Build a lightweight on-demand image capture system using ESP32-CAM, MQTT, HTTP, & Mobile Application. In many situations, people need to check what is happening at a remote location without installing complex or expensive camera systems. Often, a simple image at...
Read More >>Bluetooth Low Energy
Development Services
WeMakeIoT designs and builds BLE-connected products end to end - firmware on ESP32 and Nordic nRF, GATT service architecture, BLE mesh networks, and the Flutter or React Native companion apps that pair with them. From a single prototype to a fleet of thousands of devices.
120+IoT Projects
Shipped
10+Years Experience
20+Countries Served
Why choose BLE for your productWhat we buildFAQExplore further
View technology stack →
Explore SensorVision →
Explore ESP32 services →
What is BLE? →
5 BLE applications
→
BLE is the right fit when your device needs to talk to a smartphone, run for months on a coin-cell battery, or operate in a dense indoor environment where Wi-Fi and cellular struggle. WeMakeIoT builds BLE into products where it's the correct engineering choice - not by default, but because we evaluate range, power budget, and data volume against LoRaWAN, cellular, and Wi-Fi first.
Ultra-Low Power
Devices sleep until a connection initiates - ideal for coin-cell and battery-only hardware running for months or years.
Universal Smartphone Support
Native BLE support on iOS, Android, and desktop means no dongles or gateways for consumer-facing products.
Reliable Indoors
Short range and mesh topology make BLE dependable in offices, warehouses, and retail floors where LoRa and cellular can struggle.
Low Hardware Cost
BLE radios are inexpensive and built into chips like the ESP32, keeping unit costs down at scale.
Every BLE engagement includes firmware, the mobile pairing experience, and - where needed - the cloud layer that receives the data.
BLE Firmware & GATT Design
ESP32 &
Nordic nRFWe design custom GATT services and characteristics for your device, implement secure pairing and bonding, and optimise advertising intervals for battery life. Built on ESP-IDF and Nordic's SDK depending on the chip.
BLE Mesh Networks
Multi-node deploymentsFor deployments with many devices covering a building or facility, we implement BLE mesh so nodes relay data to each other, extending effective range without a gateway on every corner.
Companion Mobile Apps
Flutter & React
NativeThe app your customer actually uses to pair, configure, and monitor the device - built cross-platform so you ship to iOS and Android from one codebase.
Gateway & Cloud Integration
ThingsBoard
& SensorVisionWhen BLE data needs to reach the cloud, we build the gateway layer (often ESP32 or Raspberry Pi based) that bridges BLE devices into ThingsBoard or our own SensorVision platform.
Where BLE fits best
Technical capabilitiesUse Cases We've Built For
Industries and product types where WeMakeIoT has shipped BLE-connected devices.
🏃
Fitness & Wearables📦
Indoor Asset Tracking💡
Smart Lighting Control🛏️
Patient & Care Monitoring🚪
Smart Access & Locks🛍️
Retail Beacons & ProximityThe BLE-specific technical work we handle on every project.
Custom GATT
services & characteristics
Secure pairing
& bonding
BLE mesh
networking
OTA firmware
updates over BLE
Advertising &
power optimisation
iBeacon &
Eddystone support
Dual-mode BLE +
Wi-Fi (ESP32)
Cross-platform app
pairing flows
How is BLE different from classic Bluetooth?
BLE sacrifices some throughput for dramatically lower power draw - it stays in sleep mode
until a connection is needed, which is why it can run on a coin-cell battery for months where classic
Bluetooth cannot.
Can BLE devices connect directly to the cloud?
Not on their own - BLE needs a gateway (a phone, or a dedicated ESP32/Raspberry Pi gateway)
to bridge data to the internet. We design that gateway layer as part of the build.
What's the realistic range of BLE?
Typically 10–30 metres indoors depending on obstructions; BLE mesh extends effective coverage
across a building by relaying between nodes rather than increasing single-hop range.
Do you build the hardware too?
We work with off-the-shelf boards (ESP32, Nordic nRF dev kits) and third-party hardware
manufacturing partners rather than doing PCB design in-house - we handle firmware, app, and cloud.
See the full IoT technology stack
How BLE fits alongside LoRaWAN, ESP32, and Particle in WeMakeIoT's approach to protocol selection.
SensorVision - our IoT SaaS platform
If your BLE gateway needs a dashboard fast, SensorVision gives you device management and alerting without building one from scratch.
ESP32 Firmware Development
Most of our BLE builds run on ESP32 - see our dedicated ESP32 development services.
New to BLE? Start with the basics
Read our plain-language introduction to how Bluetooth Low Energy works before diving into a project.
Looking for inspiration?
Five real-world applications of BLE in IoT products - from smart keys to retail beacons.
Have a BLE product in mind?
Tell us what you're building - we'll give you an honest read on whether BLE is the right protocol, and what a sensible build looks like.
Blogs
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