Overview

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Use sensor-packed Bluefruit boards and a Raspberry Pi to build a network of sensors that send data to Adafruit IO!

This project takes advantage of CircuitPython running on the Feather Bluefruit Sense and CLUE boards (any nRF52840 Adafruit board will work) and Python running on the Raspberry Pi.

The Pi receives advertised BLE sensor data from the Feather and CLUE and then sends that data over WiFi or Ethernet to your Adafruit IO feed.

Its a super easy way to make a wireless sensor node, using the built in wireless/networking capabilities of the Raspberry Pi!

Parts

You can use any of the Adafruit nRF52840 boards and sensors you like. We'll show how it works with the Feather Sense and CLUE boards, since they pack so many sensors right on board.

Angled shot of Adafruit Feather.
The Adafruit Feather Bluefruit Sense takes our popular Feather nRF52840 Express and adds a smorgasbord of sensors...
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Animated GIF showing CLUE board displaying data from the many on-board sensors.
Do you feel like you just don't have a CLUE? Well, we can help with that - get a CLUE here at Adafruit by picking up this sensor-packed development board. We wanted to build some...
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Angled shot of Raspberry Pi 4
The Raspberry Pi 4 Model B is the newest Raspberry Pi computer made, and the Pi Foundation knows you can always make a good thing better! And what could make the Pi 4 better...
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Angled shot of Official Raspberry Pi Power Supply 5.1V 3A with USB C with Power plug facing down.
The official Raspberry Pi USB-C power supply is here! And of course, we have 'em in classic Adafruit black! Superfast with just the right amount of cable length to get your Pi 4...
$7.95
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Angled shot of Raspberry Pi 3 - Model B+
NOTE: Due to stock limitations we may only be able to offer refunds or store credit for Pis that are defective, damaged or lost in transit.The Raspberry Pi...
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USB cable - USB A to Micro-B - 3 foot long
This here is your standard A to micro-B USB cable, for USB 1.1 or 2.0. Perfect for connecting a PC to your Metro, Feather, Raspberry Pi or other dev-board or...
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Raspberry Pi Zero, SD card and case
Remember those cereal commercials that would always say, "part of a complete breakfast"? Well the Pi Zero's a lot like that bowl of cereal - while it's...
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Optional Parts

If you want to use, say, a Feather nRF52840 plus some plug-in STEMMA QT breakouts, here are some great options:

Angled shot of a Adafruit Feather nRF52840 Express.
The Adafruit Feather nRF52840 Express is the new Feather family member with Bluetooth Low Energy and native USB support featuring the nRF52840!  It's...
$24.95
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SparkFun Qwiic / Stemma QT FeatherWing with three QT boards plugged into the top
The SparkFun Qwiic FeatherWing (Shield for Thing Plus) provides an easy-to-assemble way to add the
$5.95
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Angled shot of STEMMA QT / Qwiic JST SH 4-pin Cable.
This 4-wire cable is a little over 100mm / 4" long and fitted with JST-SH female 4-pin connectors on both ends. Compared with the chunkier JST-PH these are 1mm pitch instead of...
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Angled of of JST SH 4-Pin Cable.
This 4-wire cable is 50mm / 1.9" long and fitted with JST SH female 4-pin connectors on both ends. Compared with the chunkier JST PH these are 1mm pitch instead of 2mm, but...
$0.95
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Adafruit DPS310 Precision Barometric Pressure and Altitude Sensor
How high are you right now? If you had a precision altitude sensor, you would know for sure! The DPS310 sensor from Infineon a high-precision barometric sensor, perfect for measuring...
$6.95
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Adafruit PCT2075 Temperature Sensor with STEMMA QT / Qwiic cable plugged into a Feather showing the temperature
The Adafruit PCT2075 Temperature Sensor is a 'code compatible' drop-in replacement for a very...
$4.95
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Adafruit VCNL4040 Proximity and Lux Sensor
The VCNL4040 is a handy two-in-one sensor, with a proximity sensor that works from 0 to 200mm (about 7.5 inches) and light sensor with range of 0.0125 to 6553 lux.We've all...
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Angled shot of a Adafruit APDS9960 Proximity, Light, RGB, and Gesture Sensor.
This breakout is chock full o' sensors! Add basic gesture sensing, RGB color sensing, proximity sensing, or ambient light sensing to your project with the Adafruit...
$7.50
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Adafruit BMP280 I2C or SPI Barometric Pressure & Altitude Sensor - STEMMA QT
Bosch has stepped up their game with their new BMP280 sensor, an environmental sensor with temperature, barometric pressure that is the next generation upgrade to the...
$9.95
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Adafruit BME280 I2C or SPI Temperature Humidity Pressure Sensor
Bosch has stepped up their game with their new BME280 sensor, an environmental sensor with temperature, barometric pressure and humidity! This sensor is great for all sorts...
$14.95
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Prepare the CLUE 

This guide was first published on Mar 07, 2020. It was last updated on Mar 07, 2020.

This page (Overview) was last updated on Feb 28, 2020.

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