Samir Makwana is a technology journalist and editor from India since past 18 years and his work appears on MakeUseOf, HowToGeek, GSMArena, BGR, GuidingTech, The Inquisitr, TechInAsia, TechWiser, and others. He has written news, features, and gadget reviews for national technology media publications. His passion is to help people with their technology problems and gadget purchases. For that, he has worked for some of the biggest international technology publications, covering news, explainers, how-to guides, listicles, and product-buying guides.
He has worked as an editor and managed teams since 2015. His expertise broadly covers computers, smartphones, game consoles, headphones, smart home products, browsers, and apps.
Building a smart home requires a variety of devices; you may not need the expensive off-the-shelf smart ones. Instead, you can assemble inexpensive temperature or humidity sensors, smart buttons, smart remotes, light bulbs, and switches, and fitness gadgets that consume very low power, support Bluetooth Low Energy, and use them with a Bluetooth proxy to easily handle them from Home Assistant.
Besides, using Bluetooth Low Energy-based smart devices frees up your network from providing IP addresses to each of them. To manage several such short-range devices, you’ll need Bluetooth proxies that act as bridges, relaying signals from your Bluetooth Low Energy devices over Wi-Fi to Home Assistant. Calculated placement of Bluetooth proxies inside and outside your house can connect your Bluetooth devices to Home Assistant, without chewing up bandwidth.
Sprinkle proxies to extend the range across the house
Adding a capability to reach more BLE devices
By default, several Bluetooth Low Energy devices have a limited range of 10 to 20 meters. Bluetooth devices can reach up to 30 meters, but only without obstructions. Connecting all of them is challenging if your Home Assistant machine doesn’t have a long-range Bluetooth adapter. However, you can deploy multiple Bluetooth proxies across your home to connect all those Bluetooth devices to Home Assistant.
Since Bluetooth proxies enable wireless communication between Bluetooth devices and Home Assistant, you can automate more devices across a larger area. Besides, a couple of controllers in your house can help you control Bluetooth devices even when you’re not too close to your Home Assistant machine.
Building a Bluetooth proxy doesn’t cost a lot
Takes only a couple of minutes to configure one
Building Bluetooth proxies with ESP32 boards that support Wi-Fi and Bluetooth lets you connect smart devices without breaking the bank. After flashing the ESPHome’s ready-made Bluetooth proxy files on an ESP32 board, you’ll need to add it to Home Assistant, configure the YAML file with relevant values, and install that file again.
Using an ESP32 board to build a Bluetooth proxy in under 10 minutes. After flashing the ready-made project on the ESPHome website, you need to add it to Home Assistant. Then use the ESPHome add-on to set values for it to use as a Bluetooth proxy, and flash the YAML file again. The ESP32 boards are quite affordable compared to a dedicated Bluetooth adapter for your Home Assistant machine.
Enjoy faster and more private control locally
Liberate smart devices from internet dependency
All Bluetooth devices and Bluetooth proxies operate locally. Bluetooth proxies quickly transmit data over your home network to the Home Assistant rig, promising faster response times since there’s no reliance on the internet or a cloud service. That also eliminates any possibility of leaking or revealing your Bluetooth device and transmission data to third-party cloud servers.
Bluetooth proxies enable communication between Home Assistant and Bluetooth devices on your home LAN. The entire communication loop takes place on your home network and never leaves it. Even your automations are triggered and executed way faster since everything happens locally, even if you’re using voice commands.
Easy to put together your private smart room
No cloud service or apps are necessary
Your BLE sensors and smart devices broadcast the data locally to the Bluetooth proxies. The Bluetooth proxies further transmit the queries to Home Assistant and send commands or instructions back to the Bluetooth devices. No third-party cloud services or dedicated apps are required to commission the data exchange. Home Assistant ensures that the data is processed locally and sent back to the devices. The communication happens locally on your home network, and nothing ever leaves your home.
In the transmission, no metadata about the device or usage pattern leaks. Also, it’s helpful to encrypt the ESPHome firmware for each Bluetooth proxy using an API key, set limits on what each device can do, and further audit each device's behavior.
Better, fine-grained presence detection
Triggering automations more accurately
Installing multiple Bluetooth proxies certainly allows setting up more fine-tuned presence detection points. Whether you’re using just your smartwatches or smartphones, you can tune your automations to trigger whenever you enter or leave a particular room or area. Alternatively, you can place a small presence sensor or beacon that detects the location of anyone entering a particular room to trigger an automation.
Besides including a bunch of ESP32-based sensors, the beacons can also serve to fine-tune your automations. Even the most basic triggers can be achievable with a sensor connected to Home Assistant via a Bluetooth proxy. For example, lights switch on automatically when someone enters a room or restroom.
Helps in improving battery life or Bluetooth low energy devices
Managing just broadcasts and no need for active connections
The majority of Bluetooth low energy sensors, such as a temperature sensor, are meant to advertise their data. They don’t remain active to maintain a two-way connection for a full handshake during data exchange. Such BLE sensors send tiny bits of data to the closest Bluetooth proxy and go back to sleep. The devices send their signals to nearby Bluetooth proxies, reducing energy use because the signal travels over a shorter distance. That’s how they conserve battery power instead of keeping the device awake for active polling all the time.
If you have a handful of Bluetooth proxies, there’s hardly any data loss, and it eliminates the need for Bluetooth devices to retry transmission. Shorter distances help reduce energy consumption and transfer small bits of data quickly.
Simple, inexpensive, and flexible to blow magic in your smart home
Setting up tiny sensors and gadgets that use Bluetooth protocol for control and automation becomes quite easy with Bluetooth proxies. Better presence detection, local control, and low cost make it easy to quickly scale your smart home, ensuring it works even when there’s no internet connectivity. Besides, you start off building a smart home with a few essential Home Assistant automations using affordable sensors and Bluetooth proxies.