Fermion BLE Sensor Beacon Pack of 5 Pieces

The pack contains 5 Fermion BLE Sensor Beacons from DFRobot. Each beacon reads one digital or analog sensor and one I2C sensor and sends the values via Bluetooth Low Energy 5.3. Smartphones, ESP32 and other BLE devices within range receive the data without establishing a connection. Each beacon is powered by a CR2032 button cell; in sleep mode it needs about 650 nA and, according to DFRobot, runs for months to years. Data format (iBeacon, Eddystone or custom format), transmission interval and sensor are set without programming in a graphical interface. Button cells are not included.

Important: Configuration is done with a 3.3 V USB-TTL converter. Each beacon can be permanently programmed only once ("Burn"). Test the settings beforehand with "Run in RAM", which can be repeated as often as needed, but not with I2C sensors; for these, use the configuration files from DFRobot. Analog inputs tolerate at most 1.6 V in ADC mode; connect sensors with a higher output voltage to IO6 with voltage divider.

Recommended Accessories:

Features:

Bluetooth Low Energy 5.3, formats iBeacon, Eddystone or custom format
Built-in 11-bit ADC
Simultaneously one digital or analog sensor and one I2C sensor
Sensors can be powered only during transmission (SW0, SW1)
Pull-up resistors for I2C can be enabled via solder jumpers, open by default
Configuration without programming
Thresholds for alerts in the NanoBeacon BLE Scanner app can be set
Configuration files from DFRobot for several Fermion sensors, for example SHT40, SGP40 and MAX30102

Application Examples:

Measuring soil moisture in the garden without long cables
Sensors in the smart home, for example on doors or in rooms
Data acquisition in agriculture, offices, factories and warehouses
Indoor positioning of objects or pets

Documentation:

Technical Data:

Manufacturer: DFRobot
Manufacturer SKU: TEL0168
Chip: IN100
Operating voltage: 1.1 V to 3.6 V DC
Current when transmitting: 9.1 to 13.8 mA (2.4 GHz, 1 Mbit/s)
Current in sleep mode: 0.625 µA
Inputs: digital, analog, I2C
Sensors simultaneously: 1 digital or analog and 1 I2C
Pins usable as SDA/SCL: 5
ADC: 11 bit
Radio: 2.4 GHz ISM, GFSK
Transmit power: +5.0 dBm
Power supply: CR2032 button cell (holder on the board)
Connections: 2 × 8 solder holes, programming port VCC 3.3 V, GND, IO0 (RX), IO1 (TX)
PCB: 35 × 42 mm
Mounting holes: inner 2 mm, outer 4 mm
Weight: 45.5 g