M5Stack ATOMS3 Lite is a tiny ESP32-S3 IoT controller with WiFi, Bluetooth, and an infrared transmitter

ATOMS3 Lite ESP32-S3 Infrared Transmitter

ATOMS3 Lite is the latest ESP32-S3 IoT platform from the M5Stack Atom series wireless programmable controllers, doing without the 0.85-inch display and IMU sensor  found in the ATOM S3 development kit simply using an RGB LED instead. M5Stack ATOM S3 Lite features the ESP32-S3FN8 WiFi and Bluetooth SoC with 8MB SPI flash, an infrared transmitter, a USB-C port for power and programming, a few I/O pins, user and reset buttons all in just a 24x24x9.5mm housing. ATOMS3 Lite specifications: Wireless MCU – Espressif Systems ESP32-S3FN8 dual-core 32-bit Xtensa LX7 microcontroller with AI vector instructions up to 240MHz, RISC-V ULP co-processor, 512KB SRAM,  2.4GHz WiFi 4 (802.11b/g/n), Bluetooth 5.0 BLE + Mesh, 8MB flash Antenna – Internal “3D” antenna Expansion 9x pins with G5, G6, G7, G8, G38, and G39 GPIOs, 5V, 3.3V, and GND 4-pin Grove connector Misc IR LED (infrared transmitter/blaster) WS2812B-2020 RGB LED Reset and user buttons M.2 […]

Coral Dev Board Micro combines NXP i.MX RT1176 MCU with Edge TPU in Pi Zero form factor

Coral Dev Board Micro is the latest iteration of Google’s Edge AI devkit with an NXP i.MX RT1176 Cortex-M7/M4 crossover processor/microcontroller coupled with the company’s 4 TOPS Edge TPU, a camera, and a microphone in a board that’s about the size of a Raspberry Pi Zero SBC. The new board follows the original NXP i.MX 8M-based Coral Dev board that was introduced in 2019, and Coral Dev Board mini based on MediaTek MT8167S processor launched in 2020, and keeps with the trend of providing more compact solutions with lower-end host processors for edge AI. Coral Dev Board Micro specifications: MCU – NXP i.MX RT1176 processor with an Arm Cortex-M7 core @ up to 1 GHz, Cortex-M4 core up to 400 MHz, 2MB internal SRAM, 2D graphics accelerators; System Memory – 512 Mbit (64 MB) RAM Storage – 1 Gbit (128 MB) flash memory ML accelerator – Coral Edge TPU coprocessor […]

Nordic Semi nRF7002 DK low-power dual-band WiFi 6 IoT development kit launched for $56 and up

Nordic Semi nRF7002 DK is an IoT development kit based on the nRF5340 dual-core Cortex-M33 multi-protocol wireless SoC and nRF7002 companion chip adding low-power dual-band (2.4GHz and 5.0 GHz) WiFi 6 connectivity. When Nordic Semi introduced the nRF7200 dual-band WiFi 6 companion chip for nRF52840 and nRF5340 wireless SoCs and nRF9160 cellular IoT SiP last summer, the “nRF7002-PDK” development kit was only mentioned in passing with a 3D render and not much else. The company has now announced the availability of the nRF7002 DK to help developers create low-power Wi-Fi 6 IoT applications. nRF7002 DK specifications: Wireless MCU – Nordic Semi nRF5340 dual-core Arm Cortex-M33 microcontroller @ 128/64 MHz with 1 MB Flash + 512 KB RAM for the application core and 256 KB Flash + 64 KB RAM for the network core, Bluetooth 5.1 LE with direction-finding support, Bluetooth mesh, NFC, Thread, Zigbee, 802.15.4, ANT, and 2.4 GHz proprietary […]

Arduino Plant Watering Kit combines Nano RP2040 Connect with moisture sensor and submersible pump

You’ve probably seen a few plant watering projects based on Arduino over the years, and now the company has decided to launch its own Arduino Plant Watering Kit based on the Arduino Nano RP2040 Connect board and everything you need to get started to water your indoor plants. Arduino Plant Watering Kit content: Arduino Nano RP2040 Connect board (ABX00053) with Raspberry Pi RP2040 MCU, ESP32 module for WiFi, and Bluetooth LE connectivity. Arduino Nano Screw Terminal Adapter (ASX00037) Open-ended USB cable with on/off switch 5V submersible pump 1-meter of plastic hose Grove moisture sensor Grove relay module with cable Grove LED button module with cable Grove cables 50 cm 10x Jumper wires (15 cm) 12x screw connectors Simply connect the moisture sensor and the water pump (through the relay) to the Nano RP2040 Connect board, insert the moisture sensor in a flower pot, and put the pump in a recipient […]

MicroBlocks is a visual programming IDE for 32-bit microcontrollers

MicroBlocks is a visual programming IDE for 32-bit microcontrollers currently supporting the BBC Micro:bit V1/V2, Calliope mini (aka the German Micro:bit), Adafruit Circuit Playground Express and Bluefruit, Raspberry Pi Pico and Pico W, and various other boards including ESP32 and ESP8266-based boards. I discovered MicroBlocks in the list of talks for FOSDEM 2023, and although it did not make it to my virtual schedule, I thought it was interesting to look into and write about it. In their upcoming FOSDEM talk, Bernat Romagosa and Kathy Giori refer to MicroBlocks as small, fast, and human-friendly with development guided by four guiding principles: liveness, parallelism, portability, and autonomy. The IDE is inspired by Scratch, and as such, looks very similar to other visual programming interfaces I have used over the years. You can launch MicroBlocks from Google Chrome or Microsoft Edge on a PC (not a mobile device) without having to install […]

Arduino Nicla Voice enables always-on speech recognition with Syntiant NDP120 “Neural Decision Processor”

Nicla Voice is the latest board from the Arduino PRO family with support for always-on speech recognition thanks to the Syntiant NDP120 “Neural Decision Processor” with a neural network accelerator, a HiFi 3 audio DSP, and a Cortex-M0+ microcontroller core, and the board also includes a Nordic Semi nRF52832 MCU for Bluetooth LE connectivity. Arduino previously launched the Nicla Sense with Bosch SensorTech’s motion and environmental sensors, followed by the Nicla Vision for machine vision applications, and now the company is adding audio and voice support for TinyML and IoT applications with the Nicla Voice. Nicla Voice specifications: Microprocessor – Syntiant NDP120 Neural Decision Processor (NDP) with one Syntiant Core 2 ultra-low-power deep neural network inference engine, 1x HiFi 3 Audio DSP, 1x Arm Cortex-M0 core up to 48 MHz, 48KB SRAM Wireless MCU – Nordic Semiconductor nRF52832 Arm Cortex-M4 microcontroller @ 64 MHz with 512KB Flash, 64KB RAM, Bluetooth […]

LILYGO T-QT Pro 0.85-inch WiFi IoT display adds support for battery charging

LILYGO T-QT Pro is an ESP32-S3 WiFi and BLE IoT board with a 0.85-inch color display, 4MB flash, 2MB PSRAM, a USB-C port, a few GPIOs, and support for LiPo battery with charging. It is an upgrade to the ESP32-S3-based LILYGO T-QT V1.1 board that also supports LiPo battery power but lacks a charging circuit, so you had to remove the battery and charge it manually each time. The T-QT Pro adds a charging circuit and switches from an ESP32-S3 with an 8MB flash design to one using ESP32-S3FN4R2 with 4MB flash and 2MB PSRAM. LilyGO T-QT Pro specifications: Wireless MCU – Espressif Systems ESP32-S3FN4R2 dual-core Tensilica LX7 @ up to 240 MHz with vector instructions for AI acceleration, 512KB RAM, 4MB flash, 2MB PSRAM, wireless connectivity Connectivity via ESP32-S3 2.4 GHz 802.11 b/g/n Wi-Fi 4 with 40 MHz bandwidth support Bluetooth Low Energy (BLE) 5.0 connectivity with long-range support, […]

SOCORAD32 ESP32 walkie-talkie board also supports data communication (Crowdfunding)

SOCORAD32, aka ESP32 Software Controlled Radio, is a hackable, open-source hardware ESP32-based amateur radio board for walkie-talkie and data communication applications. The board comes with an ESP32 module with WiFi 4 and Bluetooth connectivity, an RDA Microelectronics RDA1846 RF IC used in many commercial walkie-talkies and offering a range up of to 5 km, a small display, a speaker, and a 18650 battery holder. SOCORAD32 specifications: Microcontroller module – ESP32-WROOVER-32E with ESP32 dual-core microcontroller, 4MB flash, 2.4 GHz WiFi and Bluetooth connectivity, built-in PCB antenna Walkie-talkie chip – RDA1846 single-chip transceiver for Walkie-Talkie applications (See datasheet and programming guide for details) Frequency Range: ISM 400 – 470 MHz Frequency Step: 5 K / 6.25 K / 12.5 K / 25 K RF Output Power: 2 W / 0.5 W (+5 KM @ 2 W) set to what the local law permits RF Input Sensitivity: -122 dBm Voice Scrambling: 8 type […]