The M5Stack DinMeter v1.1 is a compact 1/32 DIN panel meter with an upgraded Stamp-S3A controller, integrated display and rotary encoder, wide 636V input, and flexible mounting for embedded control and monitoring applications.

The M5Stack DinMeter v1.1 is an iterative upgrade of the original 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 cut-out 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.

Lithium Battery Shipping: Due to courier restrictions, this product can only be shipped within the United Kingdom. With this item in your cart, your shipping options will be limited and may cost more than our usual rates. Why?

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

Specifications

Resources

• Product Documents

Package Contents

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