Product description: DinMeter v1.1 - development module in 1/32 DIN standard - M5Stamp S3 - M5Stack K134
The M5Stack DinMeter v1.1 is a compact development board compliant with the 1/32 DIN standard (45 x 22.5 mm), ideal for DIY projects and industrial applications. The module can be used standalone or combined with accessories and other M5Stack modules , such as the Core or Atom series, via I2C and GPIO ports. Equipped with the ESP32-S3-based M5StampS3 controller, it offers 8MB of Flash memory , WiFi, and OTG/CDC capabilities. The module features a 1.14" (135 x 240 px) display, rotary encoder, RTC circuit, buzzer, and under-screen buttons. It supports voltages from 6V to 36V DC and has interfaces for a lithium battery . Ideal for smart home applications, access control systems, and IoT projects.
Special features of the module
- 1/32 DIN Standard: Compact size of 45 x 22.5 mm, compliant with the 1/32 DIN standard, allows easy integration into a variety of housings and systems.
- ST7789V2 Screen: 1.14-inch high-resolution display.
- M5StampS3 Controller: Based on the ESP32-S3 chip, programmable with Arduino and UIFlow, it features a powerful Xtensa 32-bit LX7 dual-core processor, operating at a core frequency of up to 240 MHz.
- Rotary encoder: allows for precise tracking of the knob position.
- Wide input voltage range: Supports 6V to 36V DC and is equipped with an interface for lithium battery operation and charging.
- PORTA and PORTB interfaces: provide expansion capability for I2C and GPIO devices.
Key Features of DinMeter v1.1
- Data collection: Thanks to built-in sensors such as a rotary encoder and RTC (real-time clock), DinMeter can collect data about the status of the devices it controls.
- Information display: The ST7789V2 color display with a resolution of 135 x 240 px allows you to display measurement results, system states and user interfaces.
- User interaction: Using the built-in buttons and buzzer, you can interact with the device, and it can generate sound notifications.
- Control and monitoring: The ability to program in Arduino and UIFlow environments allows you to create complex control algorithms that can be run on the device.
- Connectivity and expansion: PORTA and PORTB ports allow you to connect additional I2C and GPIO devices, extending the functionality of DinMeter.
Technical specifications of the module
- Development board: M5Stamp S3
- Microcontroller: ESP32-S3
- Built-in system: Xtensa LX7 dual-core processor
- Flash memory: 8 MB
- Wireless communication: WiFi
- Input voltage: 6V to 36V DC
- Screen: ST7789V2, resolution 135 x 240 px
- Power supply mode: USB / DC power supply / battery
- Charging current: 100 mA
- Grove Maximum Load: PORTA and PORTB up to 220 mA at 5 V DC
- Standby power consumption (battery powered): 4.2 V DC / 38.4 uA
- Operating temperature: 0°C to 40°C
- Product dimensions: 53 x 32 x 30 mm
- Weight: 17.8 g
Contents of the set
- DinMeter v1.1 - 1/32 DIN standard development module - M5Stamp S3 - M5Stack K134
- Self-adhesive paper
- 250 mAh battery
- Marker
- DC-Jack terminal connector (6V to 36V)
- Bracket




