OpenDTU Hoymiles DIY Kit Display SSD1306 ESP32 CMT2300A Antenna Cable HMS HMT

Article description:

Opendtu / Ahoydtu Diy Kit

This DIY KIT is suitable for reading the data of a hymile inverter.

Communication with the Hymiles interverters takes place via 868/915MHz radio. It is possible to access current values ​​such as power, electricity, daily energy. Setting parameters such as the performance limit via web interface or MQTT.

The following Hymiles Referees are currently supported by Opendtu with the CMT2300A radio module: HMS-300-1T, HMS-350-1T, HMS-400-1T, HMS-450-1T, HMS-500-1T, HMS-600-2T, HMS-700-2T, HMS-800-2T, HMS-900-2T, HMS-1000-2T, HMS-1600-4T, HMS-1800-4T, HMS-2000-4T, HMT-1600-4T, HMT-1800-4T, HMT-2000-4T, HMT-1800-6T, HMT-2250-6T

The optionally contained OLED Dispaly impresses with a high quality of representation. With the size of approx. 2.44cm, it has a resolution of 128 x 64 pixels. This shows texts and graphics with a high level of detail and sharpness.

With the I2C connection you can easily integrate the display into your DIY projects. Completely compatible with Arduino, 51 series, MSP430 series, STM32/2, CSR IC, etc.

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Also available as a set with the NRF24L01+ radio module for Hoymiles HM inverters:

Opendtu Hoymiles DIY Kit Display SSD1306 ESP32 NRF24L01+ Antenna Socket Cable

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This offer contains different variants to choose from:

Set white + opendtu firmware = 0.96 "OLED display white + ESP32 Devboard incl. Opendtu firmware + CMT2300A + antenna + socket + 10cm jumper cable

Set blue + opendtu firmware = 0.96 "OLED display blue + ESP32 Devboard including Opendtu firmware + CMT2300A + antenna + socket + 10cm jumper cable

Set white without firmware = 0.96 "OLED display white + ESP32 Devboard + CMT2300A + antenna + socket + 10cm jumper cable

only 0.96 "OLED display white = only display in white

only 0.96 "OLED display blue = only display in blue

Only ESP32 Devboard = only ESP32 board

Only CMT2300A & Antenna = only radio module & antenna

only 10cm cable = 10 jumper cable

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Opendtu is an open source project and is under the license:

GNU General Public License V2.0

Further information on license, firmware and installation:

https://github.com/tbnobody/opendtu

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Important NOTE:

No soldering required. Only the PIN cables have to be plugged together. Please note the facility instructions for initial commissioning. The display in particular must be activated with a configuration file.

A QR link or a link to the instructions are included in the form of an A6 flyer.

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It is also possible to install Ahoydtu. However, this must be carried out itself. For more information, see link:

https://github.com/lumapu/ahoy

Specs ESP32:

Wi-Fi type: IEEE 802.11 B/g/n 2.4GHz

Security protocol: WEP/WPA-PSK/WPA2-PSK

Bluetooth: Classic and BLE

Chipset: ESP-32

Processor: Tensilica LX6 dual core

RAM: 512KB

Storage: 4MB

Tact frequency: 80-240MHz

Operating voltage: 3.3V / 5V

Operating current average: 80mA

Power supply required min. Nominal power: 500 mA

Interfaces: UART / I2C / SPI / DAC / ADC

Work temperature: -40 ° C - 85 ° C

Micro USB connection

Compatible with Arduino

Compatible with Nodemcu

Compatible with Tasmota

Compatible with many Shields/modules

Specs CMT2300A & Antenne:

Model: E49-900MBL-01 CMT2300A

868/915MHz radio module

Frequency range: 850 MHz ~ 930 MHz

Max. Single performance: 20dbm

Communication distance: up to 2.5km

Operating voltage: 2,6V - 3.6V

Supports low-power mode, suitable for battery operation

Data transfer rate from 0.5 kbps to 300 kbps

Operating temperature: -40 to 85°C

Size: 58 x 27 x14 mm

PIN distance: 2.54 mm

Automatic transmission of broken packages

SPI interface for microcontrollers like Arduino Raspberry Pi

IPEX interface incl. 4dbi Antenna

Specs display:

Oled Display Module

Model: SSD1306

Size: 0.96 inches / 2.44cm

Resolution: 128 x 64 pixels

Consideration angle:> 160 °

Supported platform: series 51, MSP430 series, Series STM32/2 etc.

Very low power consumption: 0.04 W in normal operation

Wide voltage support: DC 3.3V-5V

Working temperature: -30 ° C - 80 ° C

Communication method: IIC, only 2 E / A-ports

Back lighting: OLED self-lighting, no backlight required

pin definition:

1. VCC: 3.3-5 V

2. GND: mass

3. SCL: serial clock

4. SDA: Serial data

Further information:

Additional:

Brand new immediately available

Set variants:

Set white or blue + opendtu firmware Set white or blue without firmware only 0.96 "OLED display white or blue Only ESP32 Devboard Only CMT2300A & Antenna Only 0.96 inch OLED display Only 10cm jumper cable