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CONTENTS

M5DinMeter

SKU:K134

Tutorials & Quick Start

Arduino IDE Arduino IDE
Arduino IDE
This tutorial will show you how to program and control Din Meter devices through Arduino IDE
UIFlow2.0 UIFlow2.0
UIFlow2.0
This tutorial will show you how to control the Din Meter device through the UIFlow2.0 graphical programming platform

Description

Din Meter is a1/32 DIN standard embedded development board equipped with a 1.14-inch ST7789 screen and powered by an M5StampS3 as its main controller. It features a built-in rotary encoder for precise knob position tracking. Additionally, it includes an RTC circuit, an onboard buzzer, and buttons below the screen for device interaction and alert notifications. In terms of power supply, the design supports a wide voltage input range of 6-36V DC and has reserved interfaces for a lithium battery and charging circuit to cater to various needs. Moreover, reserved PORTA and PORTB interfaces facilitate the expansion of I2C and GPIO devices. This product is suitable for applications in parameter measurement and detection, smart home control, Internet of Things (IoT) projects, smart wearables, access control, industrial control, and educational maker projects.

On-off Operation
Power On: The device can be powered on by pressing the "WAKE" button or through an IRQ signal triggered by the RTC timer. After the wake-up signal is triggered, it is necessary to set the hold(G46) pin to high (1) during program initialization to maintain power; otherwise, the device will re-enter sleep mode.
Power Off: When there is no USB external power supply, this can be achieved by pressing the RST button; or, when there is no USB external power supply, by setting HOLD(GPIO46)=0 in the program to power off the device.
Download Mode
To enter download mode, please hold down the G0 button on the StampS3 before powering on, then release it after the power is on.
schematics

Power Supply Modes|Three power supply modes: USB/DC/BAT schematics

Din size standard

schematics

Features

  • ST7789v2 screen
  • M5StampS3 as the main control
  • Rotary Encoder
  • Wide voltage input
  • Reserved PORTA and PORTB ports
  • Lithium battery interface (Rechargeable)
  • 1/32DIN standard (45*22.5mm)
  • Programming platform: Arduino, UIFlow

Includes

  • 1x M5DinMeter
  • 1x ADHESIVE PAPER
  • 1x 250mAh Battery
  • 1x tag
  • 1x DC-JACK terminal input (6-36V)
  • 1x Back brace

Applications

  • Smart home detection and control system
  • Access Control System
  • Industrial Control
  • Makers and DIY projects

Specification

Resources Parameters
MCU ESP32-S3@Xtensa LX7,8M-FLASH,WIFI,OTG\CDC function
Wide Voltage Input Range 6-36V
Screen Driver ST7789V2
Screen Resolution 135*240
Charge Current 100mA
Grove Carries Capacity PORT-A Carrying capacity :DC5V/Max:220mA
PORT-B Carrying capacity :DC5V/Max:220mA
standby current(Battery powered standby current) DC4.2V/38.4uA
Battery seat specifications 1.25mm-2p
Power Supply Mode USB/DC Power supply/Battery
Operating Temperature 0-40°C
Product Size 53*32*30mm
Package Size 137*93*24mm
Product Weight 17.6g
Package Weight 46g

EasyLoader

EasyLoader is a simple and fast program burner, which has a built-in product-related case program, which can be burned to the main control through simple steps to perform a series of functional verification.

Download Windows Version Easyloader

Schematic

schematics

PinMap

Port A

image

Port B

image

RTC8563&ENCODER

image

ST7789V2

image

Module Size

module size

Examples

Arduino

Video

  • M5DinMeter Introduction and application