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

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 2.4GHz via 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 NRF24L01+ radio module: HM-300-1T, HM-350-1T, HM-400-1T, HM-600-2T, HM-700-2T, HM-800-2T, HM-1000-4T, HM-1200-4T, HM-1500-4T

Further inverter supported by Opendtu: Solenso SOL-H350, Solenso SOL-H400, Solenso SOL-H800, TSUN TSOL-M350*, TSUN TSOL-M800*, TSUN TSOL-M1600*, E-Star HERF-800, E-Star HERF-1600, E-Star HERF-1800

*Note on TSUN compatibility: The compatibility with Opendtu is most likely related to the serial number of the inverter. Current findings indicate that TSUN inverters are supported with a serial number that begins with "11", while inverter is not supported with a serial number that begins with "10".

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 CMT2300A radio module for Hoymiles HMS & HMT inverters:

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

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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 + NRF24L01 + + antenna + socket + 10cm jumper cable

Set blue + opendtu firmware = 0.96 "OLED display blue + ESP32 Devboard including Opendtu firmware + NRF24L01 + + antenna + socket + 10cm jumper cable

Set white without firmware = 0.96 "OLED display white + ESP32 Devboard + NRF24L01 + + 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 NRF24L01+ & Ant. & Socket = only radio module & antenna & socket

Only NRF24L01+ & Antenne = only radio module & antenna

Only NRFL01 Socket = just socket

only 10cm cable = 1x 8pin + 1x 4pin 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 NRF24L01+ & Antenne:

Model: NRF24L01+

2.4GHz radio module

Frequency range: 2400 - 2525 MHz

Radio channels: 6

Max. Single performance: 20dbm

Operating voltage: 1.9V - 3.6V

Max. Power consumption transmission mode: 115mA

Max. Power consumption Reception mode: 45mA

Standby consumption: 4.2µA

Wakeup time: 130µs

Transmission rate: up to 2MBPS (2MBPS/1MBPS/250KBPS)

Antenna performance (peak): 2DB

Size: 41.0 x 15.5 x 5.6 mm

PIN distance: 2.54 mm

Operating temperature -20 - 70 ° C

Automatic transmission of broken packages

SPI interface for microcontrollers like Arduino Raspberry Pi

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 NRF24L01+ & Antenne & Socket Only NRF24L01+ & Antenne Only NRFL01 socket Only 0.96 inch OLED display Only 10cm jumper cable