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ModView nRF52833 BLE + RS485 Data Logger
Low-power embedded board for IoT communication, data logging, telemetry applications
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Features Nordic nRF52833 SoC with BLE 5.1 and RS485/422 communication
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Supports SD card storage, USB-C, and Li-ion battery management
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Compact design ideal for IoT, telemetry, and solar-powered systems
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Key Features
- High-performance Nordic nRF52833-QDAA MCU with BLE 5.1 and 2.4 GHz protocols
- RS485/422 connectivity via MAX13487EESA with automatic direction control
- Li-ion and solar power management with CN3791 MPPT charger support
- Flexible power input options: USB-C, VIN (2–16 V), or battery
- Expandable storage with microSD and W25Q16 SPI Flash for data logging
- Robust protection with ESD, TVS diodes, and reverse-polarity safeguards
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Applications
- Industrial RS485 Modbus communication with BLE monitoring
- Solar-powered IoT data logging and environmental monitoring
- Remote telemetry and condition monitoring systems
- Battery-operated BLE sensors or gateways
- Wireless configuration of RS485-based devices
- Energy and environmental monitoring platforms
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Specifications
- Microcontroller: nRF52833-QDAA (ARM Cortex-M4F, 64 MHz, 512 KB Flash, 128 KB RAM)
- Wireless Connectivity: BLE 5.1 and 2.4 GHz proprietary protocols
- Communication Interfaces: RS485 (MAX13487EESA), UART, SPI, I²C, GPIO
- Memory: 16 Mbit W25Q16 SPI Flash and optional microSD card (SPI)
- Battery Charging: CN3791, 4 A Li-ion charger with MPPT
- Voltage Regulation: TPS63070 (Buck-Boost), TLV75533 LDO 3.3V, 500 mA
- Indicators: Power, BLE status (green), fault/error (red)
- Connectors: UFL antenna, SD card, USB-C, RS485 screw terminal, JST headers
- Protection: ESD, TVS diodes, reverse polarity via MOSFET
- Operating Temperature: -40°C to +85°C