M5Stack Din Meter Programmable Embedded Development Board Keyboard Rotatory Encoder with 1.4-0-inch ST7789 Screen

M5Stack Din Meter Programmable Embedded Development Board Keyboard Rotatory Encoder with 1.4-0-inch ST7789 Screen

Description:
- Din Meter is an embedded development board that adopts the 1/32DIN standard, equipped with a 1.14-inch ST7789 screen and a built-in rotary encoder with buttons, which can accurately record the position of knobs. In addition, The RTC circuit, onboard buzzer, and buttons are used for device interaction and reminder wake-up functions. In terms of power supply, the product design supports wide voltage input of 6-36V DC, and reserves lithium battery interfaces and charging circuits to provide different power supply needs. In addition, the reserved PORTA and PORTB interfaces can facilitate the expansion of I2C and GPIO devices. This product is suitable for parameter measurement and detection, smart home control, Internet of Things projects, smart wearables, access control, industrial control, and educational maker projects.
- Power on: It can be started by pressing the "WAKE" button and the IRQ signal triggered by RTC timing. After completing the triggering of the wake-up signal, the hold (G46) pin needs to be set to high level (1) in program initialization to maintain the power supply. Otherwise, the device will enter sleep mode again.
- Shutdown: When there is no USB external power supply, press the RST button to achieve it; When there is no USB external power supply, set HOLD (GPIO46)=0 during program operation to achieve power off and shutdown.
- If you want to enter download mode, please press and hold the G0 button on StampS3 before turning it on, then release it after powering on.
- Three power supply methods: USB/DC/BAT

Features:
- ST7789V2 screen
- M5StampS3 as the main controller
- Rotary encoder
- Wide voltage input
- Reserved PORTA and PORTB interfaces
- Lithium battery interface (rechargeable)
- 1/32DIN standard (45 x 22.5mm)
- Programming platform: for Arduino, UIFlow

Application:
- Smart Home Detection and Control System
- Access control system
- Industrial control
- Maker and DIY projects

Specification:
- MCU: ESP32-S3 for Xtensa LX7, 8M-FLASH, WIFI, OTG/CDC functions
- Wide voltage input range: 6-36V
- Screen driver: ST7789V2
- Charging current: 100mA
- Grove load capacity:
  PORT-A load capacity: DC5V/Max: 220mA
  PORT-B load capacity: DC5V/Max: 220mA
- Standby current (battery powered standby current): DC4.2V/38.4uA
- Battery holder size: 1.25mm-2p
- Power supply mode: USB/DC DC DC power/battery
- Working temperature: 0-40°C
- Product size 53 x 32 x 30mm
- Packaging size: 137 x 93 x 24mm
- Product weight: 17.6g
- Packaging weight: 46g

Package Included:
- 1 x M5 Din Meter
- 1 x Stick Adhesive Tape
- 1 x Screen Printing Sticker
- 1 x DC-JACK Terminal Input (6 - 36V)
- 1 x Back Bracket