
VEBLE103
General Features
● On-board proprietary protocol stack
● Bluetooth Smart
● Bluetooth v4.1 specification compliant
● RSSI monitoring for proximity applications
● UART communication
● 128KB memory; 64KB RAM and 64KB ROM
● Compact form factor: 20 x 14.5 mm
● Castellated SMT pads for easy and reliable PCB mounting
● Environmentally friendly, RoHS compliant
● FCC Certified
● Programmable GPIO
● SPI Debug
● On-board 3-axis accelerometer
● Device Firmware Upgrade (DFU) over UART, Contact Viaan Electronics for reference
manual
Operational
● Single operating voltage: 2.1V to 3.6V (3.3V typical)
● Temperature range: -40°C to +85°C
● Low-power consumption
● Programmable RF Communication Bit Rate up to 250 bps
● Integrated MCU, Crystal, Programmed 64 bit unique address, Radio Transceiver with
Analog Front End, Matching Circuitry, and onboard ceramic antenna
● GPIOs for control and status
RF/Analog Features
● BLE Transceiver operating in the 2.4 GHz fre quency band
● High Receiver Sensitivity: down to -94 dBm
● TX Power: adjustable up to +9 dBm high efficiency PA
● GFSK Modulation
● 100 meter coverage at suburban and 30 meter c overage at urban area
Description
VEBLE103 is a Viaan Electronics IoT BLE Module. VEBLE103 is a single-mode Bluetooth low
energy produ ct for the Bluetooth Smart market. VEBLE103 can be used where space is limited.
VEBLE103 enables ultra low-power connectivity and ba sic data transfer for applications
previously limited by the power consumption, size constraints and complexity of other wireless
standards. VEBLE103 provides everything required to create a Bluetooth low energy product

with RF, baseband, MCU, qualified Bluetooth v4.1 specification stack, 3-axis accelerometer,
and customer application running on a single compact board.
Applications
● HID: keyboards, mice, touchpads, remote controls
● Sports and fitness sensors: heart rate, runner
speed and cadence, cycle speed and cadence
● Health sensors: blood pressure, thermometer and
glucose meters
● Mobile accessories: watches, proximity tags, alert
tags and camera controls
● Smart home: heating control and lighting control
Federal Communication Commission Statement (FCC, U.S.)
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
FCC Caution:
Any changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate this equipment.
IMPORTANT NOTES