René's URL Explorer Experiment

Title: L4: Introduction to BLE | Physical Computing

Open Graph Title: L4: Introduction to BLE

X Title: L4: Introduction to BLE

Description: Learn Bluetooth Low Energy on the ESP32: the peripheral/central model, GATT services and characteristics, and streaming live sensor data to your phone via BLE notifications.

X Description: Learn Bluetooth Low Energy on the ESP32: the peripheral/central model, GATT services and characteristics, and streaming live sensor data to your phone via BLE notifications.

Mail addresses
jonf@cs.uw.edu

Opengraph URL: https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html

Generator: Jekyll v4.4.1

direct link

Domain: makeabilitylab.github.io

Hey, it has json ld scripts:

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Links:

Skip to main content	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#main-content
	https://makeabilitylab.github.io/physcomp/
Home	https://makeabilitylab.github.io/physcomp/
Intro to Electronics	https://makeabilitylab.github.io/physcomp/electronics/
L1: Voltage, Current, and Resistance	https://makeabilitylab.github.io/physcomp/electronics/electricity-basics.html
L2: Circuit Schematics	https://makeabilitylab.github.io/physcomp/electronics/schematics.html
L3: Ohm's Law	https://makeabilitylab.github.io/physcomp/electronics/ohms-law.html
L4: Series and Parallel Resistors	https://makeabilitylab.github.io/physcomp/electronics/series-parallel.html
L5: Using Resistors	https://makeabilitylab.github.io/physcomp/electronics/resistors.html
L6: LEDs	https://makeabilitylab.github.io/physcomp/electronics/leds.html
L7: Breadboards	https://makeabilitylab.github.io/physcomp/electronics/breadboards.html
L8: Variable Resistors	https://makeabilitylab.github.io/physcomp/electronics/variable-resistors.html
Intro to Arduino	https://makeabilitylab.github.io/physcomp/arduino/
Output	https://makeabilitylab.github.io/physcomp/arduino/intro-output.html
L1: Turning on an LED	https://makeabilitylab.github.io/physcomp/arduino/led-on.html
L2: Blinking an LED	https://makeabilitylab.github.io/physcomp/arduino/led-blink.html
L3: Debugging with Serial	https://makeabilitylab.github.io/physcomp/arduino/serial-print.html
L4: Fading an LED	https://makeabilitylab.github.io/physcomp/arduino/led-fade.html
L5: Playing Tones	https://makeabilitylab.github.io/physcomp/arduino/tone.html
L6: Blinking Two LEDs	https://makeabilitylab.github.io/physcomp/arduino/led-blink2.html
L7: RGB LEDs	https://makeabilitylab.github.io/physcomp/arduino/rgb-led.html
L8: Crossfading RGB LEDs	https://makeabilitylab.github.io/physcomp/arduino/rgb-led-fade.html
L9: Rate Blinking LEDs	https://makeabilitylab.github.io/physcomp/arduino/led-blink3.html
Input	https://makeabilitylab.github.io/physcomp/arduino/intro-input.html
L1: Using buttons	https://makeabilitylab.github.io/physcomp/arduino/buttons.html
L2: A simple piano	https://makeabilitylab.github.io/physcomp/arduino/piano.html
L3: Debouncing	https://makeabilitylab.github.io/physcomp/arduino/debouncing.html
L4: Potentiometers	https://makeabilitylab.github.io/physcomp/arduino/potentiometers.html
L5: Force-Sensitive Resistors	https://makeabilitylab.github.io/physcomp/arduino/force-sensitive-resistors.html
Arduino IDE	https://makeabilitylab.github.io/physcomp/arduino/arduino-ide.html
Inside Arduino	https://makeabilitylab.github.io/physcomp/arduino/inside-arduino.html
Advanced I/O	https://makeabilitylab.github.io/physcomp/advancedio/
Output	https://makeabilitylab.github.io/physcomp/advancedio/output.html
L1: OLED Displays	https://makeabilitylab.github.io/physcomp/advancedio/oled.html
L2: Addressable LEDs	https://makeabilitylab.github.io/physcomp/advancedio/addressable-leds.html
L3: Servo Motors	https://makeabilitylab.github.io/physcomp/advancedio/servo.html
L4: Vibromotors	https://makeabilitylab.github.io/physcomp/advancedio/vibromotor.html
Input	https://makeabilitylab.github.io/physcomp/advancedio/input.html
L1: Smoothing Input	https://makeabilitylab.github.io/physcomp/advancedio/smoothing-input.html
Serial Communication	https://makeabilitylab.github.io/physcomp/communication/
L1: Intro to Serial	https://makeabilitylab.github.io/physcomp/communication/serial-intro.html
L2: Web Serial	https://makeabilitylab.github.io/physcomp/communication/web-serial.html
L3: p5.js Serial In	https://makeabilitylab.github.io/physcomp/communication/p5js-serial.html
L4: p5.js Serial I/O	https://makeabilitylab.github.io/physcomp/communication/p5js-serial-io.html
L5: PaintIO Example	https://makeabilitylab.github.io/physcomp/communication/p5js-paint-io.html
L6: ml5.js Serial	https://makeabilitylab.github.io/physcomp/communication/ml5js-serial.html
L7: HandPose Serial	https://makeabilitylab.github.io/physcomp/communication/handpose-serial.html
Circuit Playground Express	https://makeabilitylab.github.io/physcomp/cpx/
L1: Intro to the CPX	https://makeabilitylab.github.io/physcomp/cpx/cpx.html
L2: Making with MakeCode	https://makeabilitylab.github.io/physcomp/cpx/makecode.html
L3: Button Piano	https://makeabilitylab.github.io/physcomp/cpx/button-piano.html
L4: Light-Level Instrument	https://makeabilitylab.github.io/physcomp/cpx/sensor-instrument.html
L5: Capacitive Touch	https://makeabilitylab.github.io/physcomp/cpx/capacitive-touch.html
L6: CPX as a Keyboard	https://makeabilitylab.github.io/physcomp/cpx/cpx-keyboard.html
L7: CPX as a Mouse	https://makeabilitylab.github.io/physcomp/cpx/cpx-mouse.html
L8: Analog Input	https://makeabilitylab.github.io/physcomp/cpx/analog-input.html
L9: Digital Input	https://makeabilitylab.github.io/physcomp/cpx/digital-input.html
ESP32	https://makeabilitylab.github.io/physcomp/esp32/
Fundamentals	https://makeabilitylab.github.io/physcomp/esp32/fundamentals.html
L1: Intro to the ESP32	https://makeabilitylab.github.io/physcomp/esp32/esp32.html
L2: Blinking an LED	https://makeabilitylab.github.io/physcomp/esp32/led-blink.html
L3: LED Fading with PWM	https://makeabilitylab.github.io/physcomp/esp32/led-fade.html
L4: Analog input	https://makeabilitylab.github.io/physcomp/esp32/analog-input.html
L5: Playing Tones	https://makeabilitylab.github.io/physcomp/esp32/tone.html
L6: Capacitive Touch	https://makeabilitylab.github.io/physcomp/esp32/capacitive-touch.html
Wireless	https://makeabilitylab.github.io/physcomp/esp32/wireless.html
L1: Internet of Things	https://makeabilitylab.github.io/physcomp/esp32/iot.html
L2: Bluetooth Serial	https://makeabilitylab.github.io/physcomp/esp32/bluetooth-serial.html
L3: Bluetooth Web Serial	https://makeabilitylab.github.io/physcomp/esp32/bluetooth-web-serial.html
L4: Introduction to BLE	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html
L5: Bidirectional BLE	https://makeabilitylab.github.io/physcomp/esp32/ble-bidirectional.html
ESP32 IDE Setup	https://makeabilitylab.github.io/physcomp/esp32/esp32-ide.html
Sensors	https://makeabilitylab.github.io/physcomp/sensors/
Accelerometers	https://makeabilitylab.github.io/physcomp/sensors/accelerometers.html
Force-Sensitive Resistors	https://makeabilitylab.github.io/physcomp/sensors/fsrs.html
Hall Effect Sensors	https://makeabilitylab.github.io/physcomp/sensors/hall-effect.html
Microphones	https://makeabilitylab.github.io/physcomp/sensors/microphones.html
Photoresistors	https://makeabilitylab.github.io/physcomp/sensors/photoresistors.html
Potentiometers	https://makeabilitylab.github.io/physcomp/sensors/potentiometers.html
Ultrasonic Distance	https://makeabilitylab.github.io/physcomp/sensors/ultrasonic.html
Resources	https://makeabilitylab.github.io/physcomp/resources/
Inspirations	https://makeabilitylab.github.io/physcomp/resources/inspirations.html
UW Courses	https://makeabilitylab.github.io/physcomp/resources/uw-courses.html
Signals	https://makeabilitylab.github.io/physcomp/signals/
Tools	https://makeabilitylab.github.io/physcomp/signals/tools.html
L1: Jupyter Notebook	https://makeabilitylab.github.io/physcomp/signals/jupyter-notebook.html
L2: Python	https://makeabilitylab.github.io/physcomp/signals/python.html
L3: Numpy	https://makeabilitylab.github.io/physcomp/signals/numpy.html
L4: Matplotlib	https://makeabilitylab.github.io/physcomp/signals/matplotlib.html
Signal Processing	https://makeabilitylab.github.io/physcomp/signals/signal-processing.html
L1: Quantization and Sampling	https://makeabilitylab.github.io/physcomp/signals/quantization-and-sampling.html
L2: Comparing Signals (Time Domain)	https://makeabilitylab.github.io/physcomp/signals/comparing-signals.html
L3: Frequency Analysis	https://makeabilitylab.github.io/physcomp/signals/frequency-analysis.html
Classification	https://makeabilitylab.github.io/physcomp/signals/classification.html
L1: Heuristic-Based Classification	https://makeabilitylab.github.io/physcomp/signals/step-tracker.html
L2: Shape-Based Classification	https://makeabilitylab.github.io/physcomp/signals/gesturerec-shape-based.html
L3: Feature-Based Classification	https://makeabilitylab.github.io/physcomp/signals/gesturerec-feature-based.html
L4: Feature Selection and Hyperparameter Tuning	https://makeabilitylab.github.io/physcomp/signals/feature-selection-hyperparameter.html
	https://makeabilitylab.cs.washington.edu
Makeability Lab	https://makeabilitylab.cs.washington.edu
ESP32	https://makeabilitylab.github.io/physcomp/esp32/
Wireless	https://makeabilitylab.github.io/physcomp/esp32/wireless.html
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#lesson-4-introduction-to-ble
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#table-of-contents
What is BLE?	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#what-is-ble
How BLE works	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#how-ble-works
Peripherals and centrals	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#peripherals-and-centrals
The GATT data model	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#the-gatt-data-model
UUIDs: identifying services and characteristics	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#uuids-identifying-services-and-characteristics
A note on BLE security	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#a-note-on-ble-security
Choosing between WiFi, Bluetooth Classic, and BLE	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#choosing-between-wifi-bluetooth-classic-and-ble
The ESP32 BLE library	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#the-esp32-ble-library
Materials	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#materials
Part 1: Advertising and discovery	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#part-1-advertising-and-discovery
The Arduino code	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#the-arduino-code
Discovering the ESP32 from your computer (Python)	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#discovering-the-esp32-from-your-computer-python
Discovering the ESP32 from your phone (iPhone and Android)	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#discovering-the-esp32-from-your-phone-iphone-and-android
Workbench demo	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#workbench-demo
Part 2: Streaming sensor data with notifications	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#part-2-streaming-sensor-data-with-notifications
The circuit	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#the-circuit
The Arduino code	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#the-arduino-code-1
Reading notifications from your computer (Python)	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#reading-notifications-from-your-computer-python
Reading notifications from your phone (iPhone and Android)	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#reading-notifications-from-your-phone-iphone-and-android
The 20-byte payload limit	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#the-20-byte-payload-limit
Workbench demo	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#workbench-demo-1
Exercises	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#exercises
Lesson Summary	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#lesson-summary
Resources	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#resources
Next Lesson	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#next-lesson
last two lessons	https://makeabilitylab.github.io/physcomp/esp32/bluetooth-serial.html
nRF Connect	https://www.nordicsemi.com/Products/Development-tools/nrf-connect-for-mobile
bleak	https://pypi.org/project/bleak/
Lesson 2: Bluetooth Serial	https://makeabilitylab.github.io/physcomp/esp32/bluetooth-serial.html
Lesson 3: Bluetooth Web Serial	https://makeabilitylab.github.io/physcomp/esp32/bluetooth-web-serial.html
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#what-is-ble
Lessons 2 and 3	https://makeabilitylab.github.io/physcomp/esp32/bluetooth-serial.html
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#how-ble-works
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#peripherals-and-centrals
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#the-gatt-data-model
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#uuids-identifying-services-and-characteristics
Bluetooth SIG	https://www.bluetooth.com/
Bluetooth SIG Assigned Numbers	https://www.bluetooth.com/specifications/assigned-numbers/
uuidgenerator.net	https://www.uuidgenerator.net/
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#a-note-on-ble-security
Bluetooth SIG security overview	https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#choosing-between-wifi-bluetooth-classic-and-ble
Lesson 1 (WiFi/IoT)	https://makeabilitylab.github.io/physcomp/esp32/iot.html
Lessons 2–3 (Bluetooth Classic)	https://makeabilitylab.github.io/physcomp/esp32/bluetooth-serial.html
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#the-esp32-ble-library
source on GitHub	https://github.com/espressif/arduino-esp32/tree/master/libraries/BLE
API docs	https://docs.espressif.com/projects/arduino-esp32/en/latest/api/ble.html
NimBLE-Arduino	https://github.com/h2zero/NimBLE-Arduino
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#materials
Adafruit’s ESP32-S3 Feather	https://www.adafruit.com/product/5477
ESP32-S3 Feather	https://www.adafruit.com/product/5477
bleak	https://pypi.org/project/bleak/
nRF Connect	https://www.nordicsemi.com/Products/Development-tools/nrf-connect-for-mobile
iOS	https://apps.apple.com/app/nrf-connect-for-mobile/id1054362403
Android	https://play.google.com/store/apps/details?id=no.nordicsemi.android.mcp
nRF Connect	https://www.nordicsemi.com/Products/Development-tools/nrf-connect-for-mobile
iOS	https://apps.apple.com/app/nrf-connect-for-mobile/id1054362403
Android	https://play.google.com/store/apps/details?id=no.nordicsemi.android.mcp
LightBlue	https://punchthrough.com/lightblue/
BLE Scanner	https://play.google.com/store/apps/details?id=com.macdom.ble.blescanner
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#part-1-advertising-and-discovery
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#the-arduino-code
Arduino GitHub repo	https://github.com/makeabilitylab/arduino/tree/master/ESP32/Bluetooth/BLEHelloWorld
Lesson 2	https://makeabilitylab.github.io/physcomp/esp32/bluetooth-serial.html
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#discovering-the-esp32-from-your-computer-python
bleak	https://pypi.org/project/bleak/
pySerial	https://pyserial.readthedocs.io/
Lesson 2	https://makeabilitylab.github.io/physcomp/esp32/bluetooth-serial.html
Lesson 2	https://makeabilitylab.github.io/physcomp/esp32/bluetooth-serial.html
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#discovering-the-esp32-from-your-phone-iphone-and-android
iOS	https://apps.apple.com/app/nrf-connect-for-mobile/id1054362403
Android	https://play.google.com/store/apps/details?id=no.nordicsemi.android.mcp
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#workbench-demo
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#part-2-streaming-sensor-data-with-notifications
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#the-circuit
Lesson 4: Analog Input	https://makeabilitylab.github.io/physcomp/esp32/analog-input.html
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#the-arduino-code-1
Arduino GitHub repo	https://github.com/makeabilitylab/arduino/tree/master/ESP32/Bluetooth/BLENotifySensor
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#reading-notifications-from-your-computer-python
Lesson 2	https://makeabilitylab.github.io/physcomp/esp32/bluetooth-serial.html
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#reading-notifications-from-your-phone-iphone-and-android
Communication module	https://makeabilitylab.github.io/physcomp/communication/serial-intro.html
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#the-20-byte-payload-limit
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#workbench-demo-1
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#exercises
Lesson 3, Exercise 4	https://makeabilitylab.github.io/physcomp/esp32/bluetooth-web-serial.html#exercises
IoT lesson	https://makeabilitylab.github.io/physcomp/esp32/iot.html
Lesson 3	https://makeabilitylab.github.io/physcomp/esp32/bluetooth-web-serial.html
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#lesson-summary
Lessons 2–3	https://makeabilitylab.github.io/physcomp/esp32/bluetooth-serial.html
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#resources
ESP32 BLE Arduino library source and examples	https://github.com/espressif/arduino-esp32/tree/master/libraries/BLE
ESP32 Arduino BLE API documentation	https://docs.espressif.com/projects/arduino-esp32/en/latest/api/ble.html
NimBLE-Arduino	https://github.com/h2zero/NimBLE-Arduino
nRF Connect for Mobile	https://www.nordicsemi.com/Products/Development-tools/nrf-connect-for-mobile
bleak	https://pypi.org/project/bleak/
Bluetooth SIG Assigned Numbers	https://www.bluetooth.com/specifications/assigned-numbers/
Bluetooth SIG: Security Overview	https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/
Getting Started with ESP32 BLE on Arduino IDE	https://randomnerdtutorials.com/esp32-bluetooth-low-energy-ble-arduino-ide/
	https://makeabilitylab.github.io/physcomp/esp32/ble-intro.html#next-lesson
next lesson	https://makeabilitylab.github.io/physcomp/esp32/ble-bidirectional.html
← Previous Lesson Bluetooth Web Serial	https://makeabilitylab.github.io/physcomp/esp32/bluetooth-web-serial.html
Next Lesson → Bidirectional BLE	https://makeabilitylab.github.io/physcomp/esp32/ble-bidirectional.html
	https://makeabilitylab.cs.washington.edu
	https://dub.washington.edu
	https://mhcid.washington.edu
	https://cs.washington.edu
Jon E. Froehlich	https://jonfroehlich.github.io/
Makeability Lab	https://makeabilitylab.cs.washington.edu
Just the Docs	https://just-the-docs.github.io/just-the-docs/
website GitHub	https://github.com/makeabilitylab/physcomp/
Arduino GitHub	https://github.com/makeabilitylab/arduino
p5js GitHub	https://github.com/makeabilitylab/p5js
here	https://github.com/makeabilitylab/arduino/tree/master/MakeabilityLab_Arduino_Library
GitHub Issue	https://github.com/makeabilitylab/physcomp/issues
	https://makeabilitylab.cs.washington.edu

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