Modbus RTU Communication Through ESP32 NORVI Devices
This guide will explore how Modbus RTU communicates through ESP32 using NORVI Controllers, enabling efficient data transmission and remote monitoring or control capabilities. A detailed
There are three types of NORVI Expansion modules are available as follows;
LoRa communicaon module with the RYLR896 transceiver provides ultra-long range spread spectrum communicaon and high interference immunity whilst minimising current consumpon. The module is cerfied by NCC and FCC.
Nb-IoT communicaon module with the BC95-G provides ultra low power communicaon interface for NORVI controllers. The module supports the global bands making it applicable around the world with a super high sensivity.
I2C Interface with controller
4 channel 0 – 10V inputs with ADS1115 16 bit ADC provides high accuracy analog inputs.
I2C Interface with controller
4 channel 0 – 10V inputs with ADS1115 16 bit ADC provides high accuracy analog inputs.
I2C Interface with controller
2 channel thermocuple interface, with cold juncon compensaon, straight temperature readouts with 0.25′ C resoluon.
I2C Interface with controller
2 channel load cell interface with HX711 24 bit ADC
I2C Interface with controller
Coverage and Range: LoRa (Long Range) technology excels in providing long-range communication capabilities, making it ideal for projects that require connectivity over large distances or in areas with limited infrastructure. NB-IoT (Narrowband IoT) operates on existing cellular networks and offers better coverage in urban areas but may have limitations in remote or rural locations.
Power Consumption: NB-IoT typically consumes less power compared to LoRa, making it suitable for battery-operated devices or applications where power efficiency is critical. LoRa, on the other hand, is more suitable for applications where power consumption is less of a concern, but long-range communication is essential.
Data Rate and Bandwidth: LoRa provides higher data rates and bandwidth compared to NB-IoT, allowing for faster transmission of large volumes of data. If your project requires high-speed data transfer, LoRa may be the preferred choice. However, NB-IoT’s lower data rates are often sufficient for applications that involve periodic transmission of small data packets, such as sensor readings.
Cost: LoRa modules and infrastructure may have lower upfront costs compared to NB-IoT, as LoRa operates on unlicensed spectrum, reducing the need for expensive cellular subscriptions or infrastructure. Analog input expansions, depending on the specific components and implementation, can offer a cost-effective solution for projects with simpler requirements or budget constraints.
Interference and Regulation: LoRa operates in the unlicensed ISM (Industrial, Scientific, and Medical) bands, which may be susceptible to interference from other devices operating in the same frequency range. NB-IoT operates on a licensed spectrum, providing better immunity to interference but requiring compliance with cellular regulations and potential subscription costs.
Sensor Compatibility: Analog input expansions allow for direct interfacing with analog sensors, making them suitable for projects that require integration with a wide range of analog sensors without the need for additional digital conversion hardware. However, LoRa and NB-IoT modules may require additional sensors or interfaces to connect to analog sensors, adding complexity and cost.
This guide will explore how Modbus RTU communicates through ESP32 using NORVI Controllers, enabling efficient data transmission and remote monitoring or control capabilities. A detailed
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