> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Gravity: BLE Sensor Beacon Pack (5 PCS)

**Type:** Product page · **SKU:** TEL0149 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/gravity-ble-sensor-beacon-pack-5-pcs.html ([markdown](https://core-electronics.com.au/gravity-ble-sensor-beacon-pack-5-pcs.html.md))

This Gravity: Wireless BLE Sensor Beacon with built-in 11-bit ADC is capable of collecting data from digital and analog sensors and broadcasting via...

> ⚠ Gravity: BLE sensor beacons need to be configured using the [ 3.3V USB-TTL tool ](https://core-electronics.com.au/usb-to-ttl-uart-rs232-serial-converter-module-pl2303hx-au-local-shipping.html)

## Pricing

- **Price:** $25.40 (inc GST) — $23.09 AUD, exc GST
- **Quantity discounts:** 6+ $21.94 (exc GST) · 12+ $21.01 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 2 today, and up to 200 more in 8–12 days.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=TEL0149:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/TEL0149:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

This Gravity wireless BLE Sensor Beacon with built-in 11-bit ADC is capable of collecting data from digital and analog sensors and broadcasting via Bluetooth. And users can access the sensor data within broadcasting range on a Bluetooth-equipped device like a smartphone, ESP32, etc.

Integrated with low-power BLE 5.3 technology, the BLE sensor beacon supports both LE and private-protocol broadcasting, and its data format works well with iBeacon, Eddystone, and other mainstream protocols. Besides, users can configure data format, broadcast content, and time intervals on a graphical interface as per their needs.

After configuration, it will run as a Bluetooth beacon when powered on, and collect and broadcast data automatically according to the settings. These sensor beacons can be used IoT sensor nodes for data collection in many scenarios such as smart farms, offices, factories, and warehouses.

**![Gravity: BLE Sensor Beacon](https://core-electronics.com.au/attachments/localcontent/TEL0149-pic_423871be283.png)**

## Specifications

- Operating Voltage: 3.3-5.5V DC
- Beacon Operating Current: <5µA
- Input Signal: digital/analog signal
- Operating Frequency Range: 2.4GHz
- ISMModulation: GFSK
- Transmitting Power: +5.0dBm
- PCB Size: 27mm\*33.5mm/1.06\*1.32"
- Mounting Hole Size: inner diameter of 3.1mm/outer diameter of 6mm
 
## Documents

- [Product wiki](https://wiki.dfrobot.com/SKU_TEL0149_Gravity_BLE_Sensor_Beacon)
- [Schematics](https://core-electronics.com.au/attachments/localcontent/d9be9ea9c6fe44ffef4346bb2c6a3505_16949c6aac5.pdf)
 
## Parts List

- 5 x Gravity: BLE Sensor Beacon
- 5 x Header Pins

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/T/E/TEL0149-1.jpg)