NFC stands for Near Field Communications and is a short range wireless technology operating at 13.56 MHz. Short range really means short range: in order to communicate, the devices have to be just a few centimeters apart or less.
Near Field Communications has been part of mobile phones since 2012, when Google launched the first NFC-enabled phone, the Google Nexus S. Most Android phones have NFC reading technology. Apple added their NFC technology in 2014 with the iPhone 6/6+ but tag reading is limited to the iPhone 7 and newer.
In May 2021, Chrome for Android 91 came out – that and subsequent versions supports Web NFC – any web developer can experiment and use NFC from simple HTML pages (rather than load a special NFC app).
This guide shows how to experiment with reading and writing tags using an Android phone and Chrome and suitable tags (which are also available from Adafruit).
As 2022 starts, let’s take some time to share our goals for CircuitPython in 2022. Just like past years (full summary 2019, 2020, and 2021), we’d like everyone in the CircuitPython community to contribute by posting their thoughts to some public place on the Internet. Here are a few ways to post: a video on YouTub, a post on the CircuitPython forum, a blog post on your site, a series of Tweets, a Gist on GitHub. We want to hear from you. When you post, please add #CircuitPython2022 and email firstname.lastname@example.org to let us know about your post so we can blog it up here.
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!
Maker Business — Pololu’s account of the chip shortage
Wearables — Make it sticky
Electronics — Your job’s a joke, you’re broke, your semiconductor is DOA
Python for Microcontrollers — Python on Microcontrollers Newsletter: Raspberry Pi Pico turns one and more! #Python #CircuitPython @micropython @ThePSF
Adafruit IoT Monthly — 2021 in Recap!
Microsoft MakeCode — MakeCode Thank You!
EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey
New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — NEW PRODUCT – ESP32-S3-DevKitC-1 – ESP32-S3-WROOM-2 – 32MB Flash 8MB PSRAM
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