OpenDTU Hoymiles DIY Kit - ESP32 + Display + NRF24L01+ Module + Socket + Cable

Product Description:

openDTU / AhoyDTU DIY Kit

This DIY kit is suitable for reading the data from a Hoymiles inverter.

Communication with Hoymiles inverters is via 2.4 GHz radio frequency. It is possible to retrieve current values ​​such as power, current, and daily energy consumption. Setting parameters such as the power limit via web interface or MQTT.

The following Hoymiles inverters 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

Other inverters 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: OpenDTU compatibility most likely depends on the inverter's serial number. Current information indicates that TSUN inverters with a serial number starting with "11" are supported, while inverters with a serial number starting with "10" are not.

The optionally included OLED display boasts high image quality. At approximately 2.44 cm in size, it has a resolution of 128 x 64 pixels. This ensures that text and graphics are displayed with a high level of detail and sharpness.

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

This offer includes several options to choose from:

Set + OpenDTU Firmware = ESP32 DevBoard incl. OpenDTU Firmware + NRF24L01+ + Socket + 10cm Jumper Cable

Set without Firmware = ESP32 DevBoard + NRF24L01+ + Socket + 10cm Jumper Cable

ESP32 DevBoard only = ESP32 board only

NRF24L01+ & Socket only = Radio module & Socket only Socket

NRF24L01+ only = radio module only

NRFL01 Socket only = socket only

0.96 inch OLED Display only = 0.96 inch OLED Display Blue only

10cm Cable only = 10cm 8-pin + 4-pin jumper cable only

OpenDTU is an open-source project and is licensed under the following license:

GNU General Public License v2.0

More information about the license, firmware, and installation:

https://github.com/tbnobody/OpenDTU

Important Note:

No soldering required. Simply connect the pin cables. Please refer to the setup instructions for initial commissioning. In particular, the display must be activated using a configuration file.

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

Installing AhoyDTU is also possible. However, this must be done manually. For more information see link:

https://github.com/lumapu/ahoy

Specs ESP32:

Wi-Fi Type: IEEE 802.11 b/g/n 2.4GHz

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

Bluetooth: Classic and BLE

Chipset: ESP-32

Processor: Tensilica LX6 dual-core

Memory: 512kB

Memory: 4MB

Clock frequency: 80-240MHz

Operating voltage: 3.3V / 5V

Operating current average: 80mA

Power supply required min. rated power: 500 mA

Interfaces: UART / I2C / SPI / DAC / ADC

Working temperature: -40°C - 85°C

USB-C port

Compatible with Arduino

Compatible with NodeMCU

Compatible with Tasmota

Compatible with many shields/modules

Specs NRF24L01+:

Model: NRF24L01+

2.4Ghz radio module

Frequency range: 2400 - 2525 MHz

Radio channels: 6

Operating voltage: 1.9V - 3.6V

Operating current average: 12.5mA

Standby consumption: 32µA

Wakeup time: 130µS

Transmission rate: up to 2Mbps (2Mbps/1Mbps/250Kbps)

Antenna: integrated in the PCB board

Size: 28.4 x 15 x 5.6 mm

PIN spacing: 2.54 mm

Operating temperature -40 - 85°C

SPI interface for microcontrollers like Arduino Raspberry Pi

Specs Display:

OLED display module

Model: SSD1306

Size: 0.96 inch / 2.44cm

Resolution: 128 x 64 pixels

Viewing angle:> 160°

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 I/O ports

Backlight: OLED self-illuminating, no backlight required

Pin definition:

1. VCC: 3.3-5V

2. GND: ground

3. SCL: Serial Clock

4. SDA: Serial Data

More information:

More:

New goods available immediately

Set variants:

Display + Set + OpenDTU Firmware Set + OpenDTU Firmware style="padding: 5px 8px; border: 1px solid rgb(204, 204, 204); border-image: none; display: inline-block; box-sizing: border-box;">Set without firmware only ESP32 DevBoard only Socket NRF24L01+ only NRFL01 socket only OLED Display only 10cm jumper cable