# I2C Published articles for I2C. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## Alif Semi Balletto B1 and Ensemble E1C StartKits feature Cortex-M55 + Ethos-U55 MCU for IoT and Edge AI DevFeed: [Alif Semi Balletto B1 and Ensemble E1C StartKits feature Cortex-M55 + Ethos-U55 MCU for IoT and Edge AI]() Original publisher: [Read original article]() Author: Debashis Das Published: 2026-09-15T09:00:06Z Content type: news Language: en Sources: [CNX Software - Embedded Systems News]() Topics: [Microcontrollers](), [Embedded Systems](), [Microcontroller](), [cpu](), [Internet of things](), [Artificial Intelligence](), [SDK]() Tags: [802-15-4](), [ai](), [alif](), [ble](), [camera](), [core](), [debugger](), [development-board](), [devkit](), [edge](), [edge-ai](), [embedded-systems](), [hardware](), [i2c](), [iot](), [led](), [low-power](), [mcu](), [microcontrollers](), [mikrobus](), [open-source](), [sensor](), [specifications](), [testing](), [zephyr](), [zephyr-os]() ### AI overview Alif Semiconductor's Balletto B1 and Ensemble E1C StartKits are low-cost development boards built around Cortex-M55 microcontrollers with Ethos-U55 NPUs. The Balletto B1 adds BLE 5.3 and 802.15.4 connectivity, while both boards include camera, audio, sensor expansion, debugging, and power-measurement features. ### Source excerpt Alif Semiconductor's Ensemble E1C (SK-E1C) and Balletto B1 (SK-B1) StartKits are low-cost development boards built around the company's Cortex-M55 + Ethos-U55 microcontrollers. The Balletto B1 adds BLE 5.3 and 802.15.4 wireless connectivity, while the Ensemble E1C does not have built-in wireless connectivity. Both StartKits feature a microcontroller with a 160MHz Cortex-M55 CPU, an Ethos-U55 NPU, 2MB SRAM, and 1.8/1.9MB NVM. They also include an Arducam camera header, a mikroBUS Click Board expansion socket, and two PDM microphones for camera, audio, and sensor-based projects. The Balletto B1 additionally provides the complete RF path to a chip antenna for its wireless subsystem, while both boards feature an on-board Segger J-Link debugger for development and testing. Alif Semiconductor StartKit (SK-B1 and SK-E1C) specifications: MCU SK-E1C - Alif Semiconductor Ensemble E1C SK-B1 - Alif Semiconductor Balletto B1 CPU - Arm Cortex-M55 core with Helium-M Vector Extension @ up to 160 MHz NPU - Arm [...] The post Alif Semi Balletto B1 and Ensemble E1C StartKits feature Cortex-M55 + Ethos-U55 MCU for IoT and Edge AI appeared first on CNX Software - Embedded Systems News. ## M5Stack Module13.2 LoRa-1262 expansion board integrates 14x10 mm Stamp LoRa-1262 module DevFeed: [M5Stack Module13.2 LoRa-1262 expansion board integrates 14x10 mm Stamp LoRa-1262 module]() Original publisher: [Read original article]() Author: Debashis Das Published: 2026-09-13T05:02:54Z Content type: news Language: en Sources: [CNX Software - Embedded Systems News]() Topics: [lora](), [systems]() Tags: [connectivity](), [development-board](), [embedded-systems](), [hardware](), [i2c](), [io](), [iot](), [lora](), [lorawan](), [low-power](), [lpwan](), [m5stack](), [module](), [news](), [power-management](), [routing](), [series](), [smart-agriculture](), [smart-city](), [spi](), [wireless]() ### AI overview M5Stack has launched the Stamp LoRa-1262 SMD module and the stackable Module13.2 LoRa-1262 expansion board for M5Stack Core controllers. Based on the Semtech SX1262, the module supports several modulation modes across 868-923 MHz, with up to +22 dBm transmit power and -147 dBm receive sensitivity. Module13.2 adds an RP-SMA antenna interface, M5IOE1 I/O expansion, configurable pin routing, and selectable I2C addresses for multi-module stacking. ### Source excerpt After launching the SX1262-based M5Stamp C6LoRa tiny module, M5Stack has launched two SX1262-based LoRa add-ons for the 868-923 MHz band: the tiny Stamp LoRa-1262 SMD module for custom PCBs, and the stackable Module13.2 LoRa-1262 module for the M5Stack Core series. The Stamp LoRa-1262 supports LoRa, FSK, GFSK, MSK, GMSK, and OOK modulation, with up to +22 dBm transmit power and -147 dBm receive sensitivity. The Module13.2 adds an RP-SMA antenna interface, an M5IOE1 IO expansion chip for reset and power management, and DIP switches for flexible pin routing and configurable I2C addresses, enabling multi-module stacking. Stamp LoRa-1262 SMD module M5Stack Stamp LoRa-1262 specifications: LoRa Transceiver - Semtech SX1262 Wireless Connectivity (LoRa) Frequency Band - 868 to 923 MHz Modulation Modes - LoRa, FSK, GFSK, MSK, GMSK, OOK Bitrate - Up to 300 kbps (programmable) Transmit power (Tx) - Up to +22 dBm Receive sensitivity (Rx) - Down to -147 dBm [...] The post M5Stack Module13.2 LoRa-1262 expansion board integrates 14x10 mm Stamp LoRa-1262 module appeared first on CNX Software - Embedded Systems News. ## Can you design a chip? Announcing the protocol emulator ASIC competition DevFeed: [Can you design a chip? Announcing the protocol emulator ASIC competition]() Original publisher: [Read original article]() Author: Benjamin Devlin Published: 2026-09-10T00:00:00Z Content type: release Language: en Sources: [Jane Street]() Topics: [Chip design](), [Protocol (disambiguation)](), [Hardware](), [Open Source](), [Emulator](), [cpu](), [Reverse Engineering](), [fpga](), [Formal methods](), [Verilog]() Tags: [chip-design](), [cpu](), [emulator](), [ethernet](), [firmware](), [formal-methods](), [fpga](), [hardware](), [i2c](), [jtag](), [open-source](), [peripheral](), [protocol](), [reverse-engineering]() ### AI overview Jane Street announces a competition to design an open-source, general-purpose protocol emulator ASIC. The proposed chip would use a small programmable CPU to read and write pins, count cycles, and implement protocols in firmware, with fabrication planned through IHP and Tiny Tapeout. ### Source excerpt Last month, we asked you to reverse engineer a chip from nothing but its layout and teased a bigger challenge. Results and our favorite writeups are coming soon. In the meantime, here's our next challenge! This time, you're designing the chip, and we'll pay to fabricate our favorite designs! We're particularly interested in projects with unique functionality, as well as those that demonstrate novel approaches to design and verification methodologies! ## The Reflexes Machine turns a reaction game into an interactive experience DevFeed: [The Reflexes Machine turns a reaction game into an interactive experience]() Original publisher: [Read original article]() Author: Arduino Team Published: 2026-09-09T12:37:27Z Content type: article Language: en Sources: [Arduino Blog]() Topics: [Arduino](), [UNO Q](), [Computer vision](), [webcam](), [real-time](), [Hardware]() Tags: [architecture](), [arduino](), [building](), [camera](), [computer-vision](), [hardware](), [i2c](), [led](), [modulino-nodes](), [project](), [reaction-game](), [real-time](), [reflex-game](), [reflexes-machine](), [sensors](), [uno-q]() ### AI overview An Arduino community member built Reflexes Machine, an arcade-style reaction game using an Arduino UNO Q board, Modulino nodes, a USB camera, illuminated buttons, LED Matrix displays, and sound effects. The camera detects a player's face and automatically starts the countdown. ### Source excerpt What happens when you combine a little imagination with a powerful dual-brain board and a handful of building-block sensors? In the case of Arduino community member LucaDilo, you get a reaction game that doesn't simply wait for someone to press a button... it actually notices when you walk up and invites you to play. Reflexes [...] The post The Reflexes Machine turns a reaction game into an interactive experience appeared first on Arduino Blog. ## XIAO SAMD21 Plus and RP2040 Plus USB-C boards get additional GPIO pins, integrated Li-ion battery management DevFeed: [XIAO SAMD21 Plus and RP2040 Plus USB-C boards get additional GPIO pins, integrated Li-ion battery management]() Original publisher: [Read original article]() Author: Jean-Luc Aufranc (CNXSoft) Published: 2026-09-07T01:07:22Z Content type: news Language: en Sources: [CNX Software - Embedded Systems News]() Topics: [Embedded Systems](), [Microcontroller](), [USB](), [Raspberry Pi]() Tags: [arm](), [atmel-samd](), [battery](), [boot](), [circuitpython](), [development-board](), [embedded-systems](), [gpio](), [hardware](), [i2c](), [led](), [mcu](), [micropython](), [raspberry-pi](), [rust](), [seeed-studio](), [software](), [usb](), [zephyr](), [zephyr-os]() ### AI overview Seeed Studio has expanded its XIAO Plus Series with the XIAO SAMD21 Plus and XIAO RP2040 Plus USB-C boards. The boards retain the existing form factor while adding GPIO pins and integrated Li-ion battery management, and support several embedded development platforms. ### Source excerpt Seeed Studio has expanded its XIAO Plus Series introduced in 2025, with the XIAO SAMD21 Plus and XIAO RP2040 Plus USB-C boards adding several GPIOs and integrated Li-ion battery management to the XIAO (SAMD21) and XIAO RP2040, launched in 2020 and 2021, respectively, while keeping the same form factor. XIAO SAMD21 Plus Specifications: MCU - Microchip SAMD21G18 Arm Cortex-M0+ microcontroller at up to 48MHz with 256KB Flash,32KB SRAM USB - 1x USB Type-C port for power and programming Expansion I/Os 2x 7-pin "legacy" headers with 11x analog inputs, 11x digital I/Os, 1x DAC, SPI, UART, and I2C Castellated holes and pads with 16x digital I/Os, I2C,and I2S 3.3V I/O voltage (not 5V tolerant) Misc Reset and Boot buttons RGB LED Charge LED Power Supply 5V via USB-C port Pads for battery On-board PMIC Dimensions - 23.5x17.5 mm Temperature Range - -40°C ~ 85°C The upgraded variant of the XIAO SAMD21 [...] The post XIAO SAMD21 Plus and RP2040 Plus USB-C boards get additional GPIO pins, integrated Li-ion battery management appeared first on CNX Software - Embedded Systems News. ## Building a DIY handheld thermal camera for work and play DevFeed: [Building a DIY handheld thermal camera for work and play]() Original publisher: [Read original article]() Author: Arduino Team Published: 2026-09-03T18:19:43Z Content type: tutorial Language: en Sources: [Arduino Blog]() Topics: [Arduino](), [data](), [Image](), [3D](), [User interface design]() Tags: [3d-printed](), [arduino](), [dfrobot](), [display](), [diy](), [diy-thermal-camera](), [i2c](), [range](), [thermal-camera](), [thermal-imaging](), [touchscreen](), [uno-r4]() ### AI overview This article describes a DIY handheld thermal camera built with an Arduino UNO R4 Minima, a Seeed Studio MLX90640 thermal imaging sensor, and a DFRobot touchscreen. The board reads the sensor's 32x24 infrared data over I2C, processes it into an image, and displays it through a user interface in a 3D-printed enclosure. ### Source excerpt Thermal cameras are really cool, because they give you the ability to clearly see something we humans usually can't: temperature. It is interesting to look at the world through that lens. Thermal cameras are also very useful when working with anything that involves heat, such as for spotting a leak in an HVAC system or [...] The post Building a DIY handheld thermal camera for work and play appeared first on Arduino Blog. ## Creating an environmental logger - Part 1 DevFeed: [Creating an environmental logger - Part 1]() Original publisher: [Read original article]() Author: John Lee Published: 2026-07-15T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [ESP32](), [ESP-IDF](), [Logging](), [Terminal](), [Internet of things](), [data](), [Library]() Tags: [article](), [blog](), [esp-idf](), [esp32](), [filesystem](), [how-to](), [i2c](), [iot](), [logging](), [sensor](), [vs-code]() ### AI overview This tutorial explains how to build an environmental logger with an ESP32-C61-Devkit-C, a DHT20 temperature and humidity sensor, and ESP-IDF. Part 1 covers reading the sensor over I2C and storing measurements in a little_fs filesystem on the module's flash memory. ### Source excerpt This article shows how to create a simple environmental logger using the DHT20 sensor and store the data on a little_fs filesystem on the module's flash memory. ## Implementing a Deep-sleep wake stub application on Espressif chips to enable power-efficient IoT devices DevFeed: [Implementing a Deep-sleep wake stub application on Espressif chips to enable power-efficient IoT devices]() Original publisher: [Read original article]() Author: John Lee Published: 2025-09-02T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [Internet of things](), [Espressif](), [Boot Process](), [cpu](), [SOC]() Tags: [battery](), [blog](), [boot-process](), [deep-sleep-wake-stub](), [esp-idf](), [esp32-c6](), [espressif](), [gpio](), [how-to](), [i2c](), [iot](), [low-power](), [spi]() ### AI overview This tutorial explains how Deep-sleep wake stubs work on Espressif chips and demonstrates how to build an application using GPIO, UART, I2C, and SPI. Wake stubs can skip most of the boot sequence after deep-sleep reset, enabling faster wake-up and lower power use for short tasks. ### Source excerpt In this article, we first explain the principles behind the Deep-sleep wake stub application and then demonstrate how to implement GPIO, UART, I2C, and SPI within it. ## NuttX for Motor Control and Sensing: IMU Integration and Wireless Data Streaming DevFeed: [NuttX for Motor Control and Sensing: IMU Integration and Wireless Data Streaming]() Original publisher: [Read original article]() Author: John Lee Published: 2025-07-04T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [ESP32-C6](), [NuttX](), [Embedded Software Dev](), [Streaming](), [Hardware](), [Espressif]() Tags: [apache](), [blog](), [embedded](), [esp32](), [esp32-c6](), [espressif](), [hardware](), [how-to](), [i2c](), [imu](), [motor](), [nuttx](), [sensor](), [streaming](), [wi-fi](), [wireless]() ### AI overview This tutorial extends a NuttX motor-control system on the ESP32-C6 with MPU6050 IMU integration for vibration measurement and wireless sensor-data streaming over Wi-Fi to a host computer for visualization and analysis. ### Source excerpt This article extends the NuttX motor control system with inertial measurement unit (IMU) sensor integration for vibration measurement and wireless data streaming capabilities using the ESP32-C6 Wi-Fi connectivity. ## How to create an ESP-IDF component DevFeed: [How to create an ESP-IDF component]() Original publisher: [Read original article]() Author: John Lee Published: 2024-12-02T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [ESP-IDF](), [Embedded Software Dev](), [Embedded Systems](), [Development](), [ESP32](), [Hardware]() Tags: [architecture](), [blog](), [code](), [component](), [components](), [driver](), [embedded](), [embedded-systems](), [esp-idf](), [esp-idf-component](), [esp32-c3](), [hardware](), [how-to](), [i2c](), [library](), [maintenance](), [project](), [registry](), [reuse](), [sensor]() ### AI overview This tutorial explains how to create and add project components in ESP-IDF. It covers component structure, placement in an application or separate project, and an example sensor driver for an I2C device using an ESP32-C3 development board with an integrated SHTC3 sensor. ### Source excerpt Using a monolithic architecture to develop complex applications tightly integrated with all the business logic, peripheral drivers, protocols, cloud connectivity, and so on, might sound like a nightmare. Yet, this is common in embedded systems, because it helps keep the resource overhead to the minimum. Inevitably, such approach makes collaborative development, maintenance, and reuse of code challenging to say the least. ## Using ESP-BSP with DevKits DevFeed: [Using ESP-BSP with DevKits]() Original publisher: [Read original article]() Author: John Lee Published: 2024-09-27T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [Espressif](), [Development](), [m5stack](), [Filesystems]() Tags: [blog](), [bsp](), [development](), [devkit](), [display](), [driver](), [embedded-systems](), [esp32](), [esp32-c2](), [esp32-s2](), [esp32-s3](), [espressif](), [examples](), [gpio](), [how-to](), [i2c](), [lcd](), [led](), [m5stack](), [spi](), [spiffs]() ### AI overview This tutorial explains how to use Espressif's ESP-BSP with DevKits. It describes the Generic and DevKit BSP options, configurable buttons, LEDs, filesystems, displays, touch interfaces, and example projects. ### Source excerpt Introduction# The BSP (Board Support Package) from Espressif is ready to use package for selected boards (usually for Espressif's and M5Stack boards). This package contains main initialization functions for features, which the board contains. For example display and touch initialization, file system initialization, audio if available, LEDs and buttons. This is the easy way, how to start developing with your board. Except initialization functions, there are examples for selected board too. ## Developing User Interfaces for Custom Boards with ESP microcontrollers DevFeed: [Developing User Interfaces for Custom Boards with ESP microcontrollers]() Original publisher: [Read original article]() Author: John Lee Published: 2022-10-10T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [User Interfaces](), [Espressif](), [Microcontroller](), [configuration](), [GitHub](), [Code]() Tags: [blog](), [bsp](), [c](), [configuration](), [esp](), [espressif](), [github](), [i2c](), [lcd](), [lvgl](), [manifest](), [project](), [screen](), [spi](), [squareline](), [user-interfaces](), [waveshare]() ### AI overview This tutorial explains how to add a custom ESP-based board with a custom LCD to SquareLine Studio. It uses a WaveShare 7-inch display example and covers creating a board-support component, configuring display and touch communication, updating build and dependency files, and editing the board manifest. ### Source excerpt A few weeks ago in this article we have introduced SquareLine Studio and how it can be used to develop user interfaces. This feature was available only for Espressif's boards. But what if we wanted to use this tool for our custom designed board based on an ESP chip with a custom LCD? Here is the solution! What is the best way to add a custom board into SquareLine Studio? Start with the custom_waveshare_7inch example on from esp-bsp repository on GitHub. ## July update: community developers portal DevFeed: [July update: community developers portal]() Original publisher: [Read original article]() Published: 2021-07-15T00:00:00Z Content type: news Language: en Sources: [Community blog on PINE64]() Topics: [Development](), [Pinephone](), [Embedded Software Dev](), [RIOT](), [Arch Linux](), [Linux]() Tags: [announcements](), [code](), [community](), [developers](), [discord](), [driver](), [embedded](), [firmware](), [i2c](), [pine64](), [pinedio](), [pinephone](), [quartz64](), [update](), [wireless]() ### AI overview PINE64's July community update announces the upcoming PINE64 DevZone developer portal and reports hardware and software progress across PineTime, PinePhone, and Quartz64. It covers InfiniTime 1.2, WaspOS, the Malila firmware project, PinePhone accessories and software, Arch Linux with Plasma Mobile, and Quartz64 upstreaming work. ### Source excerpt This month's big news isn't a piece of hardware or software but rather an upcoming platform aimed at community developers called the PINE64 DevZone. But fret not, I also have a number of hardware news to report - including a new LoRa device called PineDio Stack - as well as an overview of the software progress on our flagship devices. Let's get to it. You can watch the synopsis of this month's community update on YouTube (embedded below) as well as on Odysee and PeerTube. To stay up-to-date with PINE64 news make sure to subscribe to this blog (subscription widget at the bottom of the webpage), follow PINE64 Telegram News channel, the announcements channel in Discord as well as our Twitter and Mastodon. I'd like to thank JF, Alex (clover), Danct12, Peter (pgwipeout), Martijn Braam, Brian (33YN2) and PizzaLovingNerd for their contributions to this community update. N.B. Comments on the blog post need to be in English and follow our Community Rules and Code of Conduct. Note: This image preview protects your privacy. Click to load the video from the Google servers. Link to the video & Community update video summary by PizzaLovingNerd TL;DR Housekeeping: we're creating a community developers portal called the PINE64 DevZone; sign-ups are open PineTime: sealed PineTime units with InfiniTime 1.2 & newest bootloader are now available in the PineStore for $26.99 PineTime: InfniTime 1.2 brings new apps, improvements to RAM and ROM memory and various bug fixes; upcoming release will feature a new watchface PineTime: WaspOS gets a sports app, a watch face chooser and a visual overhaul PineTime: New firmware announced - Malila is based on RIOT and in early stages of development PinePhone Hardware: final keyboard pre-production units now being made, production to start immediately after final review if no issues are found PinePhone Hardware: wireless charging and fingerprint reader back cases being tested and reviewed in coming days; LoRa back case awaiting I2C driver PinePhone S ## Vita HDMI Mod (Attempt) DevFeed: [Vita HDMI Mod (Attempt)]() Original publisher: [Read original article]() Author: yifanlu Published: 2017-12-31T08:00:00Z Content type: article Language: en Sources: [Yifan Lu]() Topics: [Hardware](), [hdmi](), [SOC](), [Development]() Tags: [components](), [connectivity](), [development](), [hacking](), [hardware](), [hdmi](), [i2c](), [lcd](), [mipi](), [oscilloscope](), [pcb](), [soc](), [vita]() ### AI overview The article documents an unsuccessful attempt to develop an HDMI mod for the PlayStation Vita. It explains the Vita's MIPI DSI outputs, the constraints of its hardware layout, and the proposed use of the ADV7533 to convert the display signal to HDMI. ### Source excerpt For the last couple of months, I've been developing an HDMI mod for the Vita on my free time. I thought it would be a fun project to practice my hardware design skills even though the end product would not be too useful (the VitaTV already exists). Unfortunately, this project did not end in success but I want to write about it anyways so you can see what I've been doing with some of the leftover money from my adapter project. ## Android Things: first look DevFeed: [Android Things: first look]() Original publisher: [Read original article]() Author: Marc Plano-Lesay Published: 2017-01-06T09:55:08Z Content type: tutorial Language: en Sources: [Marc Plano-Lesay]() Topics: [Android](), [Internet of things](), [Hardware](), [Raspberry Pi](), [intel](), [SDKs](), [API](), [Android Studio]() Tags: [adb](), [android](), [android-studio](), [framework](), [gpio](), [hardware](), [i2c](), [intel](), [iot](), [optional](), [preview](), [pwm](), [raspberry-pi](), [sdk](), [spi](), [ui]() ### AI overview This article introduces Android Things, an Android version for developing embedded IoT devices. It describes supported boards, the Peripheral I/O and User Driver APIs, limitations of the bundled Android system, optional displays, installation on physical hardware, and initial project setup with Android Studio and adb. ### Source excerpt What is Android Things? Android Things is an alternative Android version, announced at Google I/O 2015, and released as a first developer preview in December 2016. Its purpose is to develop embedded IoT devices, with a known and widely documented Android ecosystem basis. It's currently running on three different boards: the Intel Edison, the NXP Pico i.MX6UL, and the Raspberry Pi 3. Some higher-end boards are coming soon. On the SDK side, Android Things comes with a specific support library to ease low-level hardware usage. It consists in two parts: the Peripheral I/O API, which supports GPIO, PWM, I2C, SPI and UART, and the User Driver API, which allows a developer to write a hardware-specific, high-level driver, to ease hardware reusability by injecting events into the Android framework. Other applications can in turn use those events without having to interact with the hardware directly. There's a downside: the bundled Android is not as complete as the one you can find on a phone. Most of the standard applications aren't installed (Calendar, Phone...), and standard content providers are absent too (MediaProvider, Dictionary...). Android Things supports displays, with the default Android UI toolkit. However, the display is a bit different from what you're used to seeing on an Android device: there's no notification bar, navigation bar or anything, the running application will use the full display. That is, if it uses it at all: displays are purely optional.