“Last week I was heads down on BLE scanning and advertising. It’s the first phase of BLE and is incredibly powerful on it’s own. By advertising data directly, one can control a bunch of other devices all at once. I showed a simple demo of one device changing the color of another and then a more complex demo where multiple devices are advertising and multiple are scanning. By moving the scanning devices closer to different advertisers, the color changes to the nearest. To support this I’ve swapped the scan result from a list to an iterator, added rssi filtering and added advertising structure prefix filtering. These early filters reduce the number of Python level memory allocations and simplify the user code. On the library side, I’ve modeled the BLE API after the CircuitPython Register library which uses Python’s descriptor protocol to make defining advertisements declarative with easy to reuse components. This week I’m moving onto advertising designed to facilitate connections and ensuring all of the existing demos Dan has done still work.”
8-6-2021 (August 6, 2021) is the Snakiest day of the year and it’s also this year’s CircuitPython Day! The day highlights all things CircuitPython and Python on Hardware. See you there!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
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New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — New Products 7/28/21 w/ Adafruit MCP9601 (MCP96L01) I2C Thermocouple Amplifier – STEMMA QT /Qwiic!
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