9g

Learn and Documents

→ DOCUMENTS

Explore more from our collection.